Part -1:
1. Describe X-ray tube operation. Discuss principal components (i.e. cathode, anode, X-ray tube insert, X-ray tube housing).
2. Explain the inverse linear relationship between the number and energy of X-rays produces as seen in an unfiltered, bremsstrahlung spectrum.
3. Explain why low energy X-rays are either not present or lowered in probability in a filtered bremsstrahlung spectrum.
Part -2:
1. Explain why attenuation of lower-energy photons is greater than higher-energy photons.
2. Explain how a small lead collimator reduces off-focal radiation.
3. Explain the concept of beam filtration or beam hardening.
4. Define the following characteristics of the output of an X-Ray system: Quality, Quantity, Exposure, and Production Efficiency.
5. Explain the following equation:
5. Explain the following equation:
IAt=10-1
IAt = NumberofPhotonsAttenuated (A bsorbedorScattered)
10 = Incident (Original) NumberofPhotonsinaBeam
I = Numberof PhotonsPenetratingaThinSlabofMatter
6. Derive:
I At= f cn(I0,μ,d)
10 = Numberof PhotonsinaBeamBe foreAttenuation
μ= LinearAttenuationCoe f ficient
d = PathLength (TThroughanAttenuatingM aterial)