SuperCDMS Detector Readout Cryogenic Hardware Conference Paper uri icon

abstract

  • SuperCDMS employs 1-inch thick gennanium crystals operated below 50mK in a dilution cryostat. Each detector produces ionization and phonon signals. Ionization signals are amplified by JFETs operating at 150K within an assembly mounted on the 4K cryostat stage. These high impedance signals are carried to the FETs by superconducting "vacuum coaxes" which minimize thermal conductivity, stray capacitance, and microphonics. Transition edge sensors produce low-impedance phonon signals, amplified by SQUID arrays mounted on a 600mK stage. Detectors are mounted in a six-sided wiring configuration called a "tower", which carries signals from 40mK to 4K. A flex circuit 3 meters in length carries amplified signals for each detector from 4K to a vacuum bulkhead. We describe the methods used to support the detectors, wiring and amplifier elements at various thermal stages, minimizing electrical noise and thermal loads. 2009 American Institute of Physics.

name of conference

  • THE THIRTEENTH INTERNATIONAL WORKSHOP ON LOW TEMPERATURE DETECTORSLTD13

published proceedings

  • LOW TEMPERATURE DETECTORS LTD 13

author list (cited authors)

  • Seitz, D. N., Ahmed, Z., Akerib, D. S., Arrenberg, S., Bailey, C. N., Balakishiyeva, D., ... Young, B. A.

citation count

  • 1

complete list of authors

  • Seitz, DN||Ahmed, Z||Akerib, DS||Arrenberg, S||Bailey, CN||Balakishiyeva, D||Baudis, L||Bauer, DA||Beaty, J||Brink, PL||Bruch, T||Bunker, R||Cabrera, B||Caldwell, DO||Clark, K||Cooley, J||Cushman, P||DeJongh, F||Dragowsky, MR||Duong, L||Figueroa-Feliciano, E||Filippini, J||Fritts, M||Golwala, SR||Grant, DR||Hall, J||Hennings-Yeomans, R||Hertel, S||Homgren, D||Hsu, L||Huber, ME||Kamaev, O||Kiveni, M||Kos, M||Leman, SW||Mahapatra, R||Mandic, V||Moore, D||McCarthy, KA||Mirabolfathi, N||Nelson, H||Novak, L||Ogburn, RW||Pyle, M||Qiu, X||Ramberg, E||Rau, W||Reisetter, A||Saab, T||Sadoulet, B||Sander, J||Schnee, RW||Serfass, B||Sundqvist, KM||Tomada, A||Wang, G||Wikus, P||Yellin, S||Yoo, J||Young, BA

publication date

  • January 2009