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arXiv 1601.03293physics.ins-det
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在强子束环境中在6.4 keV处具有0.04 eV不确定度的X射线TES的绝对能量刻度

Absolute Energy Calibration of X-ray TESs with 0.04 eV Uncertainty at 6.4 keV in a Hadron-Beam Environment

H. Tatsuno, W. B. Doriese, D. A. Bennett, C. Curceanu, J. W. Fowler, J. Gard, F. P. Gustafsson, T. Hashimoto, R. S. Hayano, J. P. Hays-Wehle, G. C. Hilton, M. I… 展开作者

H. Tatsuno, W. B. Doriese, D. A. Bennett, C. Curceanu, J. W. Fowler, J. Gard, F. P. Gustafsson, T. Hashimoto, R. S. Hayano, J. P. Hays-Wehle, G. C. Hilton, M. Iliescu, S. Ishimoto, K. Itahashi, M. Iwasaki, K. Kuwabara, Y. Ma, J. Marton, H. Noda, G. C. O'Neil, S. Okada, H. Outa, C. D. Reintsema, M. Sato, D. R. Schmidt, H. Shi, K. Suzuki, T. Suzuki, J. Uhlig, J. N. Ullom, E. Widmann, S. Yamada, J. Zmeskal, D. S. Swetz

摘要:

介绍了在粒子加速器的π介子束流环境中超导过渡边传感器的性能评估。在阵列中的209个功能传感器上平均,当π介子束关闭时,在Co $K_α$(6.9 keV)处实现的能量分辨率为5.2 eV FWHM,并且在1.45 MHz的束速率下实现的能量分辨率为7.3 eV。铁$K_α$(6.4千电子伏)的$\pm$ 0.04 eV的绝对能量不确定性证明与现场能量校准从其他附近已知的X射线线。为了实现这个小的不确定性,它是必不可少的,以考虑非高斯能量响应的TES和热串扰堆积效应,由于带电粒子击中硅基板的TES阵列。

英文摘要:

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 $K_α$ (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 $K_α$ (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.

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