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Paper Abstract and Keywords
Presentation 2022-01-21 15:30
Gamma-ray transition edge sensors with a thick-trilayer membrane; Thermal Property & Microwave Multiplexing
Takahiro Kikuchi, Go Fujii (AIST), Ryota Hayakawa (TMU), Ryan Smith (UTokyo), Fuminori Hirayama, Yasushi Sato, Satoshi Kohjiro, Masahiro Ukibe (AIST), Masashi Ohno (UTokyo), Akira Sato, Hirotake Yamamori (AIST) SCE2021-16
Abstract (in Japanese) (See Japanese page) 
(in English) Thick membranes of the gamma-ray transition-edge sensor (γ-TES) generally exhibit great mechanical strength and can support a bulk metal absorber typically for γ-TESs. However, for conventional silicon-nitride (SixNy) membranes, thermal conductance (G) is proportional to the thickness, indicating that thicker membranes provide larger thermal-fluctuation noise in TESs. We propose a thick-trilayer membrane consisting of the silicon oxide (SiO2), SixNy, and SiO2 layers. The SixNy layer accounts for 5.8 μm of the total 6.9 μm, and thus it is expected to be hard compared with conventional SixNy membranes with typical thickness below 1 μm. G of the trilayer membrane is characterized as a function of heat-transport distance (L) and the G-L relation follows that of the intermediate model between ballistic and diffusive transports. Resulting G of the thick-trilayer membrane is 1.1–1.7 nW/K which is not far from the one reported by conventional SixNy membranes. Gamma-ray spectroscopy around 93 keV is carried out based on series biased 5-pixels TES. The best full-width-half-maximum energy resolution among all pixels under characterization is 43.1±1.6 eV for 93-keV that is close to the median value of a state-of-the-art 236-pixels γ-TES in the literature. The measured low-frequency noise can be represented by theoretical phonon noise and its excess component with the same order as conventional ones. The thick-trilayer membrane is demonstrated to be able to work without any problems in a γ-TES regime.
Keyword (in Japanese) (See Japanese page) 
(in English) Transition-Edge Sensor / Gamma-ray Spectroscopy / Trilayer Membrane / Thermal Conductance / Microwave Resonator / Superconducting Quantum Interference Device / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 340, SCE2021-16, pp. 22-27, Jan. 2022.
Paper # SCE2021-16 
Date of Issue 2022-01-14 (SCE) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee SCE  
Conference Date 2022-01-21 - 2022-01-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SCE 
Conference Code 2022-01-SCE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Gamma-ray transition edge sensors with a thick-trilayer membrane; Thermal Property & Microwave Multiplexing 
Sub Title (in English)  
Keyword(1) Transition-Edge Sensor  
Keyword(2) Gamma-ray Spectroscopy  
Keyword(3) Trilayer Membrane  
Keyword(4) Thermal Conductance  
Keyword(5) Microwave Resonator  
Keyword(6) Superconducting Quantum Interference Device  
Keyword(7)  
Keyword(8)  
1st Author's Name Takahiro Kikuchi  
1st Author's Affiliation The National Institute of Advanced Industrial Science and Technology (AIST)
2nd Author's Name Go Fujii  
2nd Author's Affiliation The National Institute of Advanced Industrial Science and Technology (AIST)
3rd Author's Name Ryota Hayakawa  
3rd Author's Affiliation Tokyo Metropolitan University (TMU)
4th Author's Name Ryan Smith  
4th Author's Affiliation University of Tokyo (UTokyo)
5th Author's Name Fuminori Hirayama  
5th Author's Affiliation The National Institute of Advanced Industrial Science and Technology (AIST)
6th Author's Name Yasushi Sato  
6th Author's Affiliation The National Institute of Advanced Industrial Science and Technology (AIST)
7th Author's Name Satoshi Kohjiro  
7th Author's Affiliation The National Institute of Advanced Industrial Science and Technology (AIST)
8th Author's Name Masahiro Ukibe  
8th Author's Affiliation The National Institute of Advanced Industrial Science and Technology (AIST)
9th Author's Name Masashi Ohno  
9th Author's Affiliation University of Tokyo (UTokyo)
10th Author's Name Akira Sato  
10th Author's Affiliation The National Institute of Advanced Industrial Science and Technology (AIST)
11th Author's Name Hirotake Yamamori  
11th Author's Affiliation The National Institute of Advanced Industrial Science and Technology (AIST)
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Speaker
Date Time 2022-01-21 15:30:00 
Presentation Time 25 
Registration for SCE 
Paper # SCE2021-16 
Volume (vol) 121 
Number (no) no.340 
Page pp.22-27 
#Pages
Date of Issue 2022-01-14 (SCE) 


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