[17a-Z22-1~10] 11.4 Analog applications and their related technologies

[17a-Z22-7] Characterization of Uniformity in Multipixel Transition-Edge Sensors with Dependence on Magnetic Field

〇(D)Yuki Imai^1,3, Fuminori Hirayama¹, Yuki Nakashima¹, Satoshi Kohjiro¹, Hirotake Yamamori¹, Kenichiro Nagayoshi², Hiroki Akamatsu², Kosuke Sato³ (1.AIST, 2.SRON, 3.Saitama Univ.)

Keywords:Transition-Edge Sensor, TES, superconducting quantum interference device, SQUID

It has been reported that the high energy resolution of Transition-Edge Sensor (TES) is degraded by magnetic fields, and optimal control of the magnetic field environment is essential for the development of TES array. In this study, we constructed a measurement system that can identify and remove the residual magnetic field by actively applying a uniform magnetic field. We have successfully measured the energy of X-ray photons in 46 TES pixels after removing the residual magnetic field.