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Proceedings Paper

The TES-based cryogenic anticoincidence detector for IXO: first results from large area prototypes
Author(s): Claudio Macculi; Luca Colasanti; Simone Lotti; Lorenzo Natalucci; Luigi Piro; Daniela Bagliani; Francesco Brunetto; Lorenza Ferrari; Flavio Gatti; Guido Torrioli; Paolo Bastia; Arnaldo Bonati; Marco Barbera; Giovanni La Rosa; Teresa Mineo; Emanuele Perinati
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Paper Abstract

The technique which combines high resolution spectroscopy with imaging capability is a powerful tool to extract fundamental information in X-ray Astrophysics and Cosmology. TES (Transition Edge Sensors)-based microcalorimeters match at best the requirements for doing fine spectroscopy and imaging of both bright (high count rate) and faint (poor signal-to-noise ratio) sources. For this reason they are considered among the most promising detectors for the next high energy space missions and are being developed for use on the focal plane of the IXO (International X-ray Observatory) mission. In order to achieve the required signal-to-noise ratio for faint or diffuse sources it is necessary to reduce the particle-induced background by almost two orders of magnitude. This reduction can only be achieved by adopting an active anticoincidence technique. In this paper, we will present a novel anticoincidence detector based on a TES sensor developed for the IXO mission. The pulse duration and the large area of the IXO TESarray (XMS X-ray Microcalorimeter Spectrometer) require a proper design of the anticoincidence detector. It has to cover the full XMS area, yet delivering a fast response. We have therefore chosen to develop it in a four-pixel design. Experimental results from the large-area pixel prototypes will be discussed, also including design considerations.

Paper Details

Date Published: 29 July 2010
PDF: 11 pages
Proc. SPIE 7732, Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray, 77323Y (29 July 2010); doi: 10.1117/12.856399
Show Author Affiliations
Claudio Macculi, INAF - IASF Roma (Italy)
Luca Colasanti, INAF - IASF Roma (Italy)
Simone Lotti, INAF - IASF Roma (Italy)
Lorenzo Natalucci, INAF - IASF Roma (Italy)
Luigi Piro, INAF - IASF Roma (Italy)
Daniela Bagliani, Univ. degli Studi di Genova (Italy)
Francesco Brunetto, Univ. degli Studi di Genova (Italy)
Lorenza Ferrari, Univ. degli Studi di Genova (Italy)
Flavio Gatti, Univ. degli Studi di Genova (Italy)
Guido Torrioli, Istituto di Fotonica e Nanotecnologie, CNR (Italy)
Paolo Bastia, Thales Alenia Space Italia S.p.A., (Italy)
Arnaldo Bonati, Thales Alenia Space Italia S.p.A., (Italy)
Marco Barbera, Univ. degli Studi di Palermo (Italy)
Giovanni La Rosa, INAF - IASF Palermo (Italy)
Teresa Mineo, INAF - IASF Palermo (Italy)
Emanuele Perinati, INAF - IASF Palermo (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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