Dosimetry - Study guides, Class notes & Summaries

GXMO VOCABULARY/TERMINOLOGY QUESTIONS AND ANSWERS WITH SOLUTIONS 2024 artifacts - ANSWER an erroneous portion of an image or tracing that does not accurately represent the subject of the image or measurement being recorded atomic structure - ANSWER * represents the number of protons in the nucleus of an atom attenuation - ANSWER absorption of the x-ray beam in matter, usually the human body automatic exposure control (AEC) - ANSWER an electronic circuit within the x-ray machine that au...

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...

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...

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 ...