1. thadhoward on March 30, 2022 at 8:45 am

    “The efficiency of Bremsstrahlung production for an MV photon beam is only about 1%.” …The efficiency of bremstrahlung for electrons in MV range is closer to 10-20%. 1% efficiency is more accurate for kV tubes.

    • Max (editor) on March 30, 2022 at 9:57 am

      Thank you for the correction. Kahn’s Physics of Radiation Therapy (4th edition) has 30-95% listed [chapter 3, pg. 31] which is what we have in our section on Bremsstrahlung. I will be updating the solution shortly.

  2. kadhikary on July 16, 2022 at 3:49 pm

    Would you please explain MU chamber in detail? An answer given here is very informative however it would not enough to cover 5 minute questions.

    • Max (editor) on July 19, 2022 at 2:53 pm

      Hi Kadhikary,

      The 5 minute time refers to prompt plus follow-up. It’s possible that you would be asked details beyond this but generally questioning doesn’t go too in depth.

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