中国物理B ›› 2023, Vol. 32 ›› Issue (10): 108501-108501.doi: 10.1088/1674-1056/acd7d4
Qingxiao Ma(马卿效)1,2, Wen Zhang(张文)1,†, Peizhan Li(李佩展)1,2, Zheng Wang(王争)1, Zhifa Feng(冯志发)1,2, Xinkai Yang(杨心开)1,2, Jiaqiang Zhong(钟家强)1, Wei Miao(缪巍)1, Yuan Ren(任远)1, Jing Li(李婧)1, and Shengcai Shi(史生才)1
Qingxiao Ma(马卿效)1,2, Wen Zhang(张文)1,†, Peizhan Li(李佩展)1,2, Zheng Wang(王争)1, Zhifa Feng(冯志发)1,2, Xinkai Yang(杨心开)1,2, Jiaqiang Zhong(钟家强)1, Wei Miao(缪巍)1, Yuan Ren(任远)1, Jing Li(李婧)1, and Shengcai Shi(史生才)1
摘要: We develop an x-ray Ti/Au transition-edge sensor (TES) with an Au absorber deposited on the center of TES and improved its energy resolution using the K-means clustering algorithm in combination with Wiener filter. We firstly extract the main parameters of each recorded pulse trace, which are adopted to classify these traces into several clusters in the K-means clustering algorithm. Then real traces are selected for energy resolution analysis. Following the baseline correction, the Wiener filter is used to improve the signal-to-noise ratio. Although the silicon underneath the TES has not been etched to reduce the thermal conductance, the energy resolution of the developed x-ray TES is improved from 94 eV to 44 eV at 5.9 keV.
中图分类号: (Superconducting optical, X-ray, and γ-ray detectors (SIS, NIS, transition edge))