Title :
First results of the High Efficiency Multi-mode Imager (HEMI)
Author :
Zoglauer, Andreas ; Galloway, Michelle ; Amman, Mark ; Boggs, Steven E. ; Lee, Julie S. ; Luke, Paul N. ; Mihailescu, Lucian ; Vetter, Kai ; Wunderer, Cornelia B.
Author_Institution :
Space Sci. Lab., Univ. of California at Berkeley, Berkeley, CA, USA
fDate :
Oct. 24 2009-Nov. 1 2009
Abstract :
The High Efficiency Multi-mode Imager (HEMI) is a combined Compton and coded mask imager designed to detect and image gamma rays from ~30 keV up to a few MeV. It consists of 1-cm3-size coplanar-grid CdZnTe detectors with an energy resolution of ~2 % FWHM at 662 keV. We present the simulation and data analysis pipeline for HEMI as well as first results from measurements with an eight-detector test setup in Compton mode (spectra, angular resolution, and reconstructed images) and comparisons with simulations.
Keywords :
Compton effect; II-VI semiconductors; gamma-ray apparatus; gamma-ray detection; semiconductor counters; CdZnTe; Compton imager; HEMI data analysis pipeline; HEMI simulation; High Efficiency Multimode Imager; coded mask imager; coplanar grid CdZnTe detectors; gamma ray detection; gamma ray imaging; Analytical models; Data analysis; Energy resolution; Gamma ray detection; Gamma ray detectors; Gamma rays; Image reconstruction; Image resolution; Pipelines; Testing; CdZnTe detectors; Gamma-ray imaging; gamma-ray spectroscopy;
Conference_Titel :
Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-3961-4
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2009.5402475
