A
About NDT (AboutNDT/aboutndt.htm)
Absorption (Radiography/Physics/absorption.htm)
Absorption (Ultrasonics/Physics/attenuation.htm)
AC current (Basic Science/Electricity/alternatingcurrent.htm)
Acoustic Emission Testing (AE) (Course Material/NDTIntro/cc_intro001.htm)
Acoustic Impedance (Course Material/Ultrasonics/Physics/acousticimpedance.htm)
Acoustic Plane Wave (Course Material/Ultrasonics/Physics/acousticplane.htm)
Acoustic Properties (GeneralResources/MaterialProperties/materialproperties.htm)
Adjustable Sliding Probes (Course Material/EddyCurrents/ProbesAndApplication/slidingprobes.htm)
Aircraft Inspection (AboutNDT/SelectedApplications/Aircraft Inspection.htm)
Alternating Current (AC) (Basic Science/Electricity/alternatingcurrent.htm)
Ammeter (Basic Science/Electricity/amperage.htm)
Amperage (Basic Science/Electricity/amperage.htm)
Amperage (Course Material/EddyCurrents/Physics/propertiesofelectricity.htm)
Amplitude (Basic Science/Sound/components/intensity007.htm)
Analog Meter (Course Material/EddyCurrents/Instrumentation/analogmeter.htm)
Angle Beam Testing (Basic Science/sound/anglebeam.htm)
Angle Beams Testing (Course Material/Ultrasonics/MeasurementTech/anglebeam1.htm)
Angle Beams Testing (Course Material/Ultrasonics/MeasurementTech/anglebeam2.htm)
Angle Beam Transducers (Course Material/Ultrasonics/EquipmentTrans/transducertypes.htm)
Angular Frequency (Course Material/Ultrasonics/Physics/attenuation.htm)
Anisotropy (Course Material/Ultrasonics/EquipmentTrans/emattexture1.htm)
Anisotropy (Course Material/Ultrasonics/EquipmentTrans/ematcomposite.htm)
Anode (Basic Science/Radiography/xraygenerators.htm)
Area-Amplitude Blocks (Course Material/Ultrasonics/CalibrationMeth/calibrationmethods.htm)
Atom (Basic Science/Electricity/basicstructure.htm)
Atom (Basic Science/Magnetism/reviewatom.htm)
Atom (Basic Science/Radiography/atomselements.htm)
Atom Models (Basic Science/Electricity/atommodels.htm)
Atomic and Mass Numbers (Basic Science/Radiography/atomicmassnumber.htm)
Atomic Number (Basic Science/Radiography/nuclearreactions.htm)
Atomic Particles (Basic Science/Radiography/stableunstableatoms.htm)
Atoms and Elements (Basic Science/Radiography/atomselements.htm)
Attenuation (Course Material/Ultrasonics/EquipmentTrans/impedancematching.htm)
Attenuation (Course Material/Ultrasonics/Physics/attenuation.htm)
Attenuation Measurements (Course Material/Ultrasonics/MeasurementTech/attenuationmeasure.htm)
Automated Scanning (Course Material/Ultrasonics/MeasurementTech/automatedscanning.htm)
Azimuthal (Course Material/Ultrasonics/EquipmentTrans/emattexture2.htm)

B
Basic Structure of Matter (Basic Science/Electricity/basicstructure.htm)
Beam Alignment Measurements (Course Material/Ultrasonics/EquipmentTrans/tranducertesting1.htm)
Beam Profiles (Course Material/Ultrasonics/EquipmentTrans/tranducertesting1.htm)
Beer's Law (Course Material/PenetrantTest/PTMaterials/dimensionalthreshold.htm)
Bequerel, Henri (Basic Science/Radiography/discoveryelements.htm)
Bequerel, Henri (Course Material/Radiography/Introduction/history.htm)
Betatron (Basic Science/Radiography/highenergyrad/betatron_popup.htm)
Black Light (Course Materia/PenetrantTest/Introduction/history.htm)
Black-light (Course Material/MagParticle/Equipment/equipment1.htm)
Bremsstrahlung (Basic Science/Radiography/xraygeneration/bremsstrahlung_popup.htm)
Bremsstrahlung Radiation (Course Material/Radiography/EquipmentMaterials/xraysources.htm)
Bridges (Electrical)(Course Material/EddyCurrents/Instrumentation/bridges.htm)

C
Cable Electrical Characteristics (Course Material/Ultrasonics/EquipmentTrans/impedancematching.htm)
Calculators (GeneralResources/Calculator/calculator.htm)
Calibration Methods (Course Material/Ultrasonics/CalibrationMeth/calibrationmethods.htm)
Canter Model (TeachingResources/classroomtips/Tchr_BehavStratigies/Classroom_Management/Canter Model.htm)
Capacitance (Course Material/Ultrasonics/EquipmentTrans/impedancematching.htm)
Capacitive Reactance (Course Material/EddyCurrents/Instrumentation/impedanceplane.htm)
Capacitive Reactance (Course Material/EddyCurrents/Physics/impedance.htm)
Capillary Action (Course Material//PenetrantTest/Introduction/history.htm)
Capillary Pressure (Course Material/PenetrantTest/PTMaterials/surfaceenergy.htm)
Carbon Dating (Basic Science/Radiography/halflife2.htm)
Carbon 14 Dating (Basic Science/Radiography/carbon14dating.htm)
Carbon 14 Dating (Course Material/Radiography/Physics/carbondating.htm)
Careers in NDT (Careers/careers.htm)
Cathode (Basic Science/Radiography/xraygenerators.htm)
Cesium (Cs137) (Course Material/Physics/decayrate.htm)
Chadwick's Bombardment (Basic Science/Radiography/radiationsources/studyof_raddecay_popup.htm)
Characteristics of Radiation (Basic Science/Radiography/characterradiation.htm)
Chemical Element (Basic Science/Electricity/elements.htm)
Chemical Element (Basic Science/Radiography/atomselements.htm)
Chemical Formula (Basic Science/Radiography/chemicalformula.htm)
Chemical Safety (Course Material/PenetrantTest/InspectionVariables/healthandsafety.htm)
Circuit (Course Material/EddyCurrents/Physics/currentflow.htm)
Circuit Diagrams (Basic Science/Electricity/circuitdiagrams.htm)
Circuits & Phase (Course Material/EddyCurrents/Physics/circuitsphase.htm)
Classroom Tips (TeachingResources/classroomtips.htm)
Cleaning Chemicals (Course Material/PenetrantTest/MethodsTech/researchoncleaning.htm)
Cleaning Methods (Course Material/PenetrantTest/MethodsTech/researchoncleaning.htm)
Cloud Chamber (Basic Science/Radiography/detectionmeasurement/cloudchamber_popup.htm)
Coefficients (Course Material/Ultrasonics/Physics/reflectiontransmission.htm)
Coil Design - Diameter (Course Material/EddyCurrents/CoilDesign/diameter.htm)
Coil Design - Turns (Course Material/EddyCurrents/CoilDesign/turns.htm)
Cobalt (Co60) (Course Material/Physics/decayrate.htm)
College Students (Welcome/welcome_college.htm)
Collimated (Course Material/Radiography/Physics/absorption.htm)
Color and Fluorescence (Course Material/PenetrantTest/PTMaterials/colorandfluorescents.htm)
Complex Electrical Impedance (Course Material/Ultrasonics/EquipmentTrans/tranducertesting2.htm)
Composite Inspection (Course Material/Ultrasonics/EquipmentTrans/ematcomposite.htm)
Compound (Basic Science/Electricity/elements.htm)
Compound (Basic Science/Radiography/atomselements.htm)
Compression (Basic Science/sound/vibration/discussion002.htm)
Compton Effect (Basic Science/Radiography/ionization/compton_popup.htm)
Compton Scattering (C) (Course Material/Radiography/Physics/radmatinteraction.htm)
Compton Scattering (Course Material/Radiography/Physics/comptonscattering.htm)
Computed Tomography (Course Material/AdvancedTechniques/computedtomography.htm)
Conductivity (Course Material/EddyCurrents/Introduction/historyofET.htm)
Conductivity (Course Material/EddyCurrents/ProbesAndApplication/conductivitymeasurements.htm)
Conductors (Basic Science/Electricity/valenceshell.htm)
Conductors (Course Material/EddyCurrents/Physics/propertiesofelectricity.htm)
Conductors and Insulators (Basic Science/Electricity/conductorsinsulators.htm)
Constructive Interference (Basic Science/Sound/interference.htm)
Contact Transducers (Course Material/Ultrasonics/EquipmentTrans/transducertypes.htm)
Contaminants (Course Material/PenetrantTest/MethodsTech/preparation.htm)
Continuum (Course Material/Radiography/EquipmentMaterials/xraysources.htm)
Contrast & Definition (Course Material/Radiography/TechCalibrations/contrastdefinition.htm)
Contrast Sensitivity (Course Material/PenetrantTest/Introduction/contrastsensitivity.htm)
Corrosion (Course Material/Radiography/EquipmentMaterials/isotopesources.htm)
Corrosion Damage (Course Material/EddyCurrents/ProbesAndApplication/corrosiondamage.htm)
Coulomb (Basic Science/Electricity/amperage.htm)
Coulomb (Course Material/EddyCurrents/Physics/propertiesofelectricity.htm)
Course Materials (EducationResources/CommunityCollege/communitycollege.htm)
Crack Angle Deviation (Course Material/EddyCurrents/ProbesAndApplication/slidingprobes.htm)
Crack Detect (Reflection) (Course Material/EddyCurrents/ProbesAndApplication/crackdetection.htm)
Crack Detection (Course Material/EddyCurrents/ProbesAndApplication/slidingprobes.htm)
Crack Tip Defraction (Course Material/Ultrasonics/MeasurementTech/cracktip.htm)
Critical Angle (Basic Science/sound/interference/discussion010.htm)
Critical Angle (Basic Science/sound/refraction/discussion011.htm)
Curie (Basic Science/Radiography/halflife1.htm)
Curies, Marie & Pierre (Basic Science/Radiography/curies.htm)
Curies (Course Material/Radiography/Physics/nature.htm)
Current (Course Material/EddyCurrents/Physics/currentflow.htm)
Current Flow & Ohm's Law (Course Material/EddyCurrents/Physics/currentflow.htm)
Curvature Corrections (Course Material/Ultrasonics/CalibrationMeth/corrections.htm)
Cyclotron (Basic Science/Radiography/highenergyrad/cyclotron_popup.htm)
Cylindrical Void Formula (Course Material/PenetrantTest/PTMaterials/viscosity.htm)

