GRABIT: a large-area, broad-bandwidth, gamma-ray imaging spectrometer for astrophysics

Author

Sandler, P.H. ; Hailey, C.J. ; Sprehn, G. ; Ziock, K.P.

Author_Institution

Lab. for Exp. Astrophys., Lawrence Livermore Nat. Lab., CA, USA

Volume

43

Issue

1

fYear

1996

fDate

2/1/1996 12:00:00 AM

Firstpage

278

Lastpage

282

Abstract

GRABIT is the gamma-ray bar imaging telescope, a low-energy gamma-ray (60-600 keV) imaging spectrometer that can be extended to a large area at low cost. GRABIT has a gamma-ray position-resolution of 2 mm with an energy resolution typical of alkali-halide detectors (18% at 60 keV). The complete coded-aperture telescope will have arc-minute angular resolution over a large field of view. In addition, the good energy and angular resolutions are obtained over the full bandwidth of the instrument

Keywords

astronomical instruments; astronomical telescopes; gamma-ray astronomy; gamma-ray detection; gamma-ray spectrometers; position sensitive particle detectors; telescopes; 2 mm; 60 to 600 keV; GRABIT; arc-minute angular resolution; bandwidth; coded-aperture telescope; energy resolution; gamma-ray bar imaging telescope; gamma-ray imaging spectrometer; low-energy gamma-ray; position resolution; Bandwidth; Costs; Energy resolution; Gamma ray detection; Gamma ray detectors; Instruments; Nuclear imaging; Optical imaging; Spectroscopy; Telescopes;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.485966

Filename

485966