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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. 1 Sv = ___ rem

2. J/kg is given the special name of_____

3. The threshold energy (in MeV) for paraproduction in the vicinity of an electron is_____

4. An electron beam therapy, the dose prescription point is generally______

5. PDD increases with

6. The important QA test associated with the light field are_____

7. PDD, for use in SSD type of treatments, is normalized to______

8. Acceptance testing and commissioning of a TPS is the responsibility of______

9. The organs at risk, in brachytherapy gynecological treatments are______

10. A cell survival curve is characterized by quasi-threshold dose, Dq, extrapolation number, n, and mean lethal dose, D0. define these characteristics...

11. An AP radiograph displays anatomical structures in_____

12. What is defined as the kinetic energy released per unit mass, in an infantissimal volume, around that point by IDIR (indirectly ionizing radiation)?

13. dose distribution in multiple levels may be necessary when the following area is treated:

14. When the excited state of the daughter nuclide is having a long half-life the nuclides behave as _____

15. Megavoltage photon interactions can release electrons of _____

16. partial kidney shielding is best accomplished by means of_____

17. What is the SI unit to radioactivity

18. The mean energy of the electron beam, E0, can be determined, fairly accurately, from the parameter______

19. Why is a trimmer bar attached to the collimator?

20. What is the equilibrium wall thickness required for the chamber used for beam up measurements, at 60 Co energy?

21. The length of the target volume to be treated with an interstitial implant of iridium wire is 4.5 cm. which active length should be used?

22. When using a pair of wedged treatment fields, the wedge angle is much larger than the ideal one. The interior region of overlap will lead to______

23. What is the effect of increasing the matrix size of an image?

24. PTV - CTV margin_______

25. What information can one byte of information content represent?