Observation of bias-specific telegraph noise in large transition-edge sensors

Published

December 11, 2012

Author(s)

Vincent Y. Kotsubo, Douglas A. Bennett, Mark Croce, Michael W. Rabin, Daniel R. Schmidt, Joel N. Ullom

Abstract

We have observed anomalous random telegraph noise in discrete regions of voltage bias throughout the superconducting transition in larger transition-edge sensors (TESs). The bimodal nature of these noise features is consistent with thermally activated switching across discrete jumps in the TES resistance. When a TES is biased near one of these regions, or the peak of the pulse response samples one of these regions, the energy resolution suffers. In this manuscript, we will present detailed measurements of these noise features in one of our TESs optimized for alpha-particle spectrometry.

Citation

IEEE Transactions on Applied Superconductivity

Volume

23

Issue

3

Pub Type

Journals

Download Paper

https://doi.org/10.1109/TASC.2012.2233531

Keywords

transition edge sensors, superconducting transition, microcalorimeter, telegraph noise

Citation

Kotsubo, V. , Bennett, D. , Croce, M. , Rabin, M. , Schmidt, D. and Ullom, J. (2012), Observation of bias-specific telegraph noise in large transition-edge sensors, IEEE Transactions on Applied Superconductivity, [online], https://doi.org/10.1109/TASC.2012.2233531 (Accessed April 25, 2024)