TEST BANK 2026 UPDATED QUESTIONS
WITH ANSWERS GRADED A+
⩥ Atoms having the same number or protons but a different number on
neutrons in the nuclei. Atoms with the same atomic number (the same
chemical element) but different atomic weights. Answer: Isotope
⩥ Any source that disrupts the electrical balance of an atom and results
in the production of ions. Answer: Ionization
⩥ The radation dose or amount of radation that has been absorbed by a
substance. Measured in rads (greys). Answer: Absorbed dose
⩥ The process whereby the particles or photons in a beam of radation
are reduced in number or energy as they pass through a medium.
Answer: Absorption
⩥ The activity of a radioisotope is the number of disintegrations that
occur for a given quantity of the radioisotope during a given length of
time. Activity is measured in curies (becquerel) Answer: Activity
⩥ The acronym for (As Low As Reasonably Achievable) which means
making every effort to maintain and control exposures as far below the
, dose limits as in practical. This consept comes out of the Code of
Federal Regulation 10 CFR Part 20. Answer: ALARA
⩥ A small electronic device, required to be worn by a radiographer, with
an audible alarm set to trigger at 500 mR/h (5000 uSv/h). Answer:
Alarming rate meter
⩥ A positive electrically chargerd particle of radation consisting of 2
protrons and 2 newtrons (same as helium nucleus). It is emitted from the
nucleus of many radioactive materials during radioactive decay. ( +
charge) Answer: Alpha particle
⩥ An electrically charged particle of radation emitted from the nucleus
of many radioactive materials during radioactive decay. A beta particle is
a fast-moving electron, sometimes moving close to the speed of light.
( - charge) Answer: Beta particles
⩥ High energy, short wavelenghth electromagnetic radation emitted
during radioactive decay. Answer: Gamma rays
⩥ The reduction in the intensity of radation as it passes through a
material. Answer: Attenuation