In-flight gain monitoring of SPIDER's transition-edge sensor arrays
Abstract
Experiments deploying large arrays of transition-edge sensors (TESs) often require a robust method to monitor gain variations with minimal loss of observing time. We propose a sensitive and non-intrusive method for monitoring variations in TES responsivity using small square waves applied to the TES bias. We construct an estimator for a TES's small-signal power response from its electrical response that is exact in the limit of strong electrothermal feedback. We discuss the application and validation of this method using flight data from SPIDER, a balloon-borne telescope that observes the polarization of the cosmic microwave background with more than 2000 TESs. This method may prove useful for future balloon- and space-based instruments, where observing time and ground control bandwidth are limited.
Keywords
Cite
@article{arxiv.2112.00820,
title = {In-flight gain monitoring of SPIDER's transition-edge sensor arrays},
author = {J. P. Filippini and A. E. Gambrel and A. S. Rahlin and E. Y. Young and P. A. R. Ade and M. Amiri and S. J. Benton and A. S. Bergman and R. Bihary and J. J. Bock and J. R. Bond and J. A. Bonetti and S. A. Bryan and H. C. Chiang and C. R. Contaldi and O. Dore and A. J. Duivenvoorden and H. K. Eriksen and M. Farhang and A. A. Fraisse and K. Freese and M. Galloway and N. N. Gandilo and K. Ganga and R. Gualtieri and J. E. Gudmundsson and M. Halpern and J. Hartley and M. Hasselfield and G. Hilton and W. Holmes and V. V. Hristov and Z. Huang and K. D. Irwin and W. C. Jones and A. Karakci and C. L. Kuo and Z. D. Kermish and J. S. -Y. Leung and S. Li and D. S. Y. Mak and P. V. Mason and K. Megerian and L. Moncelsi and T. A. Morford and J. M. Nagy and C. B. Netterfield and M. Nolta and R. O'Brient and B. Osherson and I. L. Padilla and B. Racine and C. Reintsema and J. E. Ruhl and M. C. Runyan and T. M. Ruud and J. A. Shariff and E. C. Shaw and C. Shiu and J. D. Soler and X. Song and A. Trangsrud and C. Tucker and R. S. Tucker and A. D. Turner and J. F. van der List and A. C. Weber and I. K. Wehus and S. Wen and D. V. Wiebe},
journal= {arXiv preprint arXiv:2112.00820},
year = {2022}
}
Comments
7 pages, 3 figures; Proceedings of the 19th International Workshop on Low Temperature Detectors (LTD19); Minor updates to match published version