The AMoRE-II Cryostat

23 Jul 2019, 14:15
15m
Auditorium G. Testori (Milano)

Auditorium G. Testori

Milano

Piazza Città di Lombardia, 1, 20124 Milano MI
Oral Presentation Detector readout, signal processing, and related technologies Orals LM 002

Speaker

C.S. Kang (Institute for Basic Science)

Description

The advanced Mo-based rare process experiment (AMoRE) is an international project to search for neutrinoless double beta decay (0νββ) of 100Mo using a large-scale low temperature detector. The project employs scintillating molybdate crystals for high-resolution detection of phonon and scintillation signals with MMC readouts at mK temperatures. AMoRE-II, the second phase of the project, is currently being prepared and will readout/operate 200 kg of molybdate crystals comprised of enriched 100Mo double-beta decaying isotopes. We report on the design and fabrication status of the AMoRE-II cryostat. The mass of the detector tower containing the crystals, copper frame, and lead and copper shields is about 3 ton. The detector tower has a mechanically soft thermal connection to the 1-m diameter mixing chamber plate of the cryostat, and has its own mechanical support system from outside of the cryostat. The system includes a dilution refrigerator, three pulse tube refrigerators, and a precooling unit for the detector tower. We will discuss the details of the refrigeration units, the vibration cares and the shield system of the AMoRE-II cryostat.

Less than 5 years of experience since completion of Ph.D N
Student (Ph.D., M.Sc. or B.Sc.) N

Primary authors

C.S. Kang (Institute for Basic Science) Dr Andreas Fleischmann (Heidelberg University) E.J. Jeon (Institute for Basic Science) J.A. Jeon (Institute for Basic Science) S.G. Kim (Institute for Basic Science) Ms SR Kim (Center for Underground Physics, Institute for Basic Science) Y.D. Kim Young-Hamb Kim (Institute for Basic Science) H.J. Lee J.S. Lee (Institute for Basic Science) K.S. Park (Institute for Basic Science) J.H. So

Presentation Materials