Title :
Mobile imaging and Spectroscopic Threat Identification (MISTI): System overview
Author :
Mitchell, L.J. ; Phlips, B.F. ; Johnson, W.N. ; Wulf, E.A. ; Hutcheson, A.L. ; Lister, C.J. ; Bynum, K.D. ; Leas, B.E. ; Guadagno, G.
Author_Institution :
NRL, Nat. Res. Council (NRC), Washington, DC, USA
fDate :
Oct. 24 2009-Nov. 1 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.
Keywords :
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; Costs; Graphical user interfaces; Hardware; High-resolution imaging; Image resolution; Instruments; Nuclear imaging; Optical imaging; Spectroscopy; Telephony; Gamma-Ray Spectroscopy Detectors; Gamma-ray Imaging; Homeland Security; Nuclear Imaging;
Conference_Titel :
Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-3961-4
DOI :
10.1109/NSSMIC.2009.5401849
