U.S. Air Force Senior Airman Dustin Roberts, 19th Civil Engineer emergency management journeyman, uses Alpha Probe-100 to monitor aircrew members for the presence of alpha radiation contamination at Little Rock Air Force Base, Arkansas, Oct. 24, 2019. This training is intended to familiarize Airmen with the proper procedures on conducting decontamination protocol on the flight line. (U.S. Air Force photo by Airman 1st Class Mariam K. Springs)