| タイトル | Multi-Absorber Transition-Edge Sensors for X-Ray Astronomy Applications |
| 本文（外部サイト） | http://hdl.handle.net/2060/20120012855 |
| 著者（英） | Busch, S. E.; Sadleir, J. E.; Ewin, A. J.; Bandler, S. R.; Wassell, E. J.; Porter, F. S.; Kelley, R. L.; Eckart, M. E.; Porst, J. P.; Finkbeiner, F. M.; Kelly, D. P.; Adams, J. S.; Chervenak, J. A.; Smith, S. J.; Kilbourne, C. A. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 2012-01-01 |
| 言語 | eng |
| 内容記述 | We are developing multi-absorber Transition-Edge Sensors (TESs) for applications in x-ray astronomy. These position-sensitive devices consist of multiple x-ray absorbers each with a different thermal coupling to a single readout TES. Heat diffusion between the absorbers and the TES gives rise to a characteristic pulse shape corresponding to each absorber element and enables position discrimination. The development of these detectors is motivated by a desire to maximize focal plane arrays with the fewest number of readout channels. In this contribution we report on the first results from devices consisting of nine) 65 X 65 sq. microns Au x-ray absorbers) 5 microns thick. These are coupled to a single 35 X 35 sq. microns Mo/Au bilayer TES. These devices have demonstrated full-width-half-maximum (FWHM) energy resolution of 2.1 eV at 1.5 keV) 2.5 eV at 5.9 keV and 3.3 eV at 8 keV. This is coupled with position discrimination from pulse shape over the same energy range. We use a finite-element model to reproduce the measured pulse shapes and investigate the detector non-linearity with energy) which impacts on the devices position sensitivity and energy resolution. |
| NASA分類 | Instrumentation and Photography |
| レポートNO | GSFC.ABS.6329.2012 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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