INTEGRAL/SPI ground calibration

Abstract

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.

9 pages, 12 figures, 2 tables. Accepted for publication in A&AL (INTEGRAL Special issue)

References in corpus (1)

• The Spiros imaging software for the Integral SPI spectrometer

Cited by in corpus (42)

• Exciting Dark Matter and the INTEGRAL/SPI 511 keV signal
• INTEGRAL observations of the cosmic X-ray background in the 5-100 keV range via occultation by the Earth
• Positron annihilation spectrum from the Galactic Center region observed by SPI/INTEGRAL
• SPI observations of the diffuse 60Fe emission in the Galaxy
• The Crab Nebula as a standard candle in very high-energy astrophysics
• SPI/INTEGRAL in-flight performance
• Gamma-ray continuum emission from the inner Galactic region as observed with INTEGRAL/SPI
• Constraining DM properties with SPI
• Separation of two contributions to the high energy emission of Cygnus X-1: Polarization measurements with INTEGRAL SPI
• Search for polarization from the prompt gamma-ray emission of GRB 041219a with SPI on INTEGRAL
• The High Energy Emission of the Crab Nebula from 20 keV to 6 MeV with INTEGRAL
• Spectral and intensity variations of Galactic 26^Al emission
• INTEGRAL/SPI $\gamma$-ray line spectroscopy
• Revisiting INTEGRAL/SPI observations of 44Ti from Cassiopeia A
• Simultaneous observations of the quasar 3C 273 with INTEGRAL, XMM-Newton and RXTE
• Polarimetry in the hard X-ray domain with INTEGRAL SPI
• Absolute timing of the Crab pulsar with the INTEGRAL/SPI telescope
• INTEGRAL observations of AGN in the Galactic Plane
• On the gamma-ray emission of Type Ia Supernovae
• SPI Measurements of Galactic 26Al
• The High Energy Spectrum of NGC 4151
• On the high-energy emissions of compact objects observed with INTEGRAL SPI: Event selection impact on source spectra and scientific results for the bright sources Crab Nebula, GS2023+338 and MAXI J1820+070
• Constraints on positron annihilation kinematics in the inner Galaxy
• Comparing simulated ${}^{26}$Al maps to gamma-ray measurements
• Reticulum II: Particle Dark Matter and Primordial Black Holes Limits
• State transition and flaring activity of IGR J17464-3213/H1743-322 with SPI/INTEGRAL telescope
• Observation of SN2011fe with INTEGRAL. I. Pre--maximum phase
• Analysis of extremely low signal-to-noise ratio data from INTEGRAL/PICsIT
• The Doppler effect on indirect detection of dark matter using dark matter only simulations
• Downscattering due to Wind Outflows in Compact X-ray Sources: Theory and Interpretation
• 2003-2019 Monitoring of the Crab emission through INTEGRAL SPI, or vice versa
• Modeling an array of encapsulated germanium detectors
• Sub-GeV Dark Matter Annihilation: Limits from Milky Way observations with INTEGRAL
• From a single encapsulated detector to the spectrometer for INTEGRAL satellite: predicting the peak-to-total ratio at high gamma-energies
• Line shape diagnostics of Galactic 26Al
• Exploring the capabilities of the Anti-Coincidence Shield of the INTEGRAL spectrometer to study solar flares
• Prospects of direct detection of ${}^{48}$V gamma-rays from thermonuclear supernovae
• Telescope Concepts in Gamma-Ray Astronomy
• Low Energy INTEGRAL Positrons from eXciting Dark Matter
• Observing with a space-borne gamma-ray telescope: selected results from INTEGRAL
• Higgs Model Coupled to Dark Photons
• Possibility of Systematic Study of Supernova Explosions by Nuclear Imaging Spectroscopy