Mobile imaging and Spectroscopic Threat Identification (MISTI): System overview
Nuclear Science Symposium Conference Record（2009）
Abstract
The Mobile Imaging and Spectroscopic Threat Identification (MISTI) system developed to locate radiological threats in urban and rural environments is currently undergoing characterization activities. MISTI is a mobile source detection and imaging system designed to identify and localize a radiological source to within +/- 10 m in range. This requirement is based on a 1 mCi Cs-137 source at 100 m in 20s, while maintaining a false alarm rate of less than one per day. MISTI utilizes the cost effective collection power of NaI for imaging and the sensitivity of high resolution HPGe for spectroscopy. MISTI's data acquisition system was developed with the latest commercially availed hardware that met MISTI's requirements. The performance of crucial software and hardware components is presented along with overall system performance. A synopsis and example of the initial characterization results are presented here.
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Key words
gamma-ray spectroscopy,germanium radiation detectors,misti,data acquisition system,hardware component,high resolution hpge,imaging system,mobile imaging and spectroscopic threat identification,mobile source detection,radiological source,radiological threats,software component,gamma-ray spectroscopy detectors,gamma-ray imaging,homeland security,nuclear imaging,gamma ray,high resolution,gamma ray spectroscopy,cost effectiveness,system performance,false alarm rate,detectors,imaging,servers,calibration,lead,data acquisition
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