40-hour radiation safety exam 2023 solved 100% correct

The symbol R means - ANSWER-roentgen the acronym rad means - ANSWER-radiation absorbed dose the roentgen (R) exposure is measured in - ANSWER-air the symbol mR means - ANSWER-milliroentgen one roentgen or 1 R is equal to - ANSWER-1000 milliroentgen the acronym rem stands for - ANSWER-roentgen equivalent man the initialism QF stands for - ANSWER-quality factor the quality factor for X-rays and gamma rays is - ANSWER-1 the quality factor for alpha (ray) particles is - ANSWER-20 activity of radioactive material is measured in - ANSWER-curies Becquerels and curies are units of measurement of - ANSWER-decay rate atoms that have excess energy and are unstable are known as - ANSWER-radioactive elementary particle units with a negative electrical charge and a mass approximately equal to 1/1840 that of a proton are - ANSWER-electrons positively charged elementary particles with a mass approximately equal to 1840 times that of an electron, or 1 AMU, are known as - ANSWER-protons unchanged elementary particles with a mass nearly equal that of a proton are called - ANSWER-neutrons the area known as the center of an atom is called the - ANSWER-nucleus any byproduct material that is encased in a capsule designed to prevent leakage or escape of the byproducts material is - ANSWER-sealed source a tube through which the radioactive source travels when inside a radiographic exposure device is a - ANSWER-S tube