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Proceedings Paper

The High Time Resolution Spectrometer (HTRS) aboard the International X-ray Observatory (IXO)
Author(s): Didier Barret; Laurent Ravera; Pierre Bodin; Carine Amoros; Martin Boutelier; Jean-Michel Glorian; Olivier Godet; Guillaume Orttner; Karine Lacombe; Roger Pons; Damien Rambaud; Pascale Ramon; Souad Ramchoun; Jean-Marc Biffi; Marielle Belasic; Rodolphe Clédassou; Delphine Faye; Benjamin Pouilloux; Christian Motch; Laurent Michel; Peter H. Lechner; Adrian Niculae; Lothar W. Strueder; Giuseppe Distratis; Eckhard Kendziorra; Andréa Santangelo; Christoph Tenzer; Henning Wende; Joern Wilms; Ingo Kreykenbohm; Christian Schmid; Stéphane Paltani; Franck Cadoux; Carlo Fiorini; Luca Bombelli; Mariano Méndez; Sandro Mereghetti
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Paper Abstract

The High Time Resolution Spectrometer (HTRS) is one of the five focal plane instruments of the International X-ray Observatory (IXO). The HTRS is the only instrument matching the top level mission requirement of handling a one Crab X-ray source with an efficiency greater than 10%. It will provide IXO with the capability of observing the brightest X-ray sources of the sky, with sub-millisecond time resolution, low deadtime, low pile-up (less than 2% at 1 Crab), and CCD type energy resolution (goal of 150 eV FWHM at 6 keV). The HTRS is a non-imaging instrument, based on a monolithic array of Silicon Drift Detectors (SDDs) with 31 cells in a circular envelope and a X-ray sensitive volume of 4.5 cm2 x 450 μm. As part of the assessment study carried out by ESA on IXO, the HTRS is currently undergoing a phase A study, led by CNES and CESR. In this paper, we present the current mechanical, thermal and electrical design of the HTRS, and describe the expected performance assessed through Monte Carlo simulations.

Paper Details

Date Published: 29 July 2010
PDF: 12 pages
Proc. SPIE 7732, Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray, 77321M (29 July 2010); doi: 10.1117/12.856955
Show Author Affiliations
Didier Barret, Ctr. d'Etude Spatiale des Rayonnements (France)
Laurent Ravera, Ctr. d'Etude Spatiale des Rayonnements (France)
Pierre Bodin, Ctr. National d'Études Spatiales (France)
Carine Amoros, Ctr. d'Etude Spatiale des Rayonnements (France)
Martin Boutelier, Ctr. d'Etude Spatiale des Rayonnements (France)
Jean-Michel Glorian, Ctr. d'Etude Spatiale des Rayonnements (France)
Olivier Godet, Ctr. d'Etude Spatiale des Rayonnements (France)
Guillaume Orttner, Ctr. d'Etude Spatiale des Rayonnements (France)
Karine Lacombe, Ctr. d'Etude Spatiale des Rayonnements (France)
Roger Pons, Ctr. d'Etude Spatiale des Rayonnements (France)
Damien Rambaud, Ctr. d'Etude Spatiale des Rayonnements (France)
Pascale Ramon, Ctr. d'Etude Spatiale des Rayonnements (France)
Souad Ramchoun, Ctr. d'Etude Spatiale des Rayonnements (France)
Jean-Marc Biffi, Ctr. National d'Études Spatiales (France)
Marielle Belasic, Ctr. National d'Études Spatiales (France)
Rodolphe Clédassou, Ctr. National d'Études Spatiales (France)
Delphine Faye, Ctr. National d'Études Spatiales (France)
Benjamin Pouilloux, Ctr. National d'Études Spatiales (France)
Christian Motch, Observatoire Astronomique de Strasbourg (France)
Laurent Michel, Observatoire Astronomique de Strasbourg (France)
Peter H. Lechner, PNSensor GmbH (Germany)
Adrian Niculae, PNSensor GmbH (Germany)
Lothar W. Strueder, Max-Planck-Institut für extraterrestrische Physik (Germany)
Giuseppe Distratis, Institut für Astronomie und Astrophysik (Germany)
Eckhard Kendziorra, Institut für Astronomie und Astrophysik (Germany)
Andréa Santangelo, Institut für Astronomie und Astrophysik (Germany)
Christoph Tenzer, Institut für Astronomie und Astrophysik (Germany)
Henning Wende, Institut für Astronomie und Astrophysik (Germany)
Joern Wilms, Dr. Remeis-Observatory (Germany)
Ingo Kreykenbohm, Dr. Remeis-Observatory (Germany)
Christian Schmid, Dr. Remeis-Observatory (Germany)
Stéphane Paltani, ISDC, Geneva Observatory (Switzerland)
Franck Cadoux, ISDC, Geneva Observatory (Switzerland)
Carlo Fiorini, Politecnico di Milano (Italy)
Luca Bombelli, Politecnico di Milano (Italy)
Mariano Méndez, Kapteyn Astronomical Institute (Netherlands)
Sandro Mereghetti, INAF - IASF Milano (Italy)


Published in SPIE Proceedings Vol. 7732:
Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray
Monique Arnaud; Stephen S. Murray; Tadayuki Takahashi, Editor(s)

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