A microstrip-coil integration on superconducting tunnel junctions for X-ray detection

Tohru Taino, Hiroshi Nakagawa, Masahiro Aoyagi, Hiroshi Sato, Hiroshi Akoh, Keisuke Maehata, Kenji Ishibashi, Hiromi Sato, Tokihiro Ikeda, Chiko Otani, Wataru Ootani, Takayuki Oku, Hiroshi Kato, Kazuhiko Kawai, Hirohiko M. Shimizu, Yoshiyuki Takizawa, Hiromasa Miyasaka, Hiroshi Watanabe

Research output: Contribution to journalConference articlepeer-review

5 Citations (Scopus)


We report the first demonstration of X-ray detection by using a Superconducting Tunnel Junction (STJ) with a microstrip-coil. The STJ was fabricated based on Nb/Al/AlOx/Nb integration process technology using a 2μm design rule. Magnetic field was applied into the STJ by the microstrip-coil to suppress the dc Josephson current instead of the conventional electromagnet. The output waveform was successfully observed by irradiation of 5.9 keV X-ray under a condition of microstrip-coil current of 20 mA at 0.4 K.

Original languageEnglish
Pages (from-to)700-703
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Issue number1 I
Publication statusPublished - Mar 2001
Event2000 Applied Superconductivity Conference - Virginia Beach, VA, United States
Duration: Sept 17 2000Sept 22 2000

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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