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- Title
Absolute Energy Calibration of X-ray TESs with 0.04 eV Uncertainty at 6.4 keV in a Hadron-Beam Environment.
- Authors
Tatsuno, H.; Doriese, W.; Bennett, D.; Curceanu, C.; Fowler, J.; Gard, J.; Gustafsson, F.; Hashimoto, T.; Hayano, R.; Hays-Wehle, J.; Hilton, G.; Iliescu, M.; Ishimoto, S.; Itahashi, K.; Iwasaki, M.; Kuwabara, K.; Ma, Y.; Marton, J.; Noda, H.; O'Neil, G.
- Abstract
A performance evaluation of superconducting transition-edge sensors (TESs) in the environment of a pion beam line at a particle accelerator is presented. Averaged across the 209 functioning sensors in the array, the achieved energy resolution is 5.2 eV FWHM at Co $$K_{\alpha }$$ (6.9 keV) when the pion beam is off and 7.3 eV at a beam rate of 1.45 MHz. Absolute energy uncertainty of $$\pm $$ 0.04 eV is demonstrated for Fe $$K_{\alpha }$$ (6.4 keV) with in-situ energy calibration obtained from other nearby known X-ray lines. To achieve this small uncertainty, it is essential to consider the non-Gaussian energy response of the TESs and thermal cross-talk pile-up effects due to charged particle hits in the silicon substrate of the TES array.
- Subjects
HADRONS; PARTICLE beams; X-rays; NUCLEAR energy; PARTICLE detectors; SUPERCONDUCTING transitions
- Publication
Journal of Low Temperature Physics, 2016, Vol 184, Issue 3/4, p930
- ISSN
0022-2291
- Publication type
Article
- DOI
10.1007/s10909-016-1491-2