The IBIS Gamma-Ray telescope on INTEGRAL

Ubertini, P.; Lebrun, F.; Cocco, G. Di; Bassani, L.; Bazzano, A.; Bird, A. J.; Broenstad, K.; Caroli, E.; Cocchi, M.; Cesare, G. De; Denis, M.; Cosimo, Sergio Di; Lellis, A. Di; Giannotti, F.; Goldoni, P.; Goldwurm, A.; Rosa, G. La; Labanti, C.; Laurent, P.; Limousin, O.; Malaguti, G.; Mirabel, I. F.; Natalucci, L.; Orleansky, P.; Poulsen, M. J.; Quadrini, M.; Ramsey, Brian D.; Reglero, V.; Sabau, L.; Sacco, B.; Santangelo, A.; Segreto, A.; Staubert, R.; Stephen, J. B.; Trifoglio, M.; Vigroux, L.; Volkmer, R.; Weisskopf, Martin C.; Zdziarski, A. A.; Zehnder, A.

doi:10.1063/1.1303287

Cited by 5 publications

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“…and references therein) as well as neutron capture background simulations by Harrison et al9 indicate that internal backgrounds are reasonably well understood. The imminent launch of INTEGRAL10 will provide the first long-duration measurement of backgrounds in CdTe (the 2mm thick LEGRI detector plane) with a large area coincidence shield (and detector; the underlying thick CsI detector, ISGRI).…”

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confidence: 99%

“…The "mCrab" flux unit is a convenient observatoryindependent measure of detector sensitivity in units of 1 0 of the Crab nebula flux and may be converted to an energy flux F for a band of multiplicative width W =Ex/Emjn (>1) by approximating the Crab x-ray photon spectrum as a dN/dE = 10 E2 photons/ cm2 -sec-keV, which then gives F = FmCrab [ln(W)(1.6 x 10 11)] erg/cm2 -sec. Thus 0.05 mCrab corresponds to 5 x 1013 erg/cm2 -sec for W=2, as achieved for the [5][6][7][8][9][10] keV band in the HELLAS survey3 for active galactic nuclei (AGN) conducted with the MECS instrument on BeppoSAX.…”

Section: Introductionmentioning

confidence: 99%

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EXIST: mission design concept and technology program

et al. 2003

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The Energetic X-ray Imaging Survey Telescope (EXIST) is a proposed very large area coded aperture telescope array, incorporating 8m2 of pixellated Cd-Zn-Te (CZT) detectors, to conduct a full-sky imaging and temporal hard x-ray (10-600 keV) survey each 95mm orbit. With a sensitivity (5o, lyr) of-O.O5mCrab (10-150 keV), it will extend the ROSAT soft x-ray (O.5-2.5keV) and proposed ROSITA medium x-ray (2-10 keV) surveys into the hard x-ray band and enable identification and study of sources -40-20X fainter than with the -45-1OOkeV survey planned for the upcoming Swift mission. At -400-600 keV, the -4mCrab sensitivity is 300X that achieved in the only previous (HEAO-A4, non-imaging) all-sky survey. EXIST will address a broad range of key science objectives: from obscured AGN and surveys for black holes on all scales, which constrain the accretion history of the universe, to the highest sensitivity and resolution studies of gamma-ray bursts it will conduct as the Next Generation Gamma-Ray Burst mission. We summarize the science objectives and mission drivers, and the results of a mission design study for implementation as a free flyer mission, with Delta IV launch. Key issues affecting the telescope and detector design are discussed, and a summary of some of the current design concepts being studied in support of EXIST is presented for the wide-field but high resolution coded aperture imaging and very large area array of imaging CZT detectors. Overall mission design is summarized, and technology development needs and a development program are outlined which would enable the launch of EXIST by the end of the decade, as recommended by the NASTNRC Decadal Survey.

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confidence: 99%

Section: Introductionmentioning

confidence: 99%

EXIST: mission design concept and technology program

et al. 2003

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“…The INTERnational Gamma-Ray Astrophysics Laboratory (INTEGRAL), scheduled for launch in April 2002, will build upon these discoveries with improved sensitivities and much higher spectral resolution with SPI , and angular resolution with IBIS (Ubertini et al 2000).…”

Section: Introductionmentioning

confidence: 99%

Performance characteristics of high resolution Compton telescopes

Boggs

Jean

2001

A&A

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Abstract.To build upon the goals of the upcoming INTEGRAL mission, the next generation soft γ-ray (0.2-20 MeV) observatory will require improved sensitivity to continuum and nuclear line emission, while maintaining high spectroscopy to resolve Doppler shifts and broadenings. We present the simulated performance of two germanium Compton telescope (GCT) designs in high Earth orbit conditions. The goal of this work is both to determine realistic sensitivities for the GCTs, as well as determine the geometry which best takes advantage of the spectral, imaging, and stopping power of germanium detectors. We find that a novel Compact design optimizes the sensitivity to both nuclear line and continuum sources, with an effective factor of 2.0 improvement over a Classical design. The Compact GCT would provide an order of magnitude improvement in sensitivity over INTEGRAL.

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Imaging principles and techniques in space-borne gamma-ray astronomy

Schönfelder

2004

Nuclear Instruments and Methods in Physics Research Section A:

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The IBIS Gamma-Ray telescope on INTEGRAL

Cited by 5 publications

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EXIST: mission design concept and technology program

EXIST: mission design concept and technology program

Performance characteristics of high resolution Compton telescopes

Imaging principles and techniques in space-borne gamma-ray astronomy

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