Abstract
SRON is developing an electronic read-out system for an array of transition edge sensors (TES) based on the techniques of frequency domain multiplexing (FDM) and base-band feedback (BBFB). The astronomical applications of our system are the read-out of soft X-ray micro-calorimeters in a potential instrument on the European X-ray mission-under-study Athena and far-IR bolometers for the SAFARI instrument on the Japanese mission SPICA. In this paper we demonstrate the simultaneous locking of up to 51 BBFB loops. While locked, the in-band read-out noise of the loops is shown to reach the 10~pA/√Hz level required for these missions.
| Original language | English |
|---|---|
| Pages (from-to) | 652-657 |
| Journal | Journal of Low Temperature Physics |
| Volume | 167 |
| Issue number | 5-6 |
| DOIs | |
| Publication status | Published - 2012 |
| MoE publication type | A1 Journal article-refereed |
Keywords
- Bolometers
- frequency domain multiplexing
- microcalorimeters
- multiplexed read-out
- transition edge sensors