Irradiation Tests of Superconducting Detectors and Comparison with Simulations

Y. Minami, Y. Akiba, S. Beckman, M. Hazumi, C. Kuo, N. A. Kurinsky, H. Kutsuma, A. T. Lee, S. Mima, C. R. Raum, T. Sasse, S. L. Stever, A. Suzuki, B. Westbrook

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


For the future satellite mission at the second sun–earth Lagrangian point (L2), we need to mitigate phonon propagation created by cosmic rays to superconducting detectors. We simulate phonon propagation in silicon substrate and show that putting a metal layer on the substrate or making hole in the substrate reduces the propagation. We also show a function which shows the response of a TES bolometer on a substrate. To validate these theoretical expectations, we make irradiation tests using two types of superconducting detectors: transition edge sensor bolometers and kinetic inductance detectors. From the tests, we show that putting metal can reduce correlations between detectors and number of hit events from charged particles.

Original languageEnglish
Pages (from-to)118-129
Number of pages12
JournalJournal of Low Temperature Physics
Issue number1-2
Publication statusPublished - Apr 1 2020
Externally publishedYes


  • Cosmic microwave background
  • Kinetic inductance detectors
  • Phonon
  • Transition edge sensors

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics


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