ASNT STUDY GUIDE: Industrial Radiography Radiation Safety Questions And Answers All Verified By Expert

ASNT STUDY GUIDE: Industrial Radiography Radiation Safety Questions And Answers All Verified By Expert THE SYMBOL (R) MEANS - ANS ROENTGEN The acronym RAD means - ANS radiation absorbed dose The roentgen (R) exposure is measured in - ANS AIR The symbol mR means - ANS milliroentgen One roentgen or 1 R is equal to - ANS 1 milliroentgen The acronym rem stands for - ANS roentgen equivalent man The initialism QF stands for - ANS quality factor The quality factor for X-ray and gamma rays is - ANS 1 The quality factor for alpha (ray) particles is - ANS 1 Activity of radioactive material is measured in - ANS curies Becquerels and curies are units of measurement of: - ANS decay rate Atoms that have excess energy and are unstable are known as - ANS radioactive Elementary particle units with a negative electrical charge and a mass approximately equal to 1/1840 that of a proton are - ANS electrons Positively charged elementary particles with a mass approximately equal to 1840 times that of an electron, or 1 AMU, are known as - ANS protons Uncharged elementary particles with a mass nearly equal to that of a proton are called - ANS neutrons The area known as the center of an atom is called the - ANS nucleus Any byproduct material that is encased in a capsule designed to prevent leakage or escape of the byproduct material is a: - ANS sealed source