TY - JOUR
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, K.
AU - Yasumune, T.
AU - Iyomoto, N.
N1 - Funding Information:
This work was supported in part by Japan Society for the Promotion of Science (JSPS) under the Fellow ID P09307, and also by Japan Science and Technology Agency (JST) under the project “Development of Systems and Technology for Advanced Measurements and Analysis”. The TES detector was fabricated at the VLSI Design and education centre (VDEC), University of Tokyo.
PY - 2012/11/1
Y1 - 2012/11/1
N2 - 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.
AB - 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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U2 - 10.1016/j.nima.2012.06.049
DO - 10.1016/j.nima.2012.06.049
M3 - Article
AN - SCOPUS:84864401174
SN - 0168-9002
VL - 691
SP - 30
EP - 33
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
ER -