Title :
Wide-Angle Nuclear Detection Array (WANDA)
Author :
Doyle, Timothy ; DeVito, Raymond
Author_Institution :
Dept. of Phys., Utah State Univ., Logan, UT, USA
Abstract :
The Wide-Angle Nuclear Detection Array (WANDA) is a data analysis system that uses an array of detectors to act as a coincidence detection system, utilizes a database of possible radioisotopes, and searches this database using a physics-based analysis to identify the source type and location that best accounts for the measured Compton scattering data. This method has the ability to utilize partial-energy events and works with smaller and lower cost detectors that do not require full-energy absorption. WANDA maintains a full 4π field of view, and provides simultaneous recognition of the source location and identification of source material. Test scenarios exploring comparison of WANDA and conventional detection and identification technologies are presented.
Keywords :
Compton effect; Monte Carlo methods; data analysis; nuclear materials transportation; position sensitive particle detectors; Compton scattering data; Monte Carlo method; WANDA; Wide-Angle Nuclear Detection Array; coincidence detection system; data analysis system; full- energy absorption; partial-energy events; radioisotopes; Arrays; Correlation; Detectors; Gamma rays; Image reconstruction; Radioactive materials; Scattering; Compton scattering; Monte Carlo method; illicit trafficing of nuclear materials; maximum likelihood estimation;
Conference_Titel :
Technologies for Homeland Security (HST), 2010 IEEE International Conference on
Conference_Location :
Waltham, MA
Print_ISBN :
978-1-4244-6047-2
DOI :
10.1109/THS.2010.5654935