Detection of synchrotron radiation by Nb-based superconducting tunnel junctions

K. Maehata, K. Ishibashi, H. Nakagawa, H. Akoh, S. Takada, T. Nakashima, H. Shimizu, M. Yoshizawa, M. Katagiri

Research output: Contribution to journalArticle

Abstract

Monoenergetic X-rays extracted from synchrotron radiation were detected by two kinds of Nb-based superconducting tunnel junctions. Each of junctions had been fabricated by using different fabrication processes. Measurements were carried out under severe noisy circumstances. A cooled-FET preamplifier was employed to improve the signal to noise ratio. Pulse height distributions of the output signal of the preamplifier were obtained for monoenergetic X-rays in a range of 4 to 15 keV. Values of the energy for single electron collection were found to exhibit a nonlinear dependence on the energy of incident X-rays.

Original languageEnglish
Pages (from-to)29-34
Number of pages6
JournalDenshi Gijutsu Sogo Kenkyusho Iho/Bulletin of the Electrotechnical Laboratory
Volume61
Issue number6-7
Publication statusPublished - Dec 1 1997

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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    Maehata, K., Ishibashi, K., Nakagawa, H., Akoh, H., Takada, S., Nakashima, T., Shimizu, H., Yoshizawa, M., & Katagiri, M. (1997). Detection of synchrotron radiation by Nb-based superconducting tunnel junctions. Denshi Gijutsu Sogo Kenkyusho Iho/Bulletin of the Electrotechnical Laboratory, 61(6-7), 29-34.