D
DC (Direct Current) (Basic Science/Electricity/directcurrent.htm)
Dead Spots (Basic Science/sound/interference/discussion010.htm)
Decay Rate (Course Material//Physics/decayrate.htm)
Delay Line Transducers (Course Material/Ultrasonics/EquipmentTrans/transducertypes.htm)
Density (Basic Science/sound/speedinmaterials/discussion004.htm)
Density (Course Material/PenetrantTest/PTMaterials/specificgravity.htm)
Density (Course Material/Radiography/TechCalibrations/radiographicdensity.htm)
Depth & Current Density (Course Material/EddyCurrents/Physics/depthcurrentdensity.htm)
Depth of Penetration and Radiation Energy (Basic Science/Radiography/penetrationdepth.htm)
Destructive Interference (Basic Science/Sound/interference/discussion010.htm)
Detection Devices (Basic Science/Radiography/detectionmeasurement/other_detectdevices_popup.htm)
Deuteron (Basic Science/Radiography/radiationsources/fusion_popup.htm)
Deutrons (Course Material/Radiography/Physics/nature.htm)
Developers (Course Material/PenetrantTest/PTMaterials/developers.htm)
Developers (Course Material/PenetrantTest/MethodsTech/developer.htm)
Developing Film (Basic Science/Radiography/developingfilm.htm)
Diamagnetic Materials (Basic Science/Magnetism/electronpairing/discussion006.htm)
Diaphragm (Basic Science/vibration/discussion002.htm)
Diffraction (Basic Science/sound/reflection/discussion012.htm)
Diffraction (Course Material/Ultrasonics/EquipmentTrans/radiatedfields.htm)
Diffraction (Course Material/Ultrasonics/MeasurementTech/cracktip.htm)
Dimensional Threshold (Course Material/PenetrantTest/PTMaterials/dimensionalthreshold.htm)
Direct current (DC) (Basic Science/Electricity/directcurrent.htm)
Direct Current (DC) (Course Material/MagParticle/Equipment/equipment1.htm)
Discipline with Dignity (TeachingResources/classroomtips/Tchr_BehavStratigies/Discipline_with_Dignity.htm)
Discovery of Radioactivity (Basic Science/Radiography/discoveryrad.htm)
Display - Analog Meter (Course Material/EddyCurrents/Instrumentation/analogmeter.htm)
Distance Amplitude Correction (DAC) (Course Material/Ultrasonics/CalibrationMeth/corrections.htm)
Distance-Amplitude Blocks (Course Material/Ultrasonics/CalibrationMeth/calibrationmethods.htm)
Doppler (Basic Science/sound/dopplereffect/discussion009.htm)
Doppler, Christian Johann (Basic Science/sound/dopplereffect/discussion009.htm)
Doppler Effect (Basic Science/sound/dopplereffect.htm)
Dual Element Transducers (Course Material/Ultrasonics/EquipmentTrans/transducertypes.htm)
Ductility (Course Material/Ultrasonics/EquipmentTrans/emattexture1.htm)
Dwell Time (Course Material/PenetrantTest/MethodsTech/application.htm)

