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

fYear

2009

fDate

Oct. 24 2009-Nov. 1 2009

Firstpage

887

Lastpage

891

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE

Conference_Location

Orlando, FL

ISSN

1095-7863

Print_ISBN

978-1-4244-3961-4

Electronic_ISBN

1095-7863

Type

conf

DOI

10.1109/NSSMIC.2009.5402475

Filename

5402475