[16p-K209-1~16] 11.4 Analog applications and their related technologies

1:45 PM - 2:00 PM JST(4:45 AM - 5:00 AM UTC)

[16p-K209-2] Control of the superconducting transition temperature for improving the energy resolution of TES microcalorimeters

〇Hanako Okumura^1,2, Yoshihiro Nakano^2,3, Keita Tanaka^2,3, Yuta Yagi^2,3, Tasuku Hayashi⁴, Noriko Yamasaki^1,2,3, Yoshinori Shohmitsu⁵ (1.Kitasato Univ., 2.ISAS/JAXA, 3.The Univ. of Tokyo, 4.Rikkyo Univ., 5.KEK)

Keywords:

transition edge sensors

TES Microcalorimeters are a type of X-ray microcalorimeter capable of achieving high energy resolution by utilizing the superconducting-to-normal transition of a metal in their thermometer component. Lowering the transition temperature of the thermometer is crucial for improving energy resolution. The transition temperature is influenced by factors such as the thickness of the metal thin film, the thickness ratio, and the deposition conditions. However, a reliable control process for the transition temperature has not yet been established. In this presentation, we will discuss the details of the experiments conducted to control the transition temperature.