Dosimetry - Study guides, Class notes & Summaries

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

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

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 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 ...

Dosimetry Exam 2 Questions with complete solution 2023isocentric technique means the same ____________________ --> when the isocenter is placed in the ____________________, all motions remain centered on ____________________ in the patient - correct answer center, center of the target, target once patient is setup, the patient is not ____________________ --> only the ____________________ moves --> advantage of ____________________ technique and can result in less _________________...

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 ...

Dosimetry Exam Question and answers rated A+ 2023A patient is lying supine and the physician wants the field moved cephalad 1cm. What direction is the table moved? - correct answer out "Smearing" or moving junctions and/or gaps between fields is called: - correct answer feathering Simulation with a fluoroscope is a: - correct answer dynamic study What type of setup is preferred? - correct answer isocentric SAD

Dosimetry Final Exam Question and answers 2023 verified to pass