Radiation Dosimetry Exam Actual
Questions and Answers 2026
Acronym used for remembering units of radiation. -
correct answer ✅R - radioactivity
E - exposure
A - absorbed dose
D - dose equivalent
What is radioactivity? -
correct answer ✅The amount of ionizing radiation released by a
material. Emits: alpha, beta, gamma, x-ray, and neutron.
Quantity of radioactive material is expressed in
terms of its __________? -
correct answer ✅radioactivity
The amount of radiation traveling through the air is ________? -
correct answer ✅Exposure which is measured in Roentgen (R) or
Coulomb/kilogram.
The amount of radiation absorbed by an object or person is called
________? -
correct answer ✅absorbed dose
, Radiation Dosimetry Exam Actual
Questions and Answers 2026
U.S. units is rad
S.I units is Gy
Combines the amount of radiation absorbed and
the medical effects of that type of radiation. -
correct answer ✅Dose Equivalent
- Beta and Gamma radiation
• Dose equivalent = Absorbed dose
- Alpha and Neutron radiation
• Dose equivalent > Absorbed dose
- More damaging to the human body
What is the U.S. unit of measurement for effective dose? -
correct answer ✅Roentgen Equivalent Man (rem). Where 1 rem =
0.01 Sv
What is the SI unit of measurement for effective dose? -
correct answer ✅Sievert (Sv). Where 1 Sievert = 100 rem
Biological dose equivalents are commonly
Questions and Answers 2026
Acronym used for remembering units of radiation. -
correct answer ✅R - radioactivity
E - exposure
A - absorbed dose
D - dose equivalent
What is radioactivity? -
correct answer ✅The amount of ionizing radiation released by a
material. Emits: alpha, beta, gamma, x-ray, and neutron.
Quantity of radioactive material is expressed in
terms of its __________? -
correct answer ✅radioactivity
The amount of radiation traveling through the air is ________? -
correct answer ✅Exposure which is measured in Roentgen (R) or
Coulomb/kilogram.
The amount of radiation absorbed by an object or person is called
________? -
correct answer ✅absorbed dose
, Radiation Dosimetry Exam Actual
Questions and Answers 2026
U.S. units is rad
S.I units is Gy
Combines the amount of radiation absorbed and
the medical effects of that type of radiation. -
correct answer ✅Dose Equivalent
- Beta and Gamma radiation
• Dose equivalent = Absorbed dose
- Alpha and Neutron radiation
• Dose equivalent > Absorbed dose
- More damaging to the human body
What is the U.S. unit of measurement for effective dose? -
correct answer ✅Roentgen Equivalent Man (rem). Where 1 rem =
0.01 Sv
What is the SI unit of measurement for effective dose? -
correct answer ✅Sievert (Sv). Where 1 Sievert = 100 rem
Biological dose equivalents are commonly
