Accession Number:

ADA165502

Title:

The Oriented Scintillation Spectrometer Experiment for the Gamma-Ray Observatory,

Descriptive Note:

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Report Date:

1983-01-01

Pagination or Media Count:

4.0

Abstract:

The Oriented Scintillation Spectrometer Experiment OSSE for the Gamma Ray observatory is described. OSSE uses four identical NaITl-CsINa phoswich detectors to provide gamma-ray line and continuum detection capability in the 0.05-10 MeV energy range. Additioal gamma-ray and neutron detection capability is achieved above 10 MeV. Each detector has a CsI annular shield and a tungsten alloy collimator which define a 5 x 11 deg FWHM field-of-view. The detectors have independent, single-axis orientation systems which permit offset pointing to provide source-background subtraction. The sensitivity for line gamma rays the 0.05-10 MeV region will be .00002 - .00003 photonscc-s for a .000001-second observation period. The several modes of data acquisition and the emphases for the eplanned observational program are discussed.

Subject Categories:

  • Nuclear Instrumentation
  • Radioactivity, Radioactive Wastes and Fission Products

Distribution Statement:

APPROVED FOR PUBLIC RELEASE