Time-division multiplexing of high-resolution x-ray microcalorimeters: Four pixels and beyond
| Autor: | William B. Doriese, J. N. Ullom, S. Deiker, J. A. Beall, W. D. Duncan, L. Ferreira, Gene C. Hilton, Kent D. Irwin, Y. Xu, L. R. Vale, C. D. Reintsema |
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| Rok vydání: | 2004 |
| Předmět: | |
| Zdroj: | Applied Physics Letters. 85:4762-4764 |
| ISSN: | 1077-3118 0003-6951 |
| DOI: | 10.1063/1.1823041 |
| Popis: | We present experimental results from a four-pixel array of transition-edge-sensor, x-ray microcalorimeters read out through a single amplifier channel via a time-division superconducting quantum interference device multiplexer. We map the dependence of the x-ray energy resolution of the microcalorimeters on multiplexer timing parameters. We achieve multiplexed, four-pixel resolution of 6.94±0.05eV full width at half maximum of the MnKα complex near 5.9keV, which is a degradation of only 0.44eV from nonmultiplexed operation. An analysis of straightforward upgrades to the multiplexer predicts that a linear array of 32 of these pixels could be multiplexed with a degradation in resolution of only 0.1eV. These results, the first demonstration of a time-division multiplexer for x-ray detectors, establish a clear path to the instrumentation of a kilopixel microcalorimeter array. |
| Databáze: | OpenAIRE |
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