IBHRE CEPS Radiology Exam with
complete solutions 2025/2026
Non-ionizing radiation - ANSWER-electromagnetic waves given off by the sun and
various electronic devices
Most common form of radiation
UV light, visible light, infrared radiation, RF radiation, microwaves - ANSWER-
Examples of non-ionizing radiation
Ionizing Radiation - ANSWER-radiation given off by the sun, radioactive
materials, and high energy electronic devices (X-ray, etc)
- enough energy to cause atoms to lose electrons and become charged
Alpha particles, beta particles, gamma rays, X-rays - ANSWER-Examples of
ionizing radiation
Lead apron - ANSWER-Material that should be used in shields
ALARA (As low as reasonably achievable) - ANSWER-Maintaining radiation
exposures at lowest level to achieve usable image
Photon - ANSWER-Energy "packets" with no mass/charge, travel at speed of light
Rad - ANSWER-Radiation absorbed dose, unit of absorbed dose
1/100 - ANSWER-1 rad = ? Gray
Radiation - ANSWER-Emission and propagation of energy through matter or
space
-Exhibits both wave and particle-like behavior
REM - ANSWER-Unit of dose equivalent or occupational exposure
