MKID Large Format Array Testbed

Lorenza Ferrari, Stephen J.C. Yates, Martin Eggens, Andrey M. Baryshev, Jochem J.A. Baselmans

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

The development of astrophysics kilo-pixel imaging systems requires a dedicated cryogenics and optics setup to measure the performance of the detector arrays in terms of sensitivity, crosstalk, dynamic range, and spatial response. We have developed such testbed for the characterization of large format arrays of microwave kinetic inductance detectors (MKIDs), capable of measuring detector chips of 6 cm × 6 cm, operating in the 350 and 850 GHz band. The testbed is a wide field camera that produces an aberration free image of the chip outside of the cryostat. The cryostat is based upon a commercial pulse-tube cooled 3 K system with an He3-He3-He4 sorption cooler that reaches a base temperature below 250 mK. We will describe the thermomechanical solutions implemented in our system to minimize the thermal loading on the cold stage, needed to reach the low base temperature. We will also give the optical design including straylight control.

Original languageEnglish
Pages (from-to)572-580
Number of pages9
JournalIEEE Transactions on Terahertz Science and Technology
Volume8
Issue number6
DOIs
Publication statusPublished - 2018

Keywords

  • Cryostat
  • detector
  • submm
  • test bed

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