E
Ear (Basic Science/sound/humanear.htm)
Ears (Course Material/Ultrasonics/EquipmentTrans/emattexture1.htm)
EC Material Properties (Course Material/EddyCurrents/FormuleaAndTables/materialproperties.htm)
EC Standards & Methods (Course Material/EddyCurrentsFormuleaAndTables/standardsmethods.htm)
Echoes (Basic Science/sound/reflection/discussion012.htm)
Eddy Currents (Basic Science/Electricity/eddycurrents.htm)
Eddy Current Coils (GeneralResources/Calculator/calculator.htm)
Eddy Current Inspection (Course Material/EddyCurrents/Introduction/presentstateofET.htm)
Eddy Current Instruments (Course Material/EddyCurrents/Instrumentation/ecinstruments.htm)
Eddy Current Scope (Basic Science/Electricity/workwithelectricity.htm)
Eddy Current Testing (Basic Science/Electricity/eddycurrenttesting.htm)
Eddy Current Testing (Course Material/EddyCurrents/Introduction/historyofET.htm)
Eddy Current Testing (Course Material/NDTIntro/cc_intro001.htm)
Eddy Current Testing (EC) (Course Material/cc_ec_index.htm)
Educational Institutions Offering NDT Courses (EducationResources/EducationalOps/educationalops.htm)
Educational Resources (EducationResources/educationresource.htm)
Educational Web Sites (Teaching Resources/Classroom Tips/WebSites for Tchrs&Ss/Educational_Web_Sites.htm)
Elastic (Course Material/Ultrasonics/Physics/elasticsolids.htm)
Elastic Constants (Course Material/Ultrasonics/Physics/elasticsolids.htm)
Elastic Modulus (Course Material/Ultrasonics/EquipmentTrans/pulserreceivers.htm)
Elastic Modulus (Course Material/Ultrasonics/Physics/modeconversion.htm)
Elastic Properties of Solids (Course Material/Ultrasonics/Physics/elasticsolids.htm)
Elasticity (Basic Science/sound/speedinmaterials/discussion004.htm)
Electric Motor (Basic Science/Magnetism/electricmotor.htm)
Electrical Charge (Basic Science/Electricity/electriccharge.htm)
Electrical Conductivity and Resistivity Properties (GeneralResources/MaterialProperties/materialproperties.htm)
Electrical Contact (Course Material/EddyCurrents/ProbesAndApplication/slidingprobes.htm)
Electrical Current (Basic Science/Electricity/valenceshell.htm)
Electrical Current (Basic Science/Electricity/electricalcurrent.htm)
Electrical Impedance Plots (Course Material/Ultrasonics/EquipmentTrans/tranducertesting1.htm)
Electricity (Basic Science/Electricity/workwithelectricity.htm)
Electricity (Basic Science/Electricity/electricityintro.htm)
Electricity (Basic Science/Electricity/electricalcurrent.htm)
Electricity (Course Material/EddyCurrents/Physics/propertiesofelectricity.htm)
Electricity and Magnetism (Basic Science/Magnetism/electricitymagnet.htm)
Electricity Table of Contents (Basic Science/HighSchool/Electricity/hs_elec_index.htm)
Electromagetic Force (EMF) (Basic Science/Electricity/voltage.htm)
Electromagnet (Basic Science/Electricity/electromagnetism.htm)
Electromagnets (Basic Science/Magnetism/electromagnets.htm)
Electromagnets (Course Material/MagParticle/Equipment/equipment1.htm)
Electromagnetic Acoustic Transducers (EMATS) (Course Material/Ultrasonics/EquipmentTrans/emats.htm)
Electromagnetic Field (Basic Science/Electricity/electrostaticfield.htm)
Electromagnetic Induction (Basic Science/Electricity/electroinduction.htm)
Electromagnetic Induction (Basic Science/Magnetism/electricitymagnet2/discussion014.htm)
Electromagnetic Induction (Course Material/EddyCurrents/Introduction/historyofET.htm)
Electromagnetic Induction (Course Material/EddyCurrents/Physics/inductance.htm)
Electromagnetic Radiation (Basic Science/Radiography/nuclearreactions/twoforms_nucrad_popup.htm)
Electromagnetic Radiation (Course Material/Radiography/EquipmentMaterials/xraysources.htm)
Electromagnetic Radiation (Course Material/Radiography/Physics/nature.htm)
Electromagnetic Spectrum (Basic Science/Radiography/characterradiation.htm)
Electromagnetic Spectrum (Course Material/Radiography/Physics/nature.htm)
Electromagnetic Testing (Course Material/NDTIntro/cc_intro001.htm)
Electromagnetism (Basic Science/Electricity/electromagnetism.htm)
Electromagnets (Basic Science/Magnetism/electromagnets.htm)
Electromagnets (Basic Science/Magnetism/electromagnets/discussion012.htm)
Electromagnets (Basic Science/Magnetism/electricitymagnet/discussion013.htm)
Electromagnets (Course Material/MagParticle/Equipment/equipment1.htm)
Electromotive Force (Course Material/EddyCurrents/physics/properitesofelectricity)
Electromotor Force Basic Science/Electricity/voltage.htm)
Electron Pairing (Basic Science/Magnetism/electronpairing.htm)
Electron Volt (Basic Science/Radiography/characterradiation/measuringrad_popup.htm)
Electrons (Basic Science/Electricity/atommodels.htm)
Electrons (Basic Science/Electricity/electriccharge.htm)
Electrons (Basic Science/Magnetism/reviewatom/discussion004.htm)
Electrons (Basic Science/Radiography/subatomicparticles.htm)
Electrons(Basic Science/Radiography/xraygenerators.htm)
Electrons (Basic Science/Radiography/electrons.htm)
Electroscope (Basic Science/Radiography/detectionmeasurement/electroscope_popup.htm)
Electrostatic Field (Basic Science/Electricity/electriccharge.htm)
Electrostatic Field (Basic Science/Electricity/electrostaticfield.htm)
Electrostatic Generator (Basic Science/Radiography/highenergyrad/electrostaticgen_popup.htm)
Elements (Basic Science/Electricity/elements.htm)
Elements and Atoms (Basic Science/Radiography/atomselements.htm)
Ellipitical Void Formula (Course Material/PenetrantTest/PTMaterials/viscosity.htm)
EMATs With Composites (Course Material/Ultrasonics/EquipmentTrans/ematcomposite.htm)
Emulsifier Bath (Course Material/PenetrantTest/QualityProcess/emulsifiers.htm)
Emulsifier Concentration and Contact Time (Course Material/PenetrantTest/QualityProcess/emulsifiers.htm)
Emulsifiers (Course Material/PenetrantTest/PTMaterials/emulsifiers.htm)
Error Analysis (Course Material/Ultrasonics/EquipmentTrans/erroranalysis.htm)
Erythema Dose (Course Material/Radiography/Physics/radiationsafety.htm)
Etchants (Course Material/PenetrantTest/MethodsTech/researchoncleaning.htm)
Examples (Course Material/MagParticle/Indications/examples.htm)
Exploration (TeachingResources/ClassroomTips/Research-based Framework/exploring.htm)
Exposure (Course Material/Radiography/Physics/radiationsafety.htm)
Exposure Calculations (Course Material/Radiography/TechCalibrations/exposurecalculations.htm)
Exposure Calculations (GeneralResources/Calculator/calculator.htm)
Exposure Vaults and Cabinets (Course Material/Radiography/EquipmentMaterials/vaultscabinets.htm)
Eye's Response to Light (Course Material/PenetrantTest/Introduction/lightresponse.htm)

F
Faraday, Michael (Course Material/EddyCurrents/Introduction/historyofET.htm)
Faraday's Law (Course Material/EddyCurrents/Physics/inductance.htm)
Faraday's Law (Course Material/EddyCurrents/Physics/selfinductance.htm)
Fatigue Cracks (Course Material/PenetrantTest/Principles/commonuses.htm)
Ferromagnetic (Course Material/MagParticle/Introduction/introduction.htm)
Ferromagnetic (Course Material/EddyCurrents/Physics/mutualinductance.htm)
Ferromagnetic Materials (Basic Science/Magnetism/magneticbehavior/discussion002.htm)
Ferromagnetic Materials (Basic Science/Magnetism/ferromagmaterials.htm)
Field Intensity (Basic Science/Electricity/electrostaticfield.htm)
Film Developing (Basic Science/Radiography/developingfilm.htm)
Film Handling (Course Material/Radiography/EquipmentMaterials/radiographicfilm.htm)
Film Packaging (Course Material/Radiography/EquipmentMaterials/radiographicfilm.htm)
Film Processing (Course Material/Radiography/TechCalibrations/filmprocessing.htm)
Film Selection (Course Material/Radiography/EquipmentMaterials/radiographicfilm.htm)
Filters in Radiography (Course Material/Radiography/Physics/filters.htm)
Fission (Basic Science/Radiography/radiationsources/fission_popup.htm)
Fixed Sliding Probes (Course Material/EddyCurrents/ProbesAndApplication/slidingprobes.htm)
Flash Point Interference (Course Material/Ultrasonics/MeasurementTech/flawreconstruction.htm)
Flaw Reconstruction (Course Material/Ultrasonics/MeasurementTech/flawreconstruction.htm)
Fluorescence (Course Material/PenetrantTest/PTMaterials/colorandfluorescents.htm)
Fluorescent (Course Material/MagParticle/Equipment/equipment1.htm)
Fluorescent (Course Material//PenetrantTest/Introduction/history.htm)
Fluorescent Minerals (Basic Science/Radiography/discoveryrad.htm)
Fraunhofer (Course Material/Ultrasonics/EquipmentTrans/radiatedfields.htm)
Fraunhofer (Course Materia/Ultrasonics/EquipmentTrans/beamspread.htm)
Free Electron (Basic Science/Electricity/freeelectron.htm)
Free Electron (Basic Science/Electricity/valanceshell.htm)
Frequency (Basic Science/Radiography/characterradiation/freqwavelength_popup.htm)
Frequency (Course Material/Ultrasonics/Physics/acousticplane.htm)
Frequency (Basic Science/Sound/components/pitch007.htm)
Frequency and Pitch (Basic Science/sound/frequencypitch.htm)
Frequency Response (Course Material/Ultrasonics/EquipmentTrans/tranducertesting2.htm)
Fresnel (Course Material/Ultrasonics/EquipmentTrans/radiatedfields.htm)
Function Generators (Course Material/Ultrasonics/EquipmentTrans/functiongenerators.htm)
Fusion (Basic Science/Radiography/radiationsources/fusion_popup.htm)

