Solar tower atmospheric Cherenkov effect experiment (STACEE) for ground based gamma ray astronomy

Details Solar tower atmospheric Cherenkov effect experiment (STACEE) for ground based gamma ray astronomy Solar tower atmospheric Cherenkov effect experiment (STACEE) for ground based gamma ray astronomy

May 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aipc..410.1626b&link_type=abstract

The fourth compton symposium. AIP Conference Proceedings, Volume 410, pp. 1626-1630 (1997).

Astronomy and Astrophysics

Astrophysics

1

X- And Gamma-Ray Telescopes And Instrumentation, Gamma-Ray, Cherenkov Detectors

Scientific paper

The STACEE experiment is being developed to study very high energy astrophysical gamma rays between 50 and 500 GeV. During the last few years this previously unexplored region has received much attention due to the detection of sources up to about 10 GeV by the EGRET instrument on board the CGRO. However, the paucity of detected sources at ~1 TeV indicates that fundamental processes working within these sources and/or in the intergalactic space are responsible for the cutoff in the photon spectra of the EGRET sources. The cutoff or the spectral change of these sources can be observed with ground-based Cherenkov detectors with a very low threshold. The use of large arrays of mirrors at solar power facilities is a promising way of lowering the threshold. Using this concept a series of tests were conducted at the National Solar Thermal Test Facility (NSTTF) at Sandia National Laboratories (Albuquerque, NM) with a full size prototype of the STACEE telescope system. The tests show that STACEE will be capable of meaningful exploration of the gamma-ray sky between 50 and 500 GeV with good sensitivity.

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