Regensburg 2019 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 63: Poster Session: Cryogenic Particle Detectors and Cryotechnique

TT 63.1: Poster

Thursday, April 4, 2019, 15:00–18:30, Poster D

Metallic Magnetic Calorimeters for high resolution X-ray Spectroscopy — •S. Allgeier¹, M. Friedrich¹, J. Geist¹, D. Hengstler¹, C. Schötz¹, S. Kempf¹, L. Gastaldo¹, A. Fleischmann¹, C. Enss¹, S. Trotsenko⁴, T. Morgenroth⁴, M.O. Herdrich², G. Weber^2,4, G. Märtin^2,4, Th. Stöhlker^2,3,4, G.A. Kazakov⁵, S.P. Stellmer⁵, and T. Schumm⁵ — ¹KIP, Heidelberg University — ²Helmholtz-Institute Jena — ³GSI Darmstadt — ⁴IOQ, Jena University — ⁵Vienna University of Technology

Metallic magnetic calorimeters are energy dispersive particle detectors which provide a high energy resolution over a wide range of energies as well as an excellent linearity. They are operated at millikelvin temperatures and convert the energy of a single absorbed particle into a temperature rise, which leads to a magnetization change in an attached paramagnetic sensor read out by a SQUID. Presently we are adopting our 64-pixel MMC series of maXs-20,-30,-200 and polarmaXs to measurements at CRYRING (GSI/FAIR, Darmstadt) for next generation QED test on hydrogen-like Uranium. We present the newly developed sidearm with a 32-channel-read-out-chain including the cryogenic SQUID-amplifier-modules. In addition we present the micro-fabricated detector array maXs-30 which is optimized for high resolution X-ray spectroscopy at energies up to 30 keV and the detector array polarmaXs for polarization sensitive high resolution X-ray spectroscopy and discuss their performances.