Radioactive Contamination Estimation by Airborne Survey Based NaI Detectors

A survey of the Aerial Measuring System (AMS) of the U.S. Department of Energy (DOE), National Nuclear Security Administration (NNSA) and Israel Atomic Energy Commission (IAEC) was done. The goal of the study was to investigate the response of the aerial radiation detection system to varied radioactive surface contamination levels, isotopic composition experienced, the data processing technique and the impact of the detector size. THE IAEC AMS System AirRAM 2000, was designed by the IAEC Nuclear Research Center Negev (NRCN) and built commercially by ROTEM Industries and incorporates two 2
^''
diameter ×2
^''
long NaI crystals. The AirRAM 2000 mounted on a DOE Bell-412 helicopter for a series of aerial measurements at local test ranges. THE study included carry out operational flight activities collecting radiation data from natural background, dispersed radioactivity, and point sources. All planned flight activities followed by scientific discussions on the collected data were completed.