G
Galvanometer (Basic Science/Magnetism/electricitymagnet2.htm)
Gamma Rays & X-Rays Table of Contents (Basic Science/hs_rad_index.htm)
Geometry/X-ray Res (Course Material/Physics/geometryxrayres.htm)
Goal Setting (TeachingResources/ClassroomTips/Research-based Framework/goal_setting.htm)
Graduate Assistantships (EducationResources/Scholarships/scholarships.htm)
Grain Noise Modeling (Course Material/Ultrasonics/CalibrationMeth/grainnoise.htm)
Grinding (Course Material/PenetrantTest/Principles/commonuses.htm)

H
Half-life (Basic Science/Radiography/halflife1.htm)
Half-life (Basic Science/Radiography/halflife2.htm)
Half-life (Course Material/Radiography/Physics/carbondating.htm)
Half Value Layer (HVL) (Basic Science/Radiography/penetrationdepth.htm)
Health & Safety (Course Material/PenetrantTest/InspectionVariables/healthandsafety.htm)
Health Concerns (Course Material//Radiography/Introduction/history.htm)
Health Concerns (Course Material/Radiography/Introduction/presentstate.htm)
Heat Treat Verification (Course Material/EddyCurrents/ProbesAndApplication/conductivitymeasurements2.htm)
Henries (H) (Course Material/EddyCurrents/Physics/inductance.htm)
High Energy Radiation Systems (Basic Science/Radiography/highenergyrad.htm)
High Frequency Tranducers (Course Material/Ultrasonics/EquipmentTrans/transducertypes.htm)
History of PT (Course Material/PenetrantTest/Introduction/history.htm)
History Radiography (Course Material//Radiography/Introduction/history.htm)
History of UT(Course Material/Ultrasonics/Introduction/history.htm)
History of EC (Course Material/EddyCurrents/Introduction/historyofET.htm)
History of MPI (Course Material/MagParticle/Introduction/history.htm)
How we measure electricity (Basic Science/Electricity/electriccharge.htm)
Human Ear (Basic Science/sound/humanear.htm)
Human Eye's Response to Light (Course Material/PenetrantTest/Introduction/lightresponse.htm)
Hydrophilic Emulsifiers (Course Material/PenetrantTest/QualityProcess/emulsifiers.htm)

I
Imaging Consideration (Course Material/Radiography/TechCalibrations/imageconsiderations.htm)
Immersion Transducers (Course Material/Ultrasonics/EquipmentTrans/transducertypes.htm)
Immersion Ultrasonic Testing (Basic Science/sound/immersion.htm)
Impedance (Course Material/Ultrasonics/EquipmentTrans/pulserreceivers.htm)
Impedance (Course Material/Ultrasonics/EquipmentTrans/impedancematching.htm)
Impedance (Course Material/EddyCurrents/Physics/impedance.htm)
Impedance Matching (Course Material/EddyCurrents/CoilDesign/impedancematching.htm)
Impedance Matching (Course Material/Ultrasonics/EquipmentTrans/impedancematching.htm)
Impedance Plane (Course Material/EddyCurrents/Instrumentation/impedanceplane.htm)
Improving Detection (Course Material/PenetrantTest/Introduction/improvingdetection.htm)
Incident Photon (Course Material/Radiography/Physics/radmatinteraction.htm)
Incoherent Scattering (Course Material/Radiography/Physics/radmatinteraction.htm)
Independent Thinking (TeachingResources/ClassroomTips/Research-based Framework/independent_thinking.htm)
Inductance (Course Material/EddyCurrents/Physics/inductance.htm)
Induction (Basic Science/Electricity/electroinduction.htm)
Induction & Inductance (Course Material/EddyCurrents/Physics/inductance.htm)
Inductive Reactance (Course Material/EddyCurrents/Instrumentation/impedanceplane.htm)
Inductive Reactance (Course Material/EddyCurrents/Physics/selfinductance.htm)
Inductive Reactance (Course Material/EddyCurrents/Physics/impedance.htm)
Inertial (Course Material/Ultrasonics/Physics/elasticsolids.htm)
Instrument Display (Liftoff) (Course Material/EddyCurrents/ProbesAndApplication/slidingprobes.htm)
Insulators (Basic Science/Electricity/valenceshell.htm)
Insulators (Course Material/EddyCurrents/Physics/propertiesofelectricity.htm)
Insulators and Conductors (Basic Science/Electricity/conductorsinsulators.htm)
Intensity (Basic Science/Sound/components/intensity007.htm)
Interaction of RT/Matter (Course Material/Radiography/Physics/radmatinteraction.htm)
Interaction with Matter (Basic Science/Radiography/interactionradmat.htm)
Interference (Basic Science/sound/interference/discussion010.htm)
Intermediates (Basic Science/Radiography/radiationsources/fission_popup.htm)
Inverse Square Law (Course Material/Radiography/Physics/inversesquare.htm)
Ionization (Basic Science/Radiography/ionization.htm)
Ionizing Radiation (Course Material/Radiography/Physics/nature.htm)
Iridium (Ir192) (Course Material/Physics/decayrate.htm)
Isotope (Course Material/Radiography/Physics/carbondating.htm)
Isotope (Course Material/Radiography/Physics/nature.htm)
Isotopes (Basic Science/Radiography/isotopes.htm)

J
Joule (Basic Science/Electricity/voltage/thevoltpopup.htm)
Joule (Course Material/EddyCurrents/Physics/propertiesofelectricity.htm)

K
Klein-Nishina Formula (Course Material/Radiography/Physics/kleinnishina.htm)
K-shell (Course Material/Radiography/EquipmentMaterials/xraysources.htm)

L
Lamb Wave Generation (Course Material/Ultrasonics/EquipmentTrans/ematlambwave.htm)
Latent Image (Basic Science/Radiography/producearadiograph.htm)
Leak Testing (LT) (Course Material/NDTIntro/cc_intro001.htm)
Leakage Field (Course Material/MagParticle/Introduction/basicprinciples.htm)
Leakage Fields (Course Material/MagParticle/Equipment/equipment2.htm)
Learning Styles (TeachingResources/classroomtips/Tchr_BehavStratigies/Learning_Styles.htm)
Left-hand Rule (Basic Science/Electricity/electrostaticfield.htm)
Lenz's Law (Course Material/EddyCurrents/Physics/selfinductance.htm)
Liftoff (Course Material/Radiography/Physics/radmatinteraction.htm)
Linear Accelerator (Basic Science/Radiography/highenergyrad/linearaccel_popup.htm)
Lipophilic Emulsifiers (Course Material/PenetrantTest/QualityProcess/emulsifiers.htm)
Listening (TeachingResources/classroomtips/Tchr_BehavStratigies/Importance_of_Listening.htm)
Liquid Penetrant Inspection (LPI) (Course Material/PenetrantTest/Introduction/improvingdetection.htm)
Liquid Penetrant Inspection (Steps for) (Course Material/PenetrantTest/Principles/liquidpi.htm)
Load (Basic Science/Electricity/seriescircuit.htm)
Longitudinal Waves (Basic Science/sound/vibration/discussion002.htm)
Longitudinal Waves (Course Material/Ultrasonics/MeasurementTech/velocitymeasure.htm)
Longitudinal Waves (Course Material/Ultrasonics/Physics/wavepropagation.htm)

