Observation of very fast response signals from Pb absorber coupled transition edge sensor gamma-ray microcalorimeter

R. M.T. Damayanthi, M. Ohno, S. Hatakeyama, H. Takahashi, Keisuke Maehata, T. Yasumune, Naoko Iyomoto

Research output: Contribution to journalArticle

Abstract

We are developing a gamma-ray microcalorimeter for Positron Annihilation Spectroscopy. Our detector composed of a transition edge sensor (TES) thermometer and an epoxy coupled bulk Pb absorber has been reported an energy resolution of 4.7 keV FWHM at 662 keV with a tens of milliseconds long response time. To enhance the detector properties, we designed a new attachment method in the focus of improving the thermal coupling between the absorber and the TES. In the new design, we created epoxy-posts both on the TES film and on the absorber, and then they were connected together using an epoxy-dot put on the epoxy-post on the absorber. Measured current signal of this epoxy-post TES gamma-ray detector showed an ultra fast response with 80 μs fall time.

Original languageEnglish
Pages (from-to)30-33
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume691
DOIs
Publication statusPublished - Nov 1 2012

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Gamma rays
calorimeters
absorbers
gamma rays
sensors
Sensors
Detectors
detectors
Positron annihilation spectroscopy
Thermometers
thermometers
Full width at half maximum
positron annihilation
attachment
spectroscopy
energy

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

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abstract = "We are developing a gamma-ray microcalorimeter for Positron Annihilation Spectroscopy. Our detector composed of a transition edge sensor (TES) thermometer and an epoxy coupled bulk Pb absorber has been reported an energy resolution of 4.7 keV FWHM at 662 keV with a tens of milliseconds long response time. To enhance the detector properties, we designed a new attachment method in the focus of improving the thermal coupling between the absorber and the TES. In the new design, we created epoxy-posts both on the TES film and on the absorber, and then they were connected together using an epoxy-dot put on the epoxy-post on the absorber. Measured current signal of this epoxy-post TES gamma-ray detector showed an ultra fast response with 80 μs fall time.",
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T1 - Observation of very fast response signals from Pb absorber coupled transition edge sensor gamma-ray microcalorimeter

AU - Damayanthi, R. M.T.

AU - Ohno, M.

AU - Hatakeyama, S.

AU - Takahashi, H.

AU - Maehata, Keisuke

AU - Yasumune, T.

AU - Iyomoto, Naoko

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