Susceptibility Study of TES Micro‑calorimeters for X‑ray Spectroscopy Under FDM Readout

We present a characterization of the sensitivity of TES X-ray micro-calorimeters to environmental conditions under frequency-domain multiplexing (FDM) readout. In the FDM scheme, each TES in a readout chain is in series with a LC band-pass filter and AC biased with an independent carrier at MHz range. Using TES arrays, cold readout circuitry and...

Readout of a 176 pixel FDM system for SAFARI TES arrays

In this paper we present the results of our 176-pixel prototype of the FDM readout system for SAFARI, a TES-based focal-plane instrument for the far-IR SPICA mission. We have implemented the knowledge obtained from the detailed study on electrical crosstalk reported previously. The effect of carrier leakage is reduced by a factor two, mutual...

Project Jackal Final Report

For companies that deliver hardware services, the ability to scale dynamically has many advantages. In a special case, a company may have some computing resources available and desire to scale out when traffic peaks. A periodical budget may then be allocated, which needs to be used efficiently. This can be achieved through a combination of...

AC bias characterization of low noise bolometers for SAFARI using an open-loop frequency domain SQUID-based multiplexer operating between 1 and 5 MHz

SRON is developing the Frequency Domain Multiplexing (FDM) read-out and the ultra low NEP TES bolometers array for the infra-red spectrometer SAFARI on board of the Japanese space mission SPICA. The FDM prototype of the instrument requires critical and complex optimizations. For single pixel characterization under AC bias we are developing a...