Radiation Safety (ammo 66) FINAL Exam
The process by which an unstable nucleus releases energy to achieve greater stability is called - Nuclear decay [ANSWER] What charge does a neutron have? - Neutral [ANSWER] Ionization is a neutral atom acquiring charge by gaining or losing - Electrons [ANSWER] Which loses energy each time ionization occurs, has a short range, and cannot penetrate a sheet of paper - Alpha particle [ANSWER] What pathway allows isotopes to enter the body through penetrating the skin - Absorption (incorrect) What type of ionizing radiation does not have enough energy to penetrate human skin? - Alpha particle [ANSWER] Radiation source produced by humans are called - Background radiation (incorrect) Natural radiation comes from what two sources - Cosmic and earth [ANSWER] The NRC is responsible for - Regulating ionizing radiation use in the United States
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Which army regulation establishes the army radiation safety program? - DA Pam, 385-24
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What is the term for the decay rate per mass or volume of the radioactive atom? - Specific activity [ANSWER] RADIAC, instruments based on the ionization principle - Collect and measure the ion pairs created when radiation interacts with matter [ANSWER] What type of dosimetry is used to measure the dose receded from sources received outside of the body - Scintillation (incorrect) What type of device can be worn on the body to measure an accumulated radiation dose? - Ionization dosimeter (incorrect)
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