6533b852fe1ef96bd12aa320
RESEARCH PRODUCT
INTEGRAL/SPI ground calibration
J. KienerSteven J. SturnerP. Von BallmoosV. SchönfelderJürgen KnödlsederS. CrespinBonnard J. TeegardenDavid AttiéGeorg WeidenspointnerPierre LeleuxMarie-geneviève PorquetG. VedrenneBertrand CordierV. TatischeffChris ShraderF. SanchezA. Von KienlinPh. PaulC. B. WundererPhilippe LaurentM. GrosAndrew W. StrongJean-pierre RoquesP. JeanG. TauzinRobert GeorgiiS. JolyLaurent BouchetP. MandrouG. G. LichtiY. AndréGerald K. SkinnerS. Schannesubject
Point source[SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]FOS: Physical sciencesInstrumentation ; Detectors ; Spectrographs ; Space vehicles ; Gamma rays ; ObservationsAstrophysicsUNESCO::ASTRONOMÍA Y ASTROFÍSICAAstrophysics01 natural sciences[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]OpticsSpectrographs0103 physical sciencesCalibrationSource separationAngular resolutionSpectral resolutionspace vehicles: instrumentsInstrumentation010303 astronomy & astrophysicsObservations:ASTRONOMÍA Y ASTROFÍSICA::Astronomía óptica [UNESCO]instrumentation: spectrographsPhysicsSpectrometer[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph]010308 nuclear & particles physicsbusiness.industryinstrumentation: detectorsUNESCO::ASTRONOMÍA Y ASTROFÍSICA::Astronomía ópticaGamma raysAntenna apertureAstrophysics (astro-ph)DetectorsSpace vehiclesAstronomy and AstrophysicsOptical axisSpace and Planetary Sciencebusiness:ASTRONOMÍA Y ASTROFÍSICA [UNESCO]gamma rays: observationsdescription
Three calibration campaigns of the spectrometer SPI have been performed before launch in order to determine the instrument characteristics, such as the effective detection area, the spectral resolution and the angular resolution. Absolute determination of the effective area has been obtained from simulations and measurements. At 1 MeV, the effective area is 65 cm^2 for a point source on the optical axis, the spectral resolution ~2.3 keV. The angular resolution is better than 2.5 deg and the source separation capability about 1 deg. Some temperature dependant parameters will require permanent in-flight calibration.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2003-01-01 |