Safety (Radiation Physics and
Radiobiology) for ARRT Boards 2025-
2026 Get it 100% Correct Answers
x-ray production characteristics - 🧠 ANSWER ✔✔source of free electrons,
acceleration of electrons, focusing of electrons, deceleration of electrons
x-ray production - 🧠 ANSWER ✔✔occurs when current inside the xray tube
flows from the cathode and is suddenly stopped at the anode
bremsstrahlung - 🧠 ANSWER ✔✔a projectile electron misses outer shell
electrons in the target and moves in close to the nucleus (braking)
characteristic - 🧠 ANSWER ✔✔a projectile electron collides with an inner
shell electron of a target atom and creates a hole. Outer shell electron falls
into space.
characteristic x-rays are produced at kVp levels greater than? - 🧠 ANSWER
✔✔70
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
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, frequency - 🧠 ANSWER ✔✔number of wavelengths passing a given point
per unit time; measured in hertz Hz
wavelength - 🧠 ANSWER ✔✔distance between successive crests of wave
quality - 🧠 ANSWER ✔✔kVp (strength of x-ray)
quantity - 🧠 ANSWER ✔✔mA (amount of x-ray)
primary radiation - 🧠 ANSWER ✔✔radiation exiting the x-ray tube
remnant(exit) - 🧠 ANSWER ✔✔x-rays that emerge from the patient and
strike the image receptor
inverse square law - 🧠 ANSWER ✔✔law that governs the intensity of x
radiation; states that intensity of the xray beam is inversely proportional to
the square of the distance between the source of the x-rays and the object
Fundamental Properties - 🧠 ANSWER ✔✔ROENTGEN RAYS
Compton effect - 🧠 ANSWER ✔✔incoming xray photon strikes loosely
bound outer shell electron, photon transfers part of energy to electron,
electron removed from orbit, able to ionize other atoms, photon has less
energy than before
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
2
Radiobiology) for ARRT Boards 2025-
2026 Get it 100% Correct Answers
x-ray production characteristics - 🧠 ANSWER ✔✔source of free electrons,
acceleration of electrons, focusing of electrons, deceleration of electrons
x-ray production - 🧠 ANSWER ✔✔occurs when current inside the xray tube
flows from the cathode and is suddenly stopped at the anode
bremsstrahlung - 🧠 ANSWER ✔✔a projectile electron misses outer shell
electrons in the target and moves in close to the nucleus (braking)
characteristic - 🧠 ANSWER ✔✔a projectile electron collides with an inner
shell electron of a target atom and creates a hole. Outer shell electron falls
into space.
characteristic x-rays are produced at kVp levels greater than? - 🧠 ANSWER
✔✔70
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
1
, frequency - 🧠 ANSWER ✔✔number of wavelengths passing a given point
per unit time; measured in hertz Hz
wavelength - 🧠 ANSWER ✔✔distance between successive crests of wave
quality - 🧠 ANSWER ✔✔kVp (strength of x-ray)
quantity - 🧠 ANSWER ✔✔mA (amount of x-ray)
primary radiation - 🧠 ANSWER ✔✔radiation exiting the x-ray tube
remnant(exit) - 🧠 ANSWER ✔✔x-rays that emerge from the patient and
strike the image receptor
inverse square law - 🧠 ANSWER ✔✔law that governs the intensity of x
radiation; states that intensity of the xray beam is inversely proportional to
the square of the distance between the source of the x-rays and the object
Fundamental Properties - 🧠 ANSWER ✔✔ROENTGEN RAYS
Compton effect - 🧠 ANSWER ✔✔incoming xray photon strikes loosely
bound outer shell electron, photon transfers part of energy to electron,
electron removed from orbit, able to ionize other atoms, photon has less
energy than before
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
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