As Low As Reasonably Achievable; Use procedures and controls to minimize occupational and public radiation exposure.
Three key radiation protection factors
Time, Distance, Shielding
Formula for inverse square law
I1D1² = I2D2²
Formula for half value layer (HVL)
HVL = 0.693 / μ (μ = linear attenuation coefficient)
Five "DOs" in radiation protection
Post radiation signs, wear lab coats and gloves, handle radioactivity behind shields, cover work areas, store radioactive materials in lead containers.
Three "DON'Ts" in radiation protection
Eating, drinking, or smoking in the lab; Pipetting radioactive material by mouth; Improper radioactive waste disposal.
Five required postings in a radiation work area
10 CFR Parts 19 & 20, license and related documents, operating procedures, notices of violation/penalties, NRC Form 3.
Three required label details on licensed material containers
Radionuclide, quantity of radioactivity, date.
Annual dose limit for a declared pregnant worker's fetus
0.5 rem (500 mrem)
NRC Form 3 purpose
Notice to Employees
CFR chapter for licensing byproduct materials
Chapter 30
Steps for a minor radioactive spill
Attend to contaminated persons, alert others, wear protective equipment, clean from outside-in, decontaminate, monitor with survey meter and wipe test, document everything.
Steps for a major radioactive spill
Attend to injured persons, evacuate, monitor individuals, call the RSO, document names of exposed individuals.
Three required items in a written directive
Patient name, identity and dosage of drug, route of administration.
Definition of a medical event
Wrong drug, route, or activity dose resulting in patient exceeding 5 rem WB, 50 rem to an organ, or 50 rem to skin.
Survey meter calibration frequency
Annually, prior to first use, after repair.
Record retention period for individual monitoring results
Until license termination.
Three types of Radiation Material Licenses (RML)
General Domestic License (in-vitro testing), Specific Domestic License (Limited Scope), Specific Domestic License (Broad Scope Type A, B, or C).
Purpose of the Radiation Safety Committee (RSC)
Review materials related to the radiation safety program presented by the RSO.