Journal of Low Temperature Physics

, Volume 176, Issue 3–4, pp 497–503 | Cite as

Towards X-ray Thermal Kinetic Inductance Detectors

  • A. MiceliEmail author
  • T. W. Cecil
  • L. Gades
  • O. Quaranta


Traditionally, kinetic inductance detectors (KIDs) have been thought of as non-equilibrium detectors, which detect the excess of quasiparticles from the absorbed photon. In this case, recombination of quasiparticles is the bottleneck that limits the quasiparticle lifetime. However, the response of a KID to an excess of quasiparticles from photon absorption gives a nearly identical response to the increase in quasiparticle density due to a temperature change. Thus, KIDs can be used as thermometers to detect the temperature rise in an absorber due to a thermalized X-ray photon. In this work, we present a working prototype of an X-ray thermal KID (i.e., TKID) using a tungsten silicide resonator with superconducting tantalum absorber on a silicon nitride membrane. Finally, we outline improvements for future designs.


Kinetic inductance detectors X-ray Thermal Microcalorimeter 


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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • A. Miceli
    • 1
    Email author
  • T. W. Cecil
    • 1
  • L. Gades
    • 1
  • O. Quaranta
    • 1
  1. 1.X-ray Science DivisionArgonne National LaboratoryArgonneUSA

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