M
Magnet (Basic Science/Magnetism/magneticbehavior/discussion002.htm)
Magnet (Basic Science/Magnetism/twoends.htm)
Magnetic Behavior (Basic Science/Magnetism/magneticbehavior.htm)
Magnetic Domain (Basic Science/Magnetism/magneticdomain.htm)
Magnetic Domain (Basic Science/Magnetism/magneticdomain/discussion007.htm)
Magnetic Field (Basic Science/Magnetism/electronpairing/discussion006.htm)
Magnetic Field (Basic Science/Magnetism/fieldcreation.htm)
Magnetic Field (Basic Science/Magnetism/fieldcreation/discussion005.htm)
Magnetic Field (Basic Science/Magnetism/linesofforce/discussion009.htm)
Magnetic Field (Basic Science/Magnetism/magneticfields.htm)
Magnetic Field (Course Material/EddyCurrents/Physics/inductance.htm)
Magnetic Fields (Course Material/MagParticle/Introduction/basicprinciples.htm)
Magnetic Flux (Course Material/EddyCurrents/Physics/mutualinductance.htm)
Magnetic Lines of Force (Basic Science/Magnetism/linesofforce.htm)
Magnetic Lines of Force (Basic Science/Magnetism/linesofforce/discussion009.htm)
Magnetic Moment (Course Material/Radiography/Physics/kleinnishina.htm)
Magnetic Particle Inspection (Basic Science/Magnetism/magnetismndt.htm)
Magnetic Particle Testing (Course Material/NDTIntro/cc_intro001.htm)
Magnetic Permeability (Course Material/EddyCurrents/Physics/mutualinductance.htm)
Magnetic Poles (Course Material/MagParticle/Introduction/basicprinciples.htm)
Magnetic Properties (Basic Science/Magnetism/magneticproperties.htm)
Magnetic Testing (MT) (Course Material/cc_mpi_index.htm)
Magnetism (Basic Science/Magnetism/electricitymagnet2.htm)
Magnetism (Basic Science/Magnetism/magneticbehavior/discussion002.htm)
Magnetism (Basic Science/Magnetism/magnetismintro.htm)
Magnetism (Course Material/MagParticle/Introduction/history.htm)
Magnetism and Electricity (Basic Science/Magnetism/electricitymagnet.htm
Magnetism and the Electric Motor (Basic Science/Magnetism/electricmotor.htm)
Magnetism and the Direction of Current Flow (Basic Science/Magnetism/currentflow.htm)
Magnetism in NDT (Basic Science/Magnetism/magnetismndt.htm)
Magnetism Table of Contents (BasicScience/hs_mag_index.htm)
Magnetostrictive (Course Material/Ultrasonics/EquipmentTrans/piezotransducers.htm)
Manual Processing & Darkrooms (Course Material/Radiography/TechCalibrations/filmprocessing.htm)
Mass and Atomic Numbers (Basic Science/Radiography/atomicmassnumber.htm)
Mass Number (Basic Science/Radiography/nuclearreactions.htm)
Material Properties (Course Material/Ultrasonics/Physics/modeconversion.htm)
Material Properties (UT) (Course Material/Ultrasonics/ReferenceInformation/matproperties.htm)
Material Property Tables (GeneralResources/MaterialProperties/materialproperties.htm)
Material Smear (Course Material/PenetrantTest/MethodsTech/materialsmear.htm)
Matter (Basic Science/Magnetism/reviewatom/discussion004.htm)
Measuring Attenuation (Course Material/Ultrasonics/MeasurementTech/attenuationmeasure.htm)
Metabolic Processes (Course Material/Radiography/Physics/carbondating.htm)
Metal Smear (Course Material/PenetrantTest/MethodsTech/materialsmear.htm)
Metal Thinning in Tubing (Course Material/EddyCurrents/ProbesAndApplication/corrosiondamage.htm)
Mode Conversion (Course Material/Ultrasonics/Physics/modeconversion.htm)
Modes of Sound Waves (Course Material/Ultrasonics/Physics/modepropagation.htm)
Molecule (Basic Science/Electricity/basicstructure.htm)
Momentum (Course Material/Radiography/Physics/comptonscattering.htm)
Motivation (TeachingResources/classroomtips/Tchr_BehavStratiges/Motivating_Students.htm)
Multi-Frequency Tech. (Course Material/EddyCurrents/AdvancedTechniques/multiplefreqtechniques.htm)
Mutual Inductance (Course Material/EddyCurrents/Physics/inductance.htm)
Mutual Inductance (Course Material/EddyCurrents/Physics/mutualinductance.htm)

N
National Science Foundation (SiteOfTheWeek/National Science Foundation.htm)
Natural Frequency (Basic Science/sound/frequencypitch/discussion008.htm)
Nature of Penetrating RT (Course Material/Radiography/Physics/nature.htm)
NDE (Course Material/Ultrasonics/Introduction/history.htm)
NDE Defined (Course Material/NDTIntro/cc_intro001.htm)
NDE Introduction (Course Material/NDTIntro/cc_intro001.htm)
NDT and Eddy current Testing (Basic Science/HighSchool/Electricity/eddycurrenttesting.htm)
NDT Defined (Course Material/NDTIntro/cc_intro001.htm)
NDT Methods (Course Material/NDTIntro/cc_intro001.htm)
Neutron (Basic Science/Radiography/isotopes.htm)
Neutron (Basic Science/Radiography/subatomicparticles.htm)
Neutron (Course Material/Ultrasonics/EquipmentTrans/emattexture2.htm)
Neutron Activation (Basic Science/Radiography/radiationsources/neutronact_popup.htm)
Newton's Inverse Square Law (Course Material/Radiography/Physics/inversesquare.htm)
Nonaqueous (Course Material/PenetrantTest/PTMaterials/developers.htm)
Normal Beam Inspection (Course Material/Ultrasonics/MeasurementTech/beaminspection.htm)
Normal Incidence Shear Wave Transducers (Course Material/Ultrasonics/EquipmentTrans/transducertypes.htm)
Nuclear Fission (Course Material/Radiography/Physics/nature.htm)
Nuclear Fusion (Basic Science/Radiography/radiationsources/fusion_popup.htm)
Nuclear Radiation (Basic Science/Radiography/radioactivedecay.htm)
Nuclear Reactions (Basic Science/Radiography/nuclearreactions/twoforms_nucrad_popup.htm)
Nuclear Reactors (Basic Science/Radiography/usesradioactivity.htm)
Nucleus (Basic Science/Magnetism/reviewatom/discussion004.htm)
Nucleus (Basic Science/Radiography/subatomicparticles.htm)

O
Oersted, Hans (Basic Science/Electricity/electromagnetism.htm)
Ohm’s Law (Basic Science/Electricity/ohmslaw.htm)
Ohms (Basic Science/Electricity/resistance.htm)
Ohm's Law (Course Material/EddyCurrents/Physics/currentflow.htm)
Ohm's Law (Course Material/EddyCurrents/Physics/impedance.htm)
Oils (Course Material/PenetrantTest/MethodsTech/researchoncleaning.htm)
Oscillatory Motions (Course Material/Ultrasonics/Physics/wavepropagation.htm)
Oscillatory Motions (Course Material/Ultrasonics/Physics/elasticsolids.htm)
Oscilloscope (Course Material/Ultrasonics/Introduction/history.htm)

