Question 1: Detectors that are capable to provide real-time in vivo dosimetry data include: |
Reference: | Mijnheer B, Beddar S, Izewska J, Reft C. Vision 20/20 Article: In vivo dosimetry in external beam radiotherapy. Med Phys 40(7):070903 (19 pages), 7/2013. |
Choice A: | MOSFETS, PSDs, OSLDs, TLDs and diodes. |
Choice B: | MOSFETS, PSDs, EPIDs and radiochromic films. |
Choice C: | MOSFETS, PSDs, EPIDS and diodes. |
Choice D: | OSLDs, PSDs, EPIDS and RPLDs. |
Choice E: | C and D. |
Question 2: The detectors that are advantageous with regards to energy dependence are:
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Reference: | Tanderup K, Beddar S, Andersen CE, Kertzscher G, Cygler JE. Vision 20/20 Article: In Vivo Dosimetry in Brachytherapy. Med Phys 40(7):070902 (15 pages), 7/2013. |
Choice A: | PSDs, MOSFETS, TLDs and diodes. |
Choice B: | TLDS, MOSFETs and Alanine. |
Choice C: | PSDs, OSLDs, diodes. |
Choice D: | PSDs, TLDs and Alanine. |
Question 3: Uncertainties in the exact location of the distal range of the proton beam arise from: |
Reference: | Paganetti, H, Range uncertainties in proton therapy and the role of Monte Carlo simulations, Phys. Med. Biol. 57 (2012) R99-R117. |
Choice A: | Patient setup. |
Choice B: | Prescribed fraction dose. |
Choice C: | Spread Out Bragg Peaks width. |
Choice D: | Temperature and pressure. |
Question 4: Which is not a method of in vivo range verification for proton therapy: |
Reference: | Knopf and Lomax. In vivo proton range verification: a review, Phys, Med. Biol. 58 (2013) R131-R160. |
Choice A: | Proton Radiography. |
Choice B: | Prompt gamma imaging. |
Choice C: | Post treatment MRI. |
Choice D: | Optical tomography. |
Choice E: | Online PET imaging. |
Question 5: Brachytherapy in vivo dosimetry uncertainties are normally most influenced by: |
Reference: | Tanderup K, Beddar S, Andersen CE, Kertzscher G, Cygler JE. Vision 20/20 Article: In Vivo Dosimetry in Brachytherapy. Med Phys 40(7):070902 (15 pages), 7/2013. |
Choice A: | Energy dependence of the detector. |
Choice B: | Temperature dependence of the detector. |
Choice C: | Calibration uncertainties. |
Choice D: | Uncertainty of detector position. |
Question 6: Which of the following is the most frequent source of errors in brachytherapy:
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Reference: | Reports by the United States Nuclear Regulatory Commission (http://www.nrc.gov/reading-rm/doc-collections/nuregs/staff/sr0090/).
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Choice A: | Human errors during treatment planning and patient set-up. |
Choice B: | Afterloader malfunction. |
Choice C: | Failures in treatment planning commissioning. |