GRIP-2: A sensitive balloon-borne imaging gamma-ray telescope

Details GRIP-2: A sensitive balloon-borne imaging gamma-ray telescope GRIP-2: A sensitive balloon-borne imaging gamma-ray telescope

Publishing date

Feb 1997

URL

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997nimpa.384..425s&link_type=abstract

Journals

Nuclear Instruments and Methods in Physics Research Section A, v. 384, p. 425-434.

Science

Physics

Additional info 2

6

Type

Scientific paper

Abstract

This paper describes the balloon-borne 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., IEEE Trans. Nucl. Sci. NS-31 (1984) 771] instrument. GRIP-2 has an angular resolution of 33' over a 15° FWHM field of view. A large (3850 cm2 geometric area) NaI(Tl)/CsI(Na) phoswich detector provides excellent source detection sensitivity. We describe here the instrument design, performance, and preliminary results from the first two balloon flights.

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