GRIP-2 - A SENSITIVE BALLOON-BORNE IMAGING GAMMA-RAY TELESCOPE

Authors
SCHINDLER SM COOK WR HAMMOND J HARRISON FA PRINCE TA WANG S CORBEL S HEINDL WA
Citation
Sm. Schindler et al., GRIP-2 - A SENSITIVE BALLOON-BORNE IMAGING GAMMA-RAY TELESCOPE, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 384(2-3), 1997, pp. 425-434
Citations number
8
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
384
Issue
2-3
Year of publication
1997
Pages
425 - 434
Database
ISI
SICI code
0168-9002(1997)384:2-3<425:G-ASBI>2.0.ZU;2-I
Abstract
This paper describes the balloon-bone coded-aperture telescope, GRIP-2 , which is designed for imaging observations of astrophysical sources in the 30 keV-2 MeV band. GRIP-2 employs the rotating hexagonal coded- mask imaging technique pioneered by the Caltech GRIP-1 [Cook et al., I EEE Trans. Nucl. Sci. NS-31 (1984) 771] instrument. GRIP-2 has an angu lar resolution of 33' over a 15 degrees FWHM field of view. A large (3 850 cm(2) geometric area) NaI(Tl)/CsI(Na) phoswich detector provides e xcellent source detection sensitivity. We describe here the instrument design, performance, and preliminary results from the first two ballo on flights.