0000000000714137

AUTHOR

James L. Matteson

showing 2 related works from this author

The INTEGRAL experiment

1998

The International Gamma-ray Astrophysics Laboratory (INTEGRAL) is conceived as the next logical step in gamma-ray astronomy after the US Compton Gamma-Ray Observatory (CGRO) and the French/Russian SIGMA mission. The INTEGRAL scientific payload consists of two main instruments (Imager and Spectrometer) and two monitor instruments (X-Ray Monitor and Optical Transient Camera). The INTEGRAL spectrometer "SPI" is optimized for detailed measurements of gamma-ray lines and mapping of diffuse sources. It combines a coded aperture mask with an array of large volume, high-purity germanium detectors. The detectors make precise measurements of the gamma-ray energies over the 20 keV-8 MeV energy range. …

PhysicsNuclear and High Energy PhysicsSpectrometerPayloadbusiness.industryAstrophysics::High Energy Astrophysical PhenomenaMonte Carlo methodDetectorAstrophysics::Instrumentation and Methods for AstrophysicsAtomic and Molecular Physics and OpticsOpticsObservatoryAngular resolutionCoded apertureTransient (oscillation)business
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SPI: The spectrometer aboard INTEGRAL

2003

SPI is a high spectral resolution gamma-ray telescope on board the ESA mission INTEGRAL (International Gamma Ray Astrophysics Laboratory). It consists of an array of 19 closely packed germanium detectors surrounded by an active anticoincidence shield of BGO. The imaging capabilities of the instrument are obtained with a tungsten coded aperture mask located 1.7 m from the Ge array. The fully coded field-of-view is 16º, the partially coded field of view amounts to 31º, and the angular resolution is 2.5º. The energy range extends from 20 keV to 8 MeV with a typical energy resolution of 2.5 keV at 1.3 MeV. Here we present the general concept of the instrument followed by a brief description of …

Astrophysics::High Energy Astrophysical PhenomenaField of viewSpectroscopicUNESCO::ASTRONOMÍA Y ASTROFÍSICAlaw.inventionTelescopeOpticslawAngular resolutionCoded apertureSpectral resolutionSpectrographDetector ; Spectrograph ; Techniques ; Spectroscopic:ASTRONOMÍA Y ASTROFÍSICA::Astronomía óptica [UNESCO]PhysicsSpectrographSpectrometerbusiness.industryUNESCO::ASTRONOMÍA Y ASTROFÍSICA::Astronomía ópticaResolution (electron density)Astrophysics::Instrumentation and Methods for AstrophysicsAstronomy and AstrophysicsDetectorTechniquesSpace and Planetary Sciencebusiness:ASTRONOMÍA Y ASTROFÍSICA [UNESCO]
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