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Proceedings Paper

Multipixel readout of TES calorimeters
Author(s): Naoko Iyomoto; Taro Ichitsubo; Tai Oshima; Kazuhisa Mitsuda; Ryuichi Fujimoto; Kazuo Futamoto; Yoh Takei; Tamayuki Fujimori; Toshiyuki Miyazaki; Yoshitaka Ishisaki; Teppei Hiroike; Umeyo Morita; Noriko Y. Yamasaki; Takeo Koga; Kosuke Sato; Takaya Ohashi; Shuichi Shoji; Hiroyuki Kudo; Tomoaki Nakamura; Takahiro Arakawa; Hirotaka Sato; Hideomi Kobayashi; Takayuki Homma; Tetsuya Osaka; Satoshi Nakayama; Toshimitsu Morooka; Kazuo Chinone; Keiichi Tanaka; Yoshikatsu Kuroda; Mitsunobu Onishi; Masaya Goto
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Paper Abstract

We are developing a superconducting Transition-Edge Sensor (TES) calorimeter array. We adopt calorimeter multiplex in frequency domain to read signals from the calorimeter array with a small number of front-end electronics and wirings. We further utilize Calorimeter Bridge Biased by an AC Generator (CABBAGE) approach to eliminate the AC carrier in the output. We tested the method using a TES calorimeter, which has a transition temperature of 390 mK. Because of the high operating temperature, energy resolution of the calorimeter is limited to 200 eV at 5.9 keV even when it is biased with a DC current. We operated the calorimeter in CABBAGE circuit with 30 kHz sinusoidal bias and obtained an energy resolution of 250 eV. We found that there remains a small-amplitude residual in the output even at the bridge balance point. The residual contains not only 30 kHz component but also odd-order harmonics. We consider that this is due to the variation of the TES resistance with bias current. The 50 eV degradation of the energy resolution from DC to AC biases can be explained by the fact that some of signal power is carried in the odd-order harmonics, which we did not utilize in the data reduction process. We also succeeded to operate the CABBAGE by 100 kHz, although the energy resolution was degraded to 380 eV probably due to low response of the signal readout circuit at the frequency.

Paper Details

Date Published: 11 March 2003
PDF: 10 pages
Proc. SPIE 4851, X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy, (11 March 2003); doi: 10.1117/12.461307
Show Author Affiliations
Naoko Iyomoto, Institute of Space and Astronautical Science (Japan)
Taro Ichitsubo, Institute of Space and Astronautical Science (Japan)
Tai Oshima, Institute of Space and Astronautical Science (Japan)
Kazuhisa Mitsuda, Institute of Space and Astronautical Science (Japan)
Ryuichi Fujimoto, Institute of Space and Astronautical Science (Japan)
Kazuo Futamoto, Institute of Space and Astronautical Science (Japan)
Yoh Takei, Institute of Space and Astronautical Science (Japan)
Tamayuki Fujimori, Institute of Space and Astronautical Science (Japan)
Toshiyuki Miyazaki, Lawrence Livermore National Lab. (United States)
Yoshitaka Ishisaki, Tokyo Metropolitan Univ. (Japan)
Teppei Hiroike, Tokyo Metropolitan Univ. (Japan)
Umeyo Morita, Tokyo Metropolitan Univ. (Japan)
Noriko Y. Yamasaki, Tokyo Metropolitan Univ. (Japan)
Takeo Koga, Tokyo Metropolitan Univ. (Japan)
Kosuke Sato, Tokyo Metropolitan Univ. (Japan)
Takaya Ohashi, Tokyo Metropolitan Univ. (Japan)
Shuichi Shoji, Waseda Univ. (Japan)
Hiroyuki Kudo, Waseda Univ. (Japan)
Tomoaki Nakamura, Waseda Univ. (Japan)
Takahiro Arakawa, Waseda Univ. (Japan)
Hirotaka Sato, Waseda Univ. (Japan)
Hideomi Kobayashi, Waseda Univ. (Japan)
Takayuki Homma, Waseda Univ. (Japan)
Tetsuya Osaka, Waseda Univ. (Japan)
Satoshi Nakayama, Seiko Instruments Inc. (Japan)
Toshimitsu Morooka, Seiko Instruments Inc. (Japan)
Kazuo Chinone, Seiko Instruments Inc. (Japan)
Keiichi Tanaka, Seiko Instruments Inc. (Japan)
Yoshikatsu Kuroda, Mitsubishi Heavy Industries, Ltd. (Japan)
Mitsunobu Onishi, Mitsubishi Heavy Industries, Ltd. (Japan)
Masaya Goto, Mitsubishi Heavy Industries, Ltd. (Japan)

Published in SPIE Proceedings Vol. 4851:
X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy
Joachim E. Truemper; Harvey D. Tananbaum, Editor(s)

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