| Zugriffsnummer | 25299 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | Code-division multiplexing of superconducting transition-edge sensor arrays |
| Autor(in); Institution |
Irwin, K. D.; National Institute of Standards and Technology, Boulder, Colo., USA
Niemack, M. D.; National Institute of Standards and Technology, Boulder, Colo., USA
Beyer, Jörn; 7.5, Kryo- und Vakuumphysik, PTB-Berlin
Cho, H. M.; National Institute of Standards and Technology, Boulder, Colo., USA
Doriese, W. B.; National Institute of Standards and Technology, Boulder, Colo., USA
Hilton, G. C.; National Institute of Standards and Technology, Boulder, Colo., USA
Reintsema, C. D.; National Institute of Standards and Technology, Boulder, Colo., USA
Schmidt, D. R.; National Institute of Standards and Technology, Boulder, Colo., USA
Ullmon, J. N.; National Institute of Standards and Technology, Boulder, Colo., USA
Vale, L. R.; National Institute of Standards and Technology, Boulder, Colo., USA
|
| Quelle/Jahr | Superconductor Science and Technology: 23 (2010), 3, 034004 - 7 S. |
| ISSN | 0953-2048 ; 1361-6668 |
| DOI | |
| URL | |
| Verlag | Bristol: IOP Publ. |
| Klassifikationscode | PACS: 85.25.Dq ; PACS: 07.20.Mc ; PACS: 84.30.Le ; PACS: 07.07.Df |
| Zusammenfassung | Multiplexed superconducting quantum interference device (SQUID) amplifiers have recently enabled the deployment of kilopixel arrays of superconducting transition-edge sensor (TES) detectors on a variety of receivers for astrophysics. Existing multiplexing techniques for TES arrays, however, have constraints due to aliasing of SQUID noise, the size of the required filtering elements, or the complexity of the room-temperature electronics that make it difficult to scale to much larger arrays. We have developed a Walsh code-division SQUID multiplexer that has the potential to enable the multiplexing of larger arrays or pixels with faster thermal response times. The multiplexer uses superconducting switches to modulate the polarity of coupling between N individual TES detectors and a single output SQUID channel. The polarities of the detector signals are switched in the pattern of an N × N Walsh matrix, so a frame composed of N orthogonal samples can be used to reconstruct the detector signals without degradation. We present an analysis of the circuit architecture and preliminary results. |
Zitierung
Irwin, K. D., Niemack, M. D., Beyer, J., Cho, H. M., Doriese, W. B., Hilton, G. C., Reintsema, C. D., Schmidt, D. R., Ullmon, J. N., & Vale, L. R. (2010). Code-division multiplexing of superconducting transition-edge sensor arrays. Superconductor Science and Technology, 23(3), 034004–7 S. https://doi.org/10.1088/0953-2048/23/3/034004