Dosimetry - Study guides, Class notes & Summaries

Mock Exam Dosimetry Question and answers 100% correct 2023 Cells are most resistant in which phase? - correct answer S With regard to Energy, Depth, Field Size, and SSD; Do PDD's increase or decrease? - correct answer increase, decrease, increase, increase Which is the resting phase after synthesis (S), but before mitosis (M)? - correct answer G2 The cummulative effective dose limit for a radiation worker is..... - correct answer 10 mSv x age (years) A byte is a group ...

Dosimetry Board Review Question and answers rated A+ 2023 Neutrons - correct answer no charge; Rest Mass = 939.6 MeV; 1800 x size of electron Protons - correct answer positive charge; Rest Mass = 938.3 MeV; 1800 x size of electron Electrons - correct answer negative charge; Rest Mass = 0.511 MeV; Small Atomic Mass Unit - correct answer 1/12 the mass of a carbon-12 atom; 1.66 x 10^-27 kg Atomic Symbol Notation - correct answer X = element symbol A = Mass Number; # pro...

DOSIMETRY 2 FINAL Question and answers already passed 2023Which of the following is not one of the "major characteristics of electron beams" discussed early in the electron therapy lecture? - correct answer deep dmax depth resulting in uniform dose to deep structures such as prostate and cervix This term is defined as "the rate of energy loss per gram per centimeter squared - correct answer mass stopping power Electrons scattered with enough energy to cause further ionization and ...

Medical Dosimetry Certification Study Guide Question and answers already passed 2023an alpha particle is identical to a helium nucleus with a mass number of _____ and electrostatic charge of _____ - correct answer 4 and +2 alpha emission changes the identity of e radionuclide. T or F - correct answer true 226 RA is a _____ emitter - correct answer alpha 226 RA is a _____ emitter - correct answer alpha - correct answer

Mock Exam Dosimetry Question and answers 100% correct 2023

It is discovered that a patient receiving 400 cGys daily has been given 25 fractions at 77 cm SSD instead of 80 cm SSD. Instead of the prescribed 10,000 cGy, the patient received: a. 9,264 cGy b. 9,628 cGy c. 10.390 cGy d. 10,794 cGy - d. 10,794 cGy If treating a supine patient isocentrically and assuming there is no table sag, given a tabletop (Z) of 13.5cm, an anterior SSD of 84cm, and a 100cm SAD machine, the expected posterior SSD would be? a. 86.5 cm b. 84 cm c. 97.5 cm d. 103.5 ...

Which of the following is not one of the "major characteristics of electron beams" discussed early in the electron therapy lecture? - deep dmax depth resulting in uniform dose to deep structures such as prostate and cervix This term is defined as "the rate of energy loss per gram per centimeter squared - mass stopping power Electrons scattered with enough energy to cause further ionization and excitations and other Adams can be referred to as: - delta rays The rate of energy loss for e...

Dosimetry Final Exam Question and answers correctly solved 2023What are the three components of the penumbra? - correct answer geometry, transmission, and lateral scattering Geometric Penumbra - correct answer is due to the finite source size. It is more of a concern in Co-60 machines where the source is between 1 and 2 cm in size. Transmission Penumbra - correct answer is due to the transmission of photons through the primary, secondary, or tertiary collimators

Dosimetry 1 Exam 2 Question and answers rated A+ 2023TREATMENT PLANNING-def: - correct answer planning the treatment What is considered treatment planning? - correct answer anything that happens up until the beam on of the first day of treatment. (ex. block cutting, sim, set up, tattooing, consultation) One must take several things into consideration when planning the treatment volume and doses: - correct answer 1. History and pattern of the disease 2. Intent (palliative or cur...

It is discovered that a patient receiving 400 cGys daily has been given 25 fractions at 77 cm SSD instead of 80 cm SSD. Instead of the prescribed 10,000 cGy, the patient received: a. 9,264 cGy b. 9,628 cGy c. 10.390 cGy d. 10,794 cGy - d. 10,794 cGy If treating a supine patient isocentrically and assuming there is no table sag, given a tabletop (Z) of 13.5cm, an anterior SSD of 84cm, and a 100cm SAD machine, the expected posterior SSD would be? a. 86.5 cm b. 84 cm c. 97.5 cm d. 103.5 ...