Performance of an X-ray single pixel TES microcalorimeter under DC and AC biasing
| Autor: | Gottardi, Luciano, van der Kuur, Jan, de Korte, Piet A. J., Hartog, Roland Den, Dirks, Bob, Popescu, Manuela, Hoevers, Henk F. C., Bruijn, Marcel, Borderias, Maria Parra, Takei, Y. |
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| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | AIP Conf. Proc. 1185, 538 (2009) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1063/1.3292399 |
| Popis: | We are developing Frequency Domain Multiplexing (FDM) for the read-out of TES imaging microcalorimeter arrays for future X-ray missions like IXO. In the FDMconfiguration the TES is AC voltage biased at a well defined frequencies (between 0.3 to 10MHz) and acts as an AM modulating element. In this paper we will present a full comparison of the performance of a TES microcalorimeter under DC bias and AC bias at a frequency of 370kHz. In both cases we measured the current-to-voltage characteristics, the complex impedance, the noise, the X-ray responsivity, and energy resolution. The behaviour is very similar in both cases, but deviations in performances are observed for detector working points low in the superconducting transition (R/RN < 0.5). The measured energy resolution at 5.89keV is 2.7eV for DC bias and 3.7eV for AC bias, while the baseline resolution is 2.8eV and 3.3eV, respectively. Comment: 4 pages, 5 figuers, the Thirteenth International Workshop on Low Temperature Detectors LTD13 |
| Databáze: | arXiv |
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