Investigation of Large Coupling Between TES X-Ray Microcalorimeter and Microwave Multiplexer Based on Microstrip SQUID

被引：8

作者：

Nakashima, Yuki ^{[1
,2
]}

Hirayama, Fuminori ^{[3
]}

Kohjiro, Satoshi ^{[3
]}

Yamamori, Hirotake ^{[3
]}

Nagasawa, Shuichi ^{[3
]}

Sato, Akira ^{[3
]}

Yamasaki, Noriko Y. ^{[1
,2
]}

Mitsuda, Kazuhisa ^{[1
,2
]}

机构：

[1] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2525210, Japan

[2] Univ Tokyo, Grad Sch Sci, Tokyo 1130033, Japan

[3] Natl Inst Adv Ind Sci & Technol, Nanoelect Res Inst, Tsukuba, Ibaraki 3058568, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2019年 / 29卷 / 05期

关键词：

Superconducting quantum interference device (SQUID); microwave resonator; multiplexing readout; transition-edge sensor (TES) x-ray microcalorimeter;

D O I：

10.1109/TASC.2019.2905688

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We report on the study of amicrowave superconducting quantum interference device (SQUID) multiplexer (MW-Mux) with current noise lower than that of our typical transition-edge sensor (TES) X-ray microcalorimeter. A large mutual inductance, between SQUID loop and input inductor connected to a TES X-ray microcalorimeter in series, realizes such low current noise referred to the SQUID input, but also can cause undesirable resonances which affect the SQUID performances. In this paper, we have developed the MW-Mux with mutual inductance of about 370 pH, which is six times larger than that of the previous one, by adopting a spiral input coil longer than a half wavelength at the readout microwave frequency. Its characteristics are evaluated, and the results have shown that the distortion of the SQUID characteristics and the degradation of its noise performance are not clearly observed. Finally, we have developed an MW-Mux microstrip SQUID with a low current noise of < 20 pA/root Hz which is below the typical noise of our TES X-ray microcalorimeter, 30 pA/root Hz.

引用

页数：5

共 20 条

[1]

[Anonymous], 2004, INTRO SOLID STATE PH

[2]

[Anonymous], P SPIE C SER

[3] Athena: the X-ray observatory to study the hot and energetic Universe [J].