IRRSP Verified Exam Solution

IRRSP Verified Exam Solution ALARA - >>As low as reasonably achievable Proton - >>Positive charge; 1 AMU Neutron - >>No charge; 1 AMU Electron - >>Negative charge, 1/1840th of the mass of a proton AMU - >>Atomic mass unit; the unit of measure for an atom Atomic Number - >>Z Number: the total number of protons in an atom Atomic Weight - >>A Number: The total mass of the atom (sum of proton and neutrons in that element) What is the half life of IR-192? - >>74 days What is the half-life of CO-60? - >>5.3 years What is the gamma constant (emissivity value) for IR-192? - >>5.2R (5200 mR) What is the gamma constant (emissivity value) for CO-60? - >>14R (14000mR) Who was the first person to observe and record X-rays? - >>Wilhelm Rontge