P
Pair Production (Basic Science/Radiography/ionization/pairproduction_popup.htm)
Pair Production (PP) (Course Material/Radiography/Physics/radmatinteraction.htm)
Parabola (Basic Science/sound/reflection/discussion012.htm)
Parallel and Series Circuit (Basic Science/Electricity/seriesparallelcircuits.htm)
Parallel Circuit (Basic Science/Electricity/parallelcircuit.htm)
Particles (Course Material/MagParticle/Equipment/equipment2.htm)
Particulate Radiation (Basic Science/Radiography/radioactivedecay/twoforms_nucrad_popup.htm)
Penetrameter (Course Material/Radiography/TechCalibrations/controllingquality.htm)
Penetrant Application (Course Material/PenetrantTest/MethodsTech/application.htm)
Penetrant Brightness (Course Material/PenetrantTest/PTMaterials/colorandfluorescents.htm)
Penetrant Color (Course Material/PenetrantTest/PTMaterials/colorandfluorescents.htm)
Penetrant Dwell Time (Course Material/PenetrantTest/MethodsTech/application.htm)
Penetrant Removal (Course Material/PenetrantTest/MethodsTech/removal.htm)
Penetrant Testing (PT) (Course Material/cc_pt_index.htm)
Penetrant Testing Matl's (Course Material/PenetrantTest/PTMaterials/ptmaterials.htm)
Penetrants (Course Material/PenetrantTest/PTMaterials/penetrants.htm)
PenetrantTesting (Course Material/NDTIntro/cc_intro001.htm)
Penumbra Shadow (Course Material/Physics/geometryxrayres.htm)
Periodic Table (Basic Science/Electricity/elements.htm)
Permanent Magnets (Course Material/MagParticle/Equipment/equipment1.htm)
Permeability (Course Material/EddyCurrents/Introduction/historyofET.htm)
Phase Angle (Course Material/EddyCurrents/Physics/impedance.htm)
Phase Angle (Course Material/EddyCurrents/Instrumentation/impedanceplane.htm)
Phase Lag (Course Material/EddyCurrents/Physics/phaselag.htm)
Photodisintegraton (PD) (Course Material/Radiography/Physics/radmatinteraction.htm)
Photoelectric (PE) (Course Material/Radiography/Physics/radmatinteraction.htm)
Photoelectric Effect (Basic Science/Radiography/ionization/photoelectric_popup.htm)
Photoinductive Imaging (PI) (Course Material/EddyCurrents/Introduction/presentstateofET.htm)
Photon (Basic Science/Radiography/characterradiation.htm)
Photon (Course Material/Radiography/Physics/nature.htm)
Pierre & Marie Curie (Basic Science/Radiography/curies.htm)
Piezoelectric Element (Course Material/Ultrasonics/EquipmentTrans/characteristicspt.htm)
Piezoelectric Transducers (Course Material/Ultrasonics/EquipmentTrans/piezotransducers.htm)
Piezoelectric Transducers (Course Material/Ultrasonics/Physics/modepropagation.htm)
Piezoelectric Transducers Continued (Course Material/Ultrasonics/EquipmentTrans/characteristicspt.htm)
Pitch (Basic Science/Sound/components/pitch007.htm)
Pitch and Frequency (Basic Science/sound/frequencypitch.htm)
Planck Constant (Course Material/Radiography/Physics/comptonscattering.htm)
Plane (Course Material/Ultrasonics/Physics/attenuation.htm)
Polarization (Course Material/Ultrasonics/EquipmentTrans/ematshearwave.htm)
Porosity (Course Material/Ultrasonics/Introduction/presentstate.htm)
Positron (Basic Science/Radiography/ionization/pairproduction_popup.htm)
Potential Energy (Basic Science/Electricity/seriesparallelcircuits.htm)
Probe Scan Deviation (Course Material/EddyCurrents/ProbesAndApplication/slidingprobes.htm)
Probe Types (Course Material/EddyCurrents/ProbesAndApplication/slidingprobes.htm)
Properties of Electricity (Course Material/EddyCurrents/Physics/propertiesofelectricity.htm)
Protons (Basic Science/Radiography/subatomicparticles.htm)
Pulse-Echo Test (Basic Science/sound/pulseecho.htm)
Pulsed Eddy Current (Course Material/EddyCurrents/Introduction/presentstateofET.htm)
Pulsed Eddy Current (Course Material/EddyCurrents/AdvancedTechniques/background.htm)
Pulsed Eddy Current Tech. (Course Material/EddyCurrents/AdvancedTechniques/pulsedecinspection.htm)
Pulser-Receivers (Course Material/Ultrasonics/EquipmentTrans/pulserreceivers.htm)

Q
Quality Control of Emulsifiers (Course Material/PenetrantTest/QualityProcess/emulsifiers.htm)
Quality Control of Wash (Course Material/PenetrantTest/QualityProcess/wash.htm)
Quantum Mechanics (Course Material/Radiography/Physics/comptonscattering.htm)
Quantum Mechanics (Course Material/Radiography/Physics/kleinnishina.htm)
Quantum Theory (Basic Science/Magnetism/reviewatom/discussion004.htm)
Quench Cracks (Course Material/PenetrantTest/Principles/commonuses.htm)

