TY - JOUR
T1 - Simulation of TES X-ray Microcalorimeters Designed for 14.4 keV Solar Axion Search
AU - Mori, Shohei
AU - Nishida, Y.
AU - Iyomoto, N.
AU - Yagi, Y.
AU - Konno, R.
AU - Hayashi, T.
AU - Tanaka, K.
AU - Yamasaki, N. Y.
AU - Mitsuda, K.
AU - Sato, R.
AU - Saito, M.
AU - Homma, T.
N1 - Funding Information:
This work was supported by JSPS KAKENHI Grant Number 21H03738.
Publisher Copyright:
© 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
PY - 2022/11
Y1 - 2022/11
N2 - This study attempted to develop detection methods for solar axions using transition-edge-sensor (TES) microcalorimeters. Since the axion absorber comprised of iron-57 (57Fe) is electroplated upon the membrane instead of directly onto the TES itself (with the absorber hence thermally connected to the TES via a gold thermal strap), some of the heat deposited into the absorber consequently escapes into the heat bath through the membrane before being detected by the TES. If the heat-loss depends upon the axion interaction position within the absorber, position dependence may degrade the energy resolution. Therefore, this study endeavored to evaluate the dependence of heat-loss and pulse shape on axion incident position with the COMSOL Multiphysics software package (using a finite element method). In addition, heat-loss and pulse shape were likewise evaluated when the energy was deposited directly within the gold thermal strap.
AB - This study attempted to develop detection methods for solar axions using transition-edge-sensor (TES) microcalorimeters. Since the axion absorber comprised of iron-57 (57Fe) is electroplated upon the membrane instead of directly onto the TES itself (with the absorber hence thermally connected to the TES via a gold thermal strap), some of the heat deposited into the absorber consequently escapes into the heat bath through the membrane before being detected by the TES. If the heat-loss depends upon the axion interaction position within the absorber, position dependence may degrade the energy resolution. Therefore, this study endeavored to evaluate the dependence of heat-loss and pulse shape on axion incident position with the COMSOL Multiphysics software package (using a finite element method). In addition, heat-loss and pulse shape were likewise evaluated when the energy was deposited directly within the gold thermal strap.
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U2 - 10.1007/s10909-022-02902-w
DO - 10.1007/s10909-022-02902-w
M3 - Article
AN - SCOPUS:85141423875
SN - 0022-2291
VL - 209
SP - 518
EP - 524
JO - Journal of Low Temperature Physics
JF - Journal of Low Temperature Physics
IS - 3-4
ER -