Development of a TES based Cryo-Anticoincidence for a large array of microcalorimeters
- Authors: Colasanti, L.; Macculi, C.; Piro, L.; Natalucci, L.; Gatti, F.; Ferrari, L.; Mineo, T.; Perinati, E.; Torrioli, G.; Bastia, P.; Barbera, M.
- Publication year: 2009
- Type: eedings
- Key words: X-ray, detectors, microcalorimeters, background
- OA Link: http://hdl.handle.net/10447/49097
Abstract
The employment of large arrays of microcalorimeters in space missions (IXO, EDGE/XENIA)[1][2][3], requires the presence of an anticoincidence detector to remove the background due to the particles, with a rejection efficiency at least equal to Suzaku (98%) [1]. A new concept of anticoincidence is under development to match the very tight thermal requirements and to simplify the design of the electronic chain. The idea is to produce a Cryo-AntiCoincidence (Cryo-AC) based on a silicon absorber and read by a TES (Transition-Edge Sensor). This configuration would ensure very good performances in terms of efficiency, time response and signal to noise ratio. We present the results of estimations, simulations and preliminary measurement.