Oral Exam Prompt: Treatment Machines and Imaging 11
Premium Membership Required
Log In or Register today for access to the full library of ABR study material.
4 Comments
Leave a Comment
You must be logged in to post a comment.
Premium Membership Required
Log In or Register today for access to the full library of ABR study material.
You must be logged in to post a comment.
“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.
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.
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.
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.