SAM 935

SAM 935 is a portable, radiation detection and identification device. It uses gamma spectroscopy with room temperature NaI detectors, and QCC, Quadratic Compression Conversion, algorithms to identify multiple isotopes in realtime and below background (it subtracts the background). The SAM, surveillance and monitoring, is able to capture even transient phenomenon such as in portal situations because it captures spectra in short time segments and produces a response from spectra with each time segment. Conversely, if the SAM is in a moving vehicle, it can quickly scan an area as the vehicle moves. The first line responder can email the SAM 935 data report for further analysis.

An upgrade to the SAM 935, the SAM 940, uses a LaBr3 detector that has better resolution than a NaI detector. Additionally, the SAM 940 offers one-hand operation and a better display. An advantage of LaBr is clearly seeing the gamma and x- ray peaks of plutonium. The one highly penetrating NaI peak of Pu239 is now clearly seperated into three easily recognized peaks with LaBr . The first line responder can email the SAM 940 data report (complete with GPS data, ANSI N42.42 compliant) for further analysis.

References:

http://www3.interscience.wiley.com/journal/113340210/abstract?CRETRY=1&SRETRY=0 "Delineation of radioactive contaminants using expedited field characterization equipment"

http://www.iop.org/EJ/abstract/0952-4746/27/3A/S04 "Development and use of radiation detection technology for buried seabed particles" which uses a remotely operated vehicle

https://voa.marad.dot.gov/programs/ns_savannah/docs/Character_Survey_Report/NSS_Char_Rpt_App_P%20Pg%20724-735.pdf "Radiological Sampling and Gamma Scans Aboard the N/S SAVANNAH"

http://www.health-physics.com/pt/re/healthphys/abstract.00004032-200302001-00012.htm;jsessionid=LvdYRmY23J6PnyQJSmMlJchQznhK1JMbghdpDm5zpsqCwgXL1XsZ!-1052912739!181195629!8091!-1"Worker and Environmental Protection Issues in the Remediation Of an Abandoned Source Manufacturing Facility."