Comment on two discussion.

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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.

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:

𝐼𝐴𝑡 = 𝐼0 −𝐼

𝐼𝐴𝑡 = 𝑁𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑃ℎ𝑜𝑡𝑜𝑛𝑠 𝐴𝑡𝑡𝑒𝑛𝑢𝑎𝑡𝑒𝑑 (𝐴𝑏𝑠𝑜𝑟𝑏𝑒𝑑 𝑜𝑟 𝑆𝑐𝑎𝑡𝑡𝑒𝑟𝑒𝑑)

𝐼0 = 𝐼𝑛𝑐𝑖𝑑𝑒𝑛𝑡 (𝑂𝑟𝑖𝑔𝑖𝑛𝑎𝑙) 𝑁𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑃ℎ𝑜𝑡𝑜𝑛𝑠 𝑖𝑛 𝑎 𝐵𝑒𝑎𝑚

𝐼 = 𝑁𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑃ℎ𝑜𝑡𝑜𝑛𝑠 𝑃𝑒𝑛𝑒𝑡𝑟𝑎𝑡𝑖𝑛𝑔 𝑎 𝑇ℎ𝑖𝑛 𝑆𝑙𝑎𝑏 𝑜𝑓 𝑀𝑎𝑡𝑡𝑒𝑟

6. Derive:

𝐼𝐴𝑡 = 𝑓𝑐𝑛(𝐼0,𝜇,𝑑)

𝐼0 = 𝑁𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑃ℎ𝑜𝑡𝑜𝑛𝑠 𝑖𝑛 𝑎 𝐵𝑒𝑎𝑚 𝐵𝑒𝑓𝑜𝑟𝑒 𝐴𝑡𝑡𝑒𝑛𝑢𝑎𝑡𝑖𝑜𝑛

𝜇 = 𝐿𝑖𝑛𝑒𝑎𝑟 𝐴𝑡𝑡𝑒𝑛𝑢𝑎𝑡𝑖𝑜𝑛 𝐶𝑜𝑒𝑓𝑓𝑖𝑐𝑖𝑒𝑛𝑡