GRI: focusing on the evolving violent universe

Publication: Research - peer-reviewJournal article – Annual report year: 2009

Standard

GRI: focusing on the evolving violent universe. / Knodlseder, J.; von Ballmoos, P.; Frontera, F.; Bazzano, A.; Christensen, Finn Erland; Hernanz, M.; Wunderer, C.

In: Experimental Astronomy, Vol. 23, No. 1, 2009, p. 121-138.

Publication: Research - peer-reviewJournal article – Annual report year: 2009

Harvard

Knodlseder, J, von Ballmoos, P, Frontera, F, Bazzano, A, Christensen, FE, Hernanz, M & Wunderer, C 2009, 'GRI: focusing on the evolving violent universe' Experimental Astronomy, vol 23, no. 1, pp. 121-138., 10.1007/s10686-008-9119-4

APA

Knodlseder, J., von Ballmoos, P., Frontera, F., Bazzano, A., Christensen, F. E., Hernanz, M., & Wunderer, C. (2009). GRI: focusing on the evolving violent universe. Experimental Astronomy, 23(1), 121-138. 10.1007/s10686-008-9119-4

CBE

Knodlseder J, von Ballmoos P, Frontera F, Bazzano A, Christensen FE, Hernanz M, Wunderer C. 2009. GRI: focusing on the evolving violent universe. Experimental Astronomy. 23(1):121-138. Available from: 10.1007/s10686-008-9119-4

MLA

Vancouver

Knodlseder J, von Ballmoos P, Frontera F, Bazzano A, Christensen FE, Hernanz M et al. GRI: focusing on the evolving violent universe. Experimental Astronomy. 2009;23(1):121-138. Available from: 10.1007/s10686-008-9119-4

Author

Knodlseder, J.; von Ballmoos, P.; Frontera, F.; Bazzano, A.; Christensen, Finn Erland; Hernanz, M.; Wunderer, C. / GRI: focusing on the evolving violent universe.

In: Experimental Astronomy, Vol. 23, No. 1, 2009, p. 121-138.

Publication: Research - peer-reviewJournal article – Annual report year: 2009

Bibtex

@article{82c421a65f0a4d29828d910ee2ce0218,
title = "GRI: focusing on the evolving violent universe",
keywords = "Mission concepts, Gamma-ray astronomy, Crystal lens telescope, Multilayer-coated mirror telescope, Cosmic Vision 2015-2025",
publisher = "Springer Netherlands",
author = "J. Knodlseder and {von Ballmoos}, P. and F. Frontera and A. Bazzano and Christensen, {Finn Erland} and M. Hernanz and C. Wunderer",
year = "2009",
doi = "10.1007/s10686-008-9119-4",
volume = "23",
number = "1",
pages = "121--138",
journal = "Experimental Astronomy",
issn = "0922-6435",

}

RIS

TY - JOUR

T1 - GRI: focusing on the evolving violent universe

A1 - Knodlseder,J.

A1 - von Ballmoos,P.

A1 - Frontera,F.

A1 - Bazzano,A.

A1 - Christensen,Finn Erland

A1 - Hernanz,M.

A1 - Wunderer,C.

AU - Knodlseder,J.

AU - von Ballmoos,P.

AU - Frontera,F.

AU - Bazzano,A.

AU - Christensen,Finn Erland

AU - Hernanz,M.

AU - Wunderer,C.

PB - Springer Netherlands

PY - 2009

Y1 - 2009

N2 - The gamma-ray imager (GRI) is a novel mission concept that will provide an unprecedented sensitivity leap in the soft gamma-ray domain by using for the first time a focusing lens built of Laue diffracting crystals. The lens will cover an energy band from 200-1,300 keV with an effective area reaching 600 cm(2). It will be complemented by a single reflection multilayer coated mirror, extending the GRI energy band into the hard X-ray regime, down to similar to 10 keV. The concentrated photons will be collected by a position sensitive pixelised CZT stack detector. We estimate continuum sensitivities of better than 10 (-aEuro parts per thousand 7) ph cm (-aEuro parts per thousand 2)s (-aEuro parts per thousand 1)keV (-aEuro parts per thousand 1) for a 100 ks exposure; the narrow line sensitivity will be better than 3 x 10 (-aEuro parts per thousand 6) ph cm (-aEuro parts per thousand 2)s (-aEuro parts per thousand 1) for the same integration time. As focusing instrument, GRI will have an angular resolution of better than 30 arcsec within a field of view of roughly 5 arcmin-an unprecedented achievement in the gamma-ray domain. Owing to the large focal length of 100 m of the lens and the mirror, the optics and detector will be placed on two separate spacecrafts flying in formation in a high elliptical orbit. R&D work to enable the lens focusing technology and to develop the required focal plane detector is currently underway, financed by ASI, CNES, ESA, and the Spanish Ministery of Education and Science. The GRI mission has been proposed as class M mission for ESAs Cosmic Vision 2015-2025 program. GRI will allow studies of particle acceleration processes and explosion physics in unprecedented detail, providing essential clues on the innermost nature of the most violent and most energetic processes in the universe.

AB - The gamma-ray imager (GRI) is a novel mission concept that will provide an unprecedented sensitivity leap in the soft gamma-ray domain by using for the first time a focusing lens built of Laue diffracting crystals. The lens will cover an energy band from 200-1,300 keV with an effective area reaching 600 cm(2). It will be complemented by a single reflection multilayer coated mirror, extending the GRI energy band into the hard X-ray regime, down to similar to 10 keV. The concentrated photons will be collected by a position sensitive pixelised CZT stack detector. We estimate continuum sensitivities of better than 10 (-aEuro parts per thousand 7) ph cm (-aEuro parts per thousand 2)s (-aEuro parts per thousand 1)keV (-aEuro parts per thousand 1) for a 100 ks exposure; the narrow line sensitivity will be better than 3 x 10 (-aEuro parts per thousand 6) ph cm (-aEuro parts per thousand 2)s (-aEuro parts per thousand 1) for the same integration time. As focusing instrument, GRI will have an angular resolution of better than 30 arcsec within a field of view of roughly 5 arcmin-an unprecedented achievement in the gamma-ray domain. Owing to the large focal length of 100 m of the lens and the mirror, the optics and detector will be placed on two separate spacecrafts flying in formation in a high elliptical orbit. R&D work to enable the lens focusing technology and to develop the required focal plane detector is currently underway, financed by ASI, CNES, ESA, and the Spanish Ministery of Education and Science. The GRI mission has been proposed as class M mission for ESAs Cosmic Vision 2015-2025 program. GRI will allow studies of particle acceleration processes and explosion physics in unprecedented detail, providing essential clues on the innermost nature of the most violent and most energetic processes in the universe.

KW - Mission concepts

KW - Gamma-ray astronomy

KW - Crystal lens telescope

KW - Multilayer-coated mirror telescope

KW - Cosmic Vision 2015-2025

U2 - 10.1007/s10686-008-9119-4

DO - 10.1007/s10686-008-9119-4

JO - Experimental Astronomy

JF - Experimental Astronomy

SN - 0922-6435

IS - 1

VL - 23

SP - 121

EP - 138

ER -