Evaluation of 256-pixel TES microcalorimeter arrays with electrodeposited Bi absorbers

U. Morita, Y. Yamakawa, T. Fujimori, Y. Ishisaki, T. Ohashi, Y. Takei, K. Yoshida, T. Yoshino, K. Mitsuda, N. Y. Yamasaki, R. Fujimoto, H. Sato, Y. Minoura, N. Takahashi, Takayuki Homma, Shuichi Shoji, Y. Kuroda, M. Onishi

    Research output: Contribution to journalArticle

    7 Citations (Scopus)

    Abstract

    We succeeded in fabricating 256-pixel arrays of Ti/Au transition edge sensor (TES) microcalorimeters with electrodeposited microabsorbers made of Bi, and report on their test results. We confirmed all pixels tested so far were alive, however most of the microabsorbers were stripped off during cooling cycles. We investigated some pixels by irradiating with 5.9 keV X-rays, and confirmed that they actually worked as microcalorimeters. The X-ray pulses are represented by a sum of two components with different decay times. The ratio of the two components fluctuates from pulse to pulse, which limits the energy resolution to ∼ 200 eV. We discuss the pulse shape of two decay-time components considering thermal conductivities, i.e., inside microabsorbers, between microabsorbers and TES.

    Original languageEnglish
    Pages (from-to)539-541
    Number of pages3
    JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
    Volume559
    Issue number2
    DOIs
    Publication statusPublished - 2006 Apr 14

    Fingerprint

    Sensor arrays
    calorimeters
    absorbers
    Pixels
    pixels
    evaluation
    sensors
    pulses
    X rays
    Sensors
    Thermal conductivity
    decay
    Cooling
    x rays
    thermal conductivity
    cooling
    cycles
    energy

    Keywords

    • Microabsorber
    • Superconducting transition edge sensor
    • X-ray detectors

    ASJC Scopus subject areas

    • Instrumentation
    • Nuclear and High Energy Physics

    Cite this

    Evaluation of 256-pixel TES microcalorimeter arrays with electrodeposited Bi absorbers. / Morita, U.; Yamakawa, Y.; Fujimori, T.; Ishisaki, Y.; Ohashi, T.; Takei, Y.; Yoshida, K.; Yoshino, T.; Mitsuda, K.; Yamasaki, N. Y.; Fujimoto, R.; Sato, H.; Minoura, Y.; Takahashi, N.; Homma, Takayuki; Shoji, Shuichi; Kuroda, Y.; Onishi, M.

    In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 559, No. 2, 14.04.2006, p. 539-541.

    Research output: Contribution to journalArticle

    Morita, U, Yamakawa, Y, Fujimori, T, Ishisaki, Y, Ohashi, T, Takei, Y, Yoshida, K, Yoshino, T, Mitsuda, K, Yamasaki, NY, Fujimoto, R, Sato, H, Minoura, Y, Takahashi, N, Homma, T, Shoji, S, Kuroda, Y & Onishi, M 2006, 'Evaluation of 256-pixel TES microcalorimeter arrays with electrodeposited Bi absorbers', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 559, no. 2, pp. 539-541. https://doi.org/10.1016/j.nima.2005.12.064
    Morita, U. ; Yamakawa, Y. ; Fujimori, T. ; Ishisaki, Y. ; Ohashi, T. ; Takei, Y. ; Yoshida, K. ; Yoshino, T. ; Mitsuda, K. ; Yamasaki, N. Y. ; Fujimoto, R. ; Sato, H. ; Minoura, Y. ; Takahashi, N. ; Homma, Takayuki ; Shoji, Shuichi ; Kuroda, Y. ; Onishi, M. / Evaluation of 256-pixel TES microcalorimeter arrays with electrodeposited Bi absorbers. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2006 ; Vol. 559, No. 2. pp. 539-541.
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    AU - Kuroda, Y.

    AU - Onishi, M.

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