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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. A positron is identical to an electron in all respects except it is ____

2. The kV X-ray unit used in OrthoVoltage therapy must have a target that _____

3. Tangential parallel opposed fields are mostly used to treat______

4. Checksum utility of TPS_____
ensures that the system data have not been corrupted

5. other than bremsstrahlung X-ray what other X-rays are produced in the target?

6. external exposure can be controlled by______

7. The side of an equivalent square field of a circular field of diameter capital D is approximately given by_____

8. PTV or planning target volume

9. When cutouts are used to shape electron fields, cut out factors must be determined for each cut out for accurate dosimetry. however the output variation is not very significant if the______

10. conformal therapy techniques can_____

11. define the dose rate specifications for MDR

12. Acceptance tests are carried out to ensure that_____

13. While making ionization measurements, it is important to check for____

14. field placement errors, during patient setup, arise as a result of_____

15. A source movement register must be maintained in order to_____

16. To control safety and security of sources:
the source storage facility must be under the control of an RSO

17. Isodose distribution depends on:

18. for photoelectric absorption to take place, the gamma energy should be_____

19. in parallel opposed field treatment, toast uniformity along the central axis improves with

20. A CT scan provides the patients anatomical information existing in the______

21. The monitor used in a linac to control treatment duration must be checked for______

22. What is the PDD for the following beam qualities? (10cm x 10cm field, 10cm depth; SSD=80 cm for 60Co and 100cm for accelerator photon beams)

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

24. A circular field and a square field are considered equivalent if they have______

25. The SI unit of kerma is_____