Dosimetry - Study guides, Class notes & Summaries

An in depth summary of the "Biomedical Imaging (BMs23 course)". This summary contains all material discussed in the course and you should easily pass the exam using this. In addition, this summary can be used outside this course for a clear and complete description of MRI, ultrasound, PET, SPECT, X-ray, CT, and mammography, as well as the mechanisms behind them. See the content list for the complete overview. Some important concepts that are described are: fluorescence, tomosynthesis, t1, t2, t2...

LRA 110 Final Exam Questions and Answers Rated A+ x rays were discovered ? November 8, 1895 by Wilhelm Conrad Roentgen the first radiograph produced by Dr. Roentgen was of His wife's hand radiation burn resulting from excessive exposure to xrays common among early patients and operators of xray equipment a delayed reaction to excesssive xray exposure acute radiodermatitis Watt is the unit of measure of power energy in a stored state is potential energy energy being expended? potential ener...

MOCK EXAM DOSIMETRY 2024 QUESTIONS WITH COMPLETE SOLUTIONS!!

Cells are most resistant in which phase? - S With regard to Energy, Depth, Field Size, and SSD; Do PDD's increase or decrease? - increase, decrease, increase, increase Which is the resting phase after synthesis (S), but before mitosis (M)? - G2 The cummulative effective dose limit for a radiation worker is..... - 10 mSv x age (years) A byte is a group of..... - 8 bits A patient has an interstitial Ir-192 implant. The dose rate is found to be 60 mrem/hr at 1 m. A nurse taking care of the ...

What are the three components of the penumbra? - geometry, transmission, and lateral scattering Geometric Penumbra - 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 - is due to the transmission of photons through the primary, secondary, or tertiary collimators Lateral Scattering - is the scatters from the irradiated volume at the field edges Physical Penumbra - is a combination of the geometri...

Cells are most resistant in which phase? - S With regard to Energy, Depth, Field Size, and SSD; Do PDD's increase or decrease? - increase, decrease, increase, increase Which is the resting phase after synthesis (S), but before mitosis (M)? - G2 The cummulative effective dose limit for a radiation worker is..... - 10 mSv x age (years) A byte is a group of..... - 8 bits A patient has an interstitial Ir-192 implant. The dose rate is found to be 60 mrem/hr at 1 m. A nurse taking care of the ...

What are the three components of the penumbra? - geometry, transmission, and lateral scattering Geometric Penumbra - 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 - is due to the transmission of photons through the primary, secondary, or tertiary collimators Lateral Scattering - is the scatters from the irradiated volume at the field edges Physical Penumbra - is a combination of the geometri...

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 ...

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...