Title :
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
fDate :
2/1/1996 12:00:00 AM
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;
Journal_Title :
Nuclear Science, IEEE Transactions on
