ATHENA X-IFU Demonstration Model: First joint operation of the main TES Array and its Cryogenic AntiCoincidence Detector (CryoAC)

M. D'Andrea, K. Ravensberg, A. Argan, D. Brienza, S. Lotti, C. Macculi, G. Minervini, L. Piro, G. Torrioli, F. Chiarello, L. Ferrari Barusso, M. Biasotti, G. Gallucci, F. Gatti, M. Rigano, H. Akamatsu, J. Dercksen, L. Gottardi, F. de Groote, R. den Hartog, J. -W. den Herder, R. Hoogeveen, B. Jackson, A. McCalden, S. Rosman, E. Taralli, D. Vaccaro, M. de Wit, J. Chervenak, S. Smith, N. Wakeham

Submitted on 30 June 2022


The X-IFU is the cryogenic spectrometer onboard the future ATHENA X-ray observatory. It is based on a large array of TES microcalorimeters, which works in combination with a Cryogenic AntiCoincidence detector (CryoAC). This is necessary to reduce the particle background level thus enabling part of the mission science goals. Here we present the first joint test of X-IFU TES array and CryoAC Demonstration Models, performed in a FDM setup. We show that it is possible to operate properly both detectors, and we provide a preliminary demonstration of the anti-coincidence capability of the system achieved by the simultaneous detection of cosmic muons.


Comment: Accepted for publication in the Journal of Low Temperature Physics for LTD-19 special issue

Subjects: Astrophysics - Instrumentation and Methods for Astrophysics; Physics - Instrumentation and Detectors