Accession Number:

ADA461942

Title:

OSSE Spectral Analysis Techniques

Descriptive Note:

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Report Date:

1991-01-01

Pagination or Media Count:

14.0

Abstract:

Analysis of spectra from the Oriented Scintillation Spectrometer Experiment OSSE is complicated because of the typically low signal-to-noise 0.1 and the large background variability. The OSSE instrument was designed to address these di culties by periodically o set-pointing the detectors from the source to perform background measurements. These background measurements are used to estimate the background during each of the source observations. The resulting background- subtracted spectra can then be accumulated and tted for spectral lines andor continua. Data selection based on various environmental parameters can be performed at several stages during the analysis procedure. In order to achieve the instruments statistical sensitivity, however, it will be necessary for investigators to develop a detailed understanding of the instrument operation, data collection, and the background spectrum and its variability. A brief description of the major steps in the OSSE spectral analysis process will be described, including a discussion of the OSSE background spectrum and examples of several observation strategies.

Subject Categories:

  • Astronomy
  • Atomic and Molecular Physics and Spectroscopy
  • Nuclear Physics and Elementary Particle Physics
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE