The LOFT (Large Observatory for X-ray Timing) background simulations

被引：2

作者：

Campana, R. ^{[1
,2
]}

Feroci, M. ^{[1
,2
]}

Del Monte, E. ^{[1
,2
]}

Brandt, S. ^{[3
]}

Budtz-Jorgensen, C. ^{[3
]}

Lund, N. ^{[3
]}

Alvarez, J. ^{[4
]}

Hernanz, M. ^{[4
]}

Perinati, E. ^{[5
]}

机构：

[1] INAF IAPS, Via Fosso Cavaliere 100, I-00133 Rome, Italy

[2] INAF, Sez Roma 2, I-00133 Rome, Italy

[3] DTU Space, DK-2800 Lyngby, Denmark

[4] CSIC, IEEC, E-08193 Barcelona, Spain

[5] IAAT, D-72076 Tubingen, Germany

来源：

SPACE TELESCOPES AND INSTRUMENTATION 2012: ULTRAVIOLET TO GAMMA RAY | 2012年 / 8443卷

关键词：

X-rays:general; Instrumentation:detectors; MODEL;

D O I：

10.1117/12.925999

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The Large Observatory For X-ray Timing (LOFT) is an innovative medium-class mission selected for an assessment phase in the framework of the ESA M3 Cosmic Vision call. LOFT is intended to answer fundamental questions about the behavior of matter in the very strong gravitational and magnetic fields around compact objects. With an effective area of similar to 10 m(2) LOFT will be able to measure very fast variability in the X-ray fluxes and spectra. A good knowledge of the in-orbit background environment is essential to assess the scientific performance of the mission and to optimize the instrument design. The two main contributions to the background are cosmic diffuse X-rays and high energy cosmic rays; also, albedo emission from the Earth is significant. These contributions to the background for both the Large Area Detector and the Wide Field Monitor are discussed, on the basis of extensive Geant-4 simulations of a simplified instrumental mass model.

引用

页数：9

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