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Medical Dosimetry Certification Prep Revision
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Medical Dosimetry Certification is a professional credential, primarily administered by the Medical Dosimetrist Certification Board (MDCB), that validates a practitioner's expertise in planning cancer radiation treatments. It requires passing a rigorous exam after completing an accredited education program, ensuring competency in dose calculations, treatment planning, and safety. Role of a Certified Medical Dosimetrist As part of the radiation oncology team (alongside doctors and physicists), they determine the best beam arrangements and radiation doses to destroy tumors while sparing... Show more
Medical Dosimetry Certification Prep Revision
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25 Questions

1. sometimes, adjacent POP APPA treatment fields are needed in this case,_____

2. The pencil electron beam coming out of a wave guide is spread into larger field sizes, in a clinical accelerator using:

3. The kVp set on a simulator can be measured using a_____

4. for a CT image, aspect ratio is a calibration for the width and height of an image on the monitor and is given by_____

5. radiation risk to an organ depends on______

6. Isodose curves give the dose distribution in a _____ plane

7. Electron beams have

8. for treatment of head and neck cases_____

9. The scatter dose that any given point in a phantom or patient can be determined_______

10. When radiation interaction occur in a cell, the cell death occurs because of_____

11. What are the advantages of manual afterloading?

12. What type of target is used in high-energy linear accelerator?

13. Which image is used for online treatment verification?

14. When two adjacent electron fields abut on the skin or at a depth, there is a possibility of overdosing of regions around the junction because of_______

15. In AAPM TG-51 protocol, beam quality for electrons is specified by_____

16. in a constant SSD, three field technique with the three fields equally weighted, the dose at the input ports due to the three fields is

17. PDD is normalized at:

18. A breast board is used for the following purposes:
to bring the arm above the shoulders and out of the lateral field

19. By increasing the distance between a person and a point source of radiation by a factor of three, the exposure rate will______

20. For clinical dosimetry the accelerator photon beam calibration is carried out_____

21. The tolerances for simulator QA must be at least as stringent as that of the accelerator because______

22. can a CT scan provide functional information?

23. While treating pelvis with parallel opposed fields a ______ beam is preferable to a _______ beam, because peripheral dose is larger for a _____ beam

24. energy losses and radiative collisions, when electrons are stopping in medium, very as_____

25. Isodose distributions, for commissioning purposes, are usually measured using______

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