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The Demonstration Model of the ATHENA X-IFU Cryogenic AntiCoincidence Detector

Journal
Date Issued
2020
Author(s)
•
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Torrioli, G.
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Biasotti, M.
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Ferrari Barusso, L.
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Gatti, F.
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Rigano, M.
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Volpe, A.
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Battistelli, E. S.
DOI
Abstract
The Cryogenic AntiCoincidence detector (CryoAC) of ATHENA X-IFU is designed to reduce the particle background of the instrument and to enable the mission science goals. It is a 4-pixel silicon microcalorimeter sensed by an Ir/Au TES network. We have developed the CryoAC demonstration model, a prototype aimed to probe the critical technologies of the detector, i.e., the suspended absorber with an active area of 1 cm2; the low energy threshold of 20 keV; and the operation connected to a 50 mK thermal bath with a power dissipation less than 40 nW. Here, we report the test performed on the first CryoAC DM sample (namely, the AC-S10 prototype), showing that it is fully compliant with its requirements.
Volume
199
Issue
1-2
Start page
65
Uri
Url
Issn Identifier
0022-2291
Ads BibCode
2020JLTP..199...65D
Rights
open.access
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