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RESEARCH PRODUCT

SPI: The spectrometer aboard INTEGRAL

Ph. DurouchouxStéphane SchanneGerald K. SkinnerLaurent BouchetAndrew W. StrongBonnard J. TeegardenPierre LeleuxG. VedrenneGeorg WeidenspointnerGeorg WeidenspointnerRoland DiehlJames L. MattesonBertrand CordierCornelia B. WundererF. SanchezP. A. CaraveoY. AndréG. G. LichtiSteven E. BoggsM. A. ClairP. MandrouJürgen KnödlsederM. CasseJ. P. RoquesPierre JeanP. Von BallmoosP. PaulV. SchönfelderA. Von Kienlin

subject

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]

description

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 each of the main subsystems. INTEGRAL was successfully launched in October 2002 and SPI is functioning extremely well. Sanchez Martinez, Filomeno, filomeno.sanchez@ific.uv.es

yearjournalcountryeditionlanguage
2003-11-01
http://hdl.handle.net/10550/16002