R
Radian (Course Material//EddyCurrents/Physics/phaselag.htm)
Radiated Fields (Course Material/Ultrasonics/EquipmentTrans/radiatedfields.htm)
Radiation (Basic Science/Radiography/characterradiation.htm)
Radiation (Basic Science/Radiography/discoveryelements.htm)
Radiation (Basic Science/Radiography/halflife1/assessingrad_popup.htm)
Radiation (Basic Science/Radiography/interactionradmat.htm)
Radiation (Course Material/Radiography/TechCalibrations/imageconsiderations.htm)
Radiation (Uses of) (Basic Science/Radiography/usesradioactivity.htm)
Radiation Absorbed Dose (RAD) (Course Material/Radiography/Physics/radiationsafety.htm)
Radiation Pressure (Course Material/Radiography/Physics/kleinnishina.htm)
Radiation Safety (Course Material/Radiography/Physics/radiationsafety.htm)
Radiation Safey Manual (Course Material/Radiography/Physics/radiationsafety.htm)
Radiation Sources (Basic Science/Radiography/radiationsources.htm)
Radiation Quality (Course Material/Radiography/TechCalibrations/controllingquality.htm)
Radio Isotope Sources (Course Material/Radiography/EquipmentMaterials/isotopesources.htm)
Radioactive Activity (Basic Science/Radiography/halflife1/comparing_radact_popup.htm)
Radioactive Decay (Basic Science/Radiography/radiationsources/studyof_raddecay_popup.htm)
Radioactive Decay (Basic Science/Radiography/radioactivedecay.htm)
Radioactive Elements (Basic Science/Radiography/discoveryelements.htm)
Radioactive Elements (Basic Science/Radiography/discoveryrad.htm)
Radioactive Half-life (Basic Science/Radiography/halflife1.htm)
Radioactive Half-life Part (Cont.) (Basic Science/Radiography/halflife2.htm)
Radioactivity (Basic Science/Radiography/discoveryrad.htm)
Radioactivity and Radioisotopes (Basic Science/Radiography/radioactivity.htm)
Radiograph (Basic Science/Radiography/producearadiograph.htm)
Radiographic Contrast and Definition (Course Material/Radiography/TechCalibrations/imageconsiderations.htm)
Radiographic Density (Course Material/Radiography/TechCalibrations/radiographicdensity.htm)
Radiographic Film (Course Material/Radiography/EquipmentMaterials/radiographicfilm.htm)
Radiographs and Photographs (Basic Science/Radiography/radiographsphotos.htm)
Radiography (Basic Science/Radiography/radiographsphotos.htm)
Radiography (Course Material/Radiography/AdvancedTechniques/computedtomography.htm)
Radiography (Course Material/Radiography/TechCalibrations/imageconsiderations.htm)
Radiography (Basic Science/hs_rad_index.htm)
Radiography (RT) (Course Material/cc_rad_index.htm)
Radiography Testing (Course Material/NDTIntro/cc_intro001.htm)
Radioisotopes (Basic Science/Radiography/radiationsources.htm)
Radionuclides (Course Material/Radiography/Physics/nature.htm)
Rads (Course Material/Radiography/Physics/inversesquare.htm)
Rail Inspection (Course Material/Ultrasonics/SelectedApps/railinspection.htm)
Rail Inspection (AboutNDT/SelectedApplications/RailInspection.htm)
Rarefaction (Basic Science/sound/vibration/discussion002.htm)
Rarefaction (Course Material/Ultrasonics/EquipmentTrans/ematlambwave.htm)
Rayleigh Waves (Course Material/Ultrasonics/Physics/modepropagation.htm)
Real-time Radiography (Course Material/Radiography/AdvancedTechniques/realtime.htm)
Reference Standards (Course Material/EddyCurrents/ProbesAndApplication/slidingprobes.htm)
Reflection and Transmission Coefficients (Course Material/Ultrasonics/Physics/reflectiontransmission.htm)
Reflection of Sound (Basic Science/sound/reflection.htm)
Refraction & Snell's Law (Course Material/Ultrasonics/Physics/refractionsnells.htm)
Refraction (Basic Science/sound/interference/discussion010.htm)
Refraction of Sound (Basic Science/Sound/refraction.htm)
Relative Pulse-Echo Sensitivity (Course Material/Ultrasonics/EquipmentTrans/tranducertesting2.htm)
Remote Field Sensing (Course Material/EddyCurrents/AdvancedTechniques/remotefieldsensing.htm)
Removability (Course Material/PenetrantTest/PTMaterials/removability.htm)
Rems (Course Material/Radiography/Physics/inversesquare.htm)
Resistance (Basic Science/Electricity/resistance.htm)
Resistance (Course Material/EddyCurrents/Physics/propertiesofelectricity.htm)
Resistance (Course Material/EddyCurrents/Physics/currentflow.htm)
Resistivity and Electrical Conductivity Properties (GeneralResources/MaterialProperties/materialproperties.htm)
Resistors (Basic Science/Electricity/resistance.htm)
Resistors (Basic Science/Electricity/seriescircuit.htm)
Resonance (Basic Science/sound/frequencypitch/discussion008.htm)
Resonance (Course Material/Ultrasonics/EquipmentTrans/toneburst.htm)
Resonant Circuits (Course Material/EddyCurrents/Instrumentation/resonantcircuits.htm)
Resources (Resources/resources.htm)
Risk Taking (TeachingResources/ClassroomTips/Research-based Framework/risk_taking.htm)
Roentgen Equivalent Man (REM) (Course Material/Radiography/Physics/radiationsafety.htm)
Roentgen, Wilhelm Conrad (Basic Science/Radiography/discoveryxrays.htm)
Roentgen, Wilhelm Conrad (Course Material/Radiography/Introduction/history.htm)
Roentgens (Course Material/Radiography/Physics/inversesquare.htm)

S
Scanning (Course Material/EddyCurrents/AdvancedTechniques/scanning.htm)
Scanning Patterns (Course Material/EddyCurrents/ProbesAndApplication/slidingprobes.htm)
Scatter/Radiation Control (Course Material/Radiography/Physics/filters.htm)
Scattering (Course Material/Ultrasonics/Physics/attenuation.htm)
Science of NDT (Basic Science/hs_intro004.htm)
Science Related Web Sites (Teaching Resources/Classroom Tips/WebSites for Tchrs&Ss/Science_Web_Sites.htm)
Search (SiteNav/sitenavigation.htm)
Self Inductance (Course Material/EddyCurrents/Physics/mutualinductance.htm)
Self Inductance and Inductive Reactance (Course Material/EddyCurrents/Physics/selfinductance.htm)
Semi-infinite conductor (Course Material/EddyCurrents/Physics/depthcurrentdensity.htm)
Sensitivity Section (Course Material/PenetrantTest/MethodsTech/removal.htm)
Sensitometric checks (Course Material/Radiography/TechCalibrations/filmprocessing.htm)
Series and Parallel Circuits (Basic Science/Electricity/seriesparallelcircuits.htm)
Series Circuit (Basic Science/Electricity/seriescircuit.htm)
Series/Parallel Circuit (Basic Science/Electricity/seriesparallel.htm)
Shear Wave Generation (Course Material/Ultrasonics/EquipmentTrans/ematshearwave.htm)
Shear Waves (Basic Science/sound/anglebeam.htm)
Shear Waves (Basic Science/vibration/discussion002.htm)
Shielding (Course Material/Ultrasonics/EquipmentTrans/impedancematching.htm)
Signal Processing (Course Material/Ultrasonics/MeasurementTech/signalprocessing.htm)
Signal-to-noise (Course Material/Ultrasonics/CalibrationMeth/grainnoise.htm)
Signal-to-noise Ratio (Course Material/Ultrasonics/MeasurementTech/flawreconstruction.htm)
Signal-to-noise Ratio (Course Material/Ultrasonics/Physics/signaltonoise.htm)
Sioux City Airline Crash Video (Basic Science/hs_intro003.htm)
Site Navigation (SiteNav/sitenavigation.htm)
Sliding Probes (Course Material/EddyCurrents/ProbesAndApplication/slidingprobes.htm)
Sliding Probes, Adjustable (Course Material/EddyCurrents/ProbesAndApplication/slidingprobes.htm)
Sliding Probes, Fixed (Course Material/EddyCurrents/ProbesAndApplication/slidingprobes.htm)
Snell’s Law (GeneralResources/Calculator/calculator.htm)
Snell's Law (Course Material/Ultrasonics/Physics/refractionsnells.htm)
Solenoid (Basic Science/Electricity/electromagnetism.htm)
Sonar (Course Material/Ultrasonics/Introduction/history.htm)
Sound Barrier (Basic Science/sound/speedinair/discussion003.htm)
Sound Field Measurements (Course Material/Ultrasonics/EquipmentTrans/tranducertesting2.htm)
Sound Introduction (Basic Science/Sound/introsound.htm)
Sound Table of Contents (BasicScience/hs_sound_index.htm)
Sound Wave Interference (Basic Science/sound/interference.htm)
Sound Wave Propagation (Course Material/Ultrasonics/Physics/modepropagation.htm)
Specific Activity (Basic Science/Radiography/halflife1/comparing_radact_popup.htm)
Specific Gravity (Course Material/PenetrantTest/PTMaterials/specificgravity.htm)
Spectrum (Course Material/Ultrasonics/MeasurementTech/spreadspectrum.htm)
Spectrum Analyzer (Course Material/Ultrasonics/EquipmentTrans/pulserreceivers.htm)
Speed of Sound and Temperature (Basic Science/Sound/tempandspeed.htm)
Speed of Sound in Air (Basic Science/sound/speedinair.htm)
Speed of Sound in Other Materials (Basic Science/sound/speedinmaterials.htm)
Spin (Course Material/Radiography/Physics/kleinnishina.htm)
Spread Spectrum (Course Material/Ultrasonics/MeasurementTech/spreadspectrum.htm)
Stability of Penetrants (Course Material//PenetrantTest/PTMaterials/stabilityofpenetrants.htm)
Stable and Unstable Atoms (Basic Science/Radiography/stableunstableatoms.htm)
Stain Ratio (Course Material/Ultrasonics/EquipmentTrans/emattexture1.htm)
Standards (GeneralResources/Standards/standards.htm)
Stepless Gate (Course Material/Ultrasonics/EquipmentTrans/pulserreceivers.htm)
Stress Measurement (Course Material/Ultrasonics/EquipmentTrans/ematstess.htm)
Subatomic Particles (Basic Science/Radiography/subatomicparticles.htm)
Subionization (Basic Science/Radiography/ionization/subionization_popup.htm)
Superheterodyne Receiver (Course Material/Ultrasonics/EquipmentTrans/toneburst.htm)
Surface Breaking Cracks (Course Material/EddyCurrents/ProbesAndApplication/breakingcracks.htm)
Surface Energy (Course Material/PenetrantTest/PTMaterials/surfaceenergy.htm)
Surface Waves (Basic Science/vibration/discussion002.htm)
Swept Frequency Tech. (Course Material/EddyCurrents/AdvancedTechniques/sweptfrequency.htm)

