학술논문
Optimization of Transition Edge Sensor Arrays for Cosmic Microwave Background Observations with the South Pole Telescope
Document Type
article
Author
Ding, J; Ade, PAR; Anderson, AJ; Avva, J; Ahmed, Z; Arnold, K; Austermann, JE; Bender, AN; Benson, BA; Bleem, LE; Byrum, K; Carlstrom, JE; Carter, FW; Chang, CL; Cho, HM; Clich, JF; Cukierman, A; Czaplewski, D; Divan, R; De Haan, T; Dobbs, MA; Dutcher, D; Everett, W; Gilbert, A; Gannon, R; Guyser, R; Halverson, NW; Harrington, NL; Hattori, K; Henning, JW; Hilton, GC; Holzapfel, WL; Hubmayr, J; Huang, N; Irwin, KD; Jeong, O; Khaire, T; Kubik, D; Kuo, CL; Lee, AT; Leitch, EM; Meyer, SS; Miller, CS; Montgomery, J; Nadolski, A; Natoli, T; Nguyen, H; Novosad, V; Padin, S; Pan, Z; Pearson, J; Posada, CM; Rahlin, A; Reichardt, CL; Ruhl, JE; Saliwanchik, BR; Sayre, JT; Shariff, JA; Shirley, I; Shirokoff, E; Smecher, G; Sobrin, J; Stan, L; Stark, AA; Story, K; Suzuki, A; Tang, QY; Thakur, RB; Thompson, KL; Tucker, C; Vanderlinde, K; Vieira, JD; Wang, G; Whitehorn, N; Wu, WLK; Yefremenko, V; Yoon, KW
Source
IEEE Transactions on Applied Superconductivity. 27(4)
Subject
Language
Abstract
In this paper, we describe the optimization of transition-edge-sensor (TES) detector arrays for the third-generation camera for the South Pole Telescope. The camera, which contains ~ 16 000 detectors, will make high-angular-resolution maps of the temperature and polarization of the cosmic microwave background. Our key results are scatter in the transition temperature of Ti/Au TESs is reduced by fabricating the TESs on a thin Ti(5 nm)/Au(5 nm) buffer layer and the thermal conductivity of the legs that support our detector islands is dominated by the SiOx dielectric in the microstrip transmission lines that run along the legs.