The Design and Characterization of Dielectric Microcalorimeters for X-ray Photon Detection

T. Kikuchi, M. Hoshino, T. Nakayama, N. Y. Yamasaki, Keisuke Maehata, K. Mitsuda

Research output: Contribution to journalArticle

Abstract

The dielectric micro calorimeter (DMC) is a novel radiation detector utilizing a GHz resonator with dielectric thermometer (Sekiya et al. in J Low Temp Phys 167:435, 2012). The advantage of using a DMC is that the detection mechanism is based on a phonon mediation without Johnson noise and quasi-particle decay process. A large format array of DMCs can be easily multiplexed by a resonator circuit in the readout at GHz band width. We describe the design of a DMC as an X-ray photon counter. It is optimized to detect photon at 5.9 keV energy. We consider 18O-doped SrTiO3 (STO18) and Nb-doped KTa( 1 - x )NbxO3 (KTN) as a candidate of dielectric thermometer. Dielectric materials which have sensitivity α(= dlog Cel/ dlog T) are also ideal for our application. We check that both STO18 and KTN have α∼ 10 3 at 100 mK. If we assume a DMC resonator operating at 100 mK, we need a Q value of a resonator to be 2000 for X-ray detection.

Original languageEnglish
Pages (from-to)250-256
Number of pages7
JournalJournal of Low Temperature Physics
Volume184
Issue number1-2
DOIs
Publication statusPublished - Jul 1 2016

Fingerprint

calorimeters
Photons
X rays
Calorimeters
photons
Resonators
resonators
x rays
Thermometers
thermometers
particle decay
Radiation detectors
mediation
radiation detectors
elementary excitations
format
readout
counters
bandwidth
Bandwidth

All Science Journal Classification (ASJC) codes

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

Cite this

The Design and Characterization of Dielectric Microcalorimeters for X-ray Photon Detection. / Kikuchi, T.; Hoshino, M.; Nakayama, T.; Yamasaki, N. Y.; Maehata, Keisuke; Mitsuda, K.

In: Journal of Low Temperature Physics, Vol. 184, No. 1-2, 01.07.2016, p. 250-256.

Research output: Contribution to journalArticle

Kikuchi, T. ; Hoshino, M. ; Nakayama, T. ; Yamasaki, N. Y. ; Maehata, Keisuke ; Mitsuda, K. / The Design and Characterization of Dielectric Microcalorimeters for X-ray Photon Detection. In: Journal of Low Temperature Physics. 2016 ; Vol. 184, No. 1-2. pp. 250-256.
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