T
Table of Contents (SiteNav/sitenavigation/Table of Contents.htm)
Technician vs Engineer (Careers/TechvsEng.htm)
Temperature and Speed of Sound (Basic Science/Sound/tempandspeed.htm)
Texture Measurement I (Course Material/Ultrasonics/EquipmentTrans/emattexture1.htm)
Texture Measurement II (Course Material/Ultrasonics/EquipmentTrans/emattexture2.htm)
Thickness of Coatings (Course Material/EddyCurrents/ProbesAndApplication/thicknessmeasurements2.htm)
Thickness of Thin Mat'ls (Course Material/EddyCurrents/ProbesAndApplication/thicknessmeasurements.htm)
Thompson-Gray Model (Course Material/Ultrasonics/CalibrationMeth/thompsongray.htm)
Thomson Scattering (R) (Course Material/Radiography/Physics/radmatinteraction.htm)
Thulium (Tm 170) (Course Material/Physics/decayrate.htm)
Time Response (Course Material/Ultrasonics/EquipmentTrans/tranducertesting2.htm)
Tomography (Course Material/Radiography/AdvancedTechniques/computedtomography.htm)
Tone (Basic Science/Sound/components/tone007.htm)
Tone Burst Generators (Course Material/Ultrasonics/EquipmentTrans/toneburst.htm)
Tracers (Basic Science/Radiography/usesradioactivity.htm)
Tracers (Course Material/Radiography/Physics/carbondating.htm)
Transducers (Course Material/Ultrasonics/Introduction/history.htm)
Tranducer Modeling (Course Material/Ultrasonics/EquipmentTrans/transducermodeling.htm)
Tranducer Testing I (Course Material/Ultrasonics/EquipmentTrans/tranducertesting1.htm)
Tranducer Testing II (Course Material/Ultrasonics/EquipmentTrans/tranducertesting2.htm)
Tranducer Types (Course Material/Ultrasonics/EquipmentTrans/transducertypes.htm)
Tranducers Beam Spread (Course Material/Ultrasonics/EquipmentTrans/beamspread.htm)
Transducer (Course Material/EquipmentTrans/characteristicspt.htm)
Transformer (Basic Science/Electricity/electroinduction/transformerpopup.htm)
Transformers (Basic Science/Radiography/xraygenerators.htm)
Transmutation (Basic Science/Radiography/radioactivedecay.htm)
Transmutation (Basic Science/Radiography/radioactivity.htm)
Transverse or Shear Waves (Course Material/Ultrasonics/Physics/wavepropagation.htm)
Tubing (Absolute vs. Diff.) (Course Material/EddyCurrents/ProbesAndApplication/differentialvsabsolute.htm)
Tungsten (Basic Science/Radiography/xraygenerators.htm)

U
Ultrasonic Simulation (UTSIM) (Course Material/Ultrasonics/CalibrationMeth/utsim.htm)
Ultrasonic Testing (Course Material/NDTIntro/cc_intro001.htm)
Ultrasonic Testing (Present State of) (Course Material/Ultrasonics/Introduction/presentstate.htm)
Ultrasonic Testing (UT) (Course Material/cc_ut_index.htm)
Ultrasonic Waves (Basic Science/Sound/components/pitch007.htm)
Ultrasound and Ultrasonic Testing (Basic Science/sound/ultrasound.htm)
Ultraviolet Light (Course Material/PenetrantTest/Introduction/history.htm)
Ultraviolet Light Safety (Course Material/PenetrantTest/InspectionVariables/healthandsafety.htm)
Unstable Atom (Basic Science/Radiography/stableunstableatoms.htm)
Unstable Nucleus (Basic Science/Radiography/radioactivity.htm)
UT Material Properties (Course Material/Ultrasonics/Reference%20Information/matproperties.htm)
UT References/Resources (Course Material/Ultrasonics/Reference%20Information/references.htm)
UT References/Standards (Course Materials/Ultrasonics/CalibrationMeth/standreferences.htm)

V
Valence Shell (Basic Science/Electricity/valenceshell.htm)
Velocity (Course Material/Ultrasonics/Physics/acousticplane.htm)
Velocity Measurements (Course Material/Ultrasonics/EquipmentTrans/ematvelocity.htm)
Velocity Measurements (Course Material/Ultrasonics/MeasurementTech/velocitymeasure.htm)
Vibration (Basic Science/Sound/vibration.htm)
Vibrational Motion (Course Material/Ultrasonics/Physics/wavepropagation.htm)
Viewing Radiographs (Course Material/Radiography/TechCalibrations/viewingradiographs.htm)
Viscosity (Course Material/PenetrantTest/PTMaterials/viscosity.htm)
Visual Acuity (Course Material/PenetrantTest/Introduction/visualacuity.htm)
Volt (Basic Science/Electricity/voltage/thevoltpopup.htm)
Volt (Course Material/EddyCurrents/Physics/propertiesofelectricity.htm)
Voltage (Basic Science/Electricity/voltage.htm)
Voltage (Course Material/EddyCurrents/Physics/currentflow.htm)

W
Wash Method Variables (Course Material/PenetrantTest/QualityProcess/wash.htm)
Water Soluable (Course Material/PenetrantTest/PTMaterials/developers.htm)
Water Suspendible (Course Material/PenetrantTest/PTMaterials/developers.htm)
Watt-second (Basic Science/Electricity/voltage/thevoltpopup.htm)
Watt-second (Course Material/EddyCurrents/Physics/propertiesofelectricity.htm)
Wave Propagation (Course Material/Ultrasonics/Physics/wavepropagation.htm)
Wave Interference (Basic Science/sound/interference/discussion010.htm)
Wavelength (Basic Science/Radiography/characterradiation/wavelength_popup.htm)
Wavelength (Basic Science/vibration/discussion002.htm)
Wavelength (Course Material/Ultrasonics/Physics/acousticplane.htm)
Wavelength/Flaw Detection (Course Material/Ultrasonics/Physics/defectdetect.htm)
Weldments (Course Material/Ultrasonics/SelectedApps/weldments.htm)
What do NDTers Do? (Careers/careers.htm)

X
X-Rays (Basic Science/Radiography/discoveryxrays.htm)
X-Rays (Basic Science/Radiography/introxrays.htm)
X-Ray Generation (Basic Science/Radiography/xraygeneration.htm)
X-Ray Generators (Basic Science/Radiography/xraygenerators.htm)
X-Ray Inspection Simulation (XRSIM) (Course Material/Radiography/AdvancedTechniques/xrsim.htm)
X-ray Sources (Course Material/Radiography/EquipmentMaterials/xraysources.htm)
X-Rays & Gamma Rays Table of Contents (Basic Science/hs_rad_index.htm)

Y

Ytterbium (Yb169) (Course Material/Physics/decayrate.htm)

Z