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Response of a Superconducting Transition-Edge Sensor Microcalorimeter with a Mushroom-shaped Absorber to L X-rays Emitted by Transuranium Elements
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A four-pixel-array superconducting transition-edge sensor (TES) microcalorimeter with a mushroom-shaped absorber was fabricated for the energy dispersive spectroscopy performed on a transmission electron microscope. The TES consists of a bilayer of Au/Ti with either a 50-nm or 120-nm thickness. The absorber of 5.0 μm thick is made from a Au layer and its stem is deposited in the center of the TES surface. A Ta2O5 insulating layer of 100-nm thickness is inserted between the overhang region of the absorber and the TES surface. A selected pixel of the TES microcalorimeter was operated for the detection of Np L X-rays emitted from an 241Am source. A response of the TES microcalorimeter to L X-rays was obtained by analyzing detection signal pulses with using the optimal filter method. An energy resolution was obtained to be 33 eV of the full width at half maximum value at 17.751 keV of Np Lβ 1 considering its natural width of 13.4 eV. Response to L X-rays emitted from a mixture source of 238Pu, 239Pu and 241Am was obtained by operating the selected pixel of the TES microcalorimeter. Major L X-ray peaks of progeny elements of α decay of Pu and Am isotopes were clearly identified in the obtained energy spectrum. The experimental results demonstrated the separation of 241Am and plutonium isotopes by L X-ray spectroscopy.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E98-C No.3 pp.178-185
- Publication Date
- 2015/03/01
- Publicized
- Online ISSN
- 1745-1353
- DOI
- 10.1587/transele.E98.C.178
- Type of Manuscript
- Special Section INVITED PAPER (Special Section on Leading-Edge Applications and Fundamentals of Superconducting Sensors and Detectors)
- Category
Authors
Keisuke MAEHATA
Kyushu University
Makoto MAEDA
Kyushu University
Naoko IYOMOTO
Kyushu University
Kenji ISHIBASHI
Kyushu University
Keisuke NAKAMURA
Sector of Decommissioning and Radioactive Wastes Management, Japan Atomic Energy Agency
Katsunori AOKI
Sector of Decommissioning and Radioactive Wastes Management, Japan Atomic Energy Agency
Koji TAKASAKI
Oarai Research and Development Center, Japan Atomic Energy Agency
Kazuhisa MITSUDA
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency
Keiichi TANAKA
Hitachi High-Tech Science Corp.
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Keisuke MAEHATA, Makoto MAEDA, Naoko IYOMOTO, Kenji ISHIBASHI, Keisuke NAKAMURA, Katsunori AOKI, Koji TAKASAKI, Kazuhisa MITSUDA, Keiichi TANAKA, "Response of a Superconducting Transition-Edge Sensor Microcalorimeter with a Mushroom-shaped Absorber to L X-rays Emitted by Transuranium Elements" in IEICE TRANSACTIONS on Electronics,
vol. E98-C, no. 3, pp. 178-185, March 2015, doi: 10.1587/transele.E98.C.178.
Abstract: A four-pixel-array superconducting transition-edge sensor (TES) microcalorimeter with a mushroom-shaped absorber was fabricated for the energy dispersive spectroscopy performed on a transmission electron microscope. The TES consists of a bilayer of Au/Ti with either a 50-nm or 120-nm thickness. The absorber of 5.0 μm thick is made from a Au layer and its stem is deposited in the center of the TES surface. A Ta2O5 insulating layer of 100-nm thickness is inserted between the overhang region of the absorber and the TES surface. A selected pixel of the TES microcalorimeter was operated for the detection of Np L X-rays emitted from an 241Am source. A response of the TES microcalorimeter to L X-rays was obtained by analyzing detection signal pulses with using the optimal filter method. An energy resolution was obtained to be 33 eV of the full width at half maximum value at 17.751 keV of Np Lβ 1 considering its natural width of 13.4 eV. Response to L X-rays emitted from a mixture source of 238Pu, 239Pu and 241Am was obtained by operating the selected pixel of the TES microcalorimeter. Major L X-ray peaks of progeny elements of α decay of Pu and Am isotopes were clearly identified in the obtained energy spectrum. The experimental results demonstrated the separation of 241Am and plutonium isotopes by L X-ray spectroscopy.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E98.C.178/_p
Copy
@ARTICLE{e98-c_3_178,
author={Keisuke MAEHATA, Makoto MAEDA, Naoko IYOMOTO, Kenji ISHIBASHI, Keisuke NAKAMURA, Katsunori AOKI, Koji TAKASAKI, Kazuhisa MITSUDA, Keiichi TANAKA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Response of a Superconducting Transition-Edge Sensor Microcalorimeter with a Mushroom-shaped Absorber to L X-rays Emitted by Transuranium Elements},
year={2015},
volume={E98-C},
number={3},
pages={178-185},
abstract={A four-pixel-array superconducting transition-edge sensor (TES) microcalorimeter with a mushroom-shaped absorber was fabricated for the energy dispersive spectroscopy performed on a transmission electron microscope. The TES consists of a bilayer of Au/Ti with either a 50-nm or 120-nm thickness. The absorber of 5.0 μm thick is made from a Au layer and its stem is deposited in the center of the TES surface. A Ta2O5 insulating layer of 100-nm thickness is inserted between the overhang region of the absorber and the TES surface. A selected pixel of the TES microcalorimeter was operated for the detection of Np L X-rays emitted from an 241Am source. A response of the TES microcalorimeter to L X-rays was obtained by analyzing detection signal pulses with using the optimal filter method. An energy resolution was obtained to be 33 eV of the full width at half maximum value at 17.751 keV of Np Lβ 1 considering its natural width of 13.4 eV. Response to L X-rays emitted from a mixture source of 238Pu, 239Pu and 241Am was obtained by operating the selected pixel of the TES microcalorimeter. Major L X-ray peaks of progeny elements of α decay of Pu and Am isotopes were clearly identified in the obtained energy spectrum. The experimental results demonstrated the separation of 241Am and plutonium isotopes by L X-ray spectroscopy.},
keywords={},
doi={10.1587/transele.E98.C.178},
ISSN={1745-1353},
month={March},}
Copy
TY - JOUR
TI - Response of a Superconducting Transition-Edge Sensor Microcalorimeter with a Mushroom-shaped Absorber to L X-rays Emitted by Transuranium Elements
T2 - IEICE TRANSACTIONS on Electronics
SP - 178
EP - 185
AU - Keisuke MAEHATA
AU - Makoto MAEDA
AU - Naoko IYOMOTO
AU - Kenji ISHIBASHI
AU - Keisuke NAKAMURA
AU - Katsunori AOKI
AU - Koji TAKASAKI
AU - Kazuhisa MITSUDA
AU - Keiichi TANAKA
PY - 2015
DO - 10.1587/transele.E98.C.178
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E98-C
IS - 3
JA - IEICE TRANSACTIONS on Electronics
Y1 - March 2015
AB - A four-pixel-array superconducting transition-edge sensor (TES) microcalorimeter with a mushroom-shaped absorber was fabricated for the energy dispersive spectroscopy performed on a transmission electron microscope. The TES consists of a bilayer of Au/Ti with either a 50-nm or 120-nm thickness. The absorber of 5.0 μm thick is made from a Au layer and its stem is deposited in the center of the TES surface. A Ta2O5 insulating layer of 100-nm thickness is inserted between the overhang region of the absorber and the TES surface. A selected pixel of the TES microcalorimeter was operated for the detection of Np L X-rays emitted from an 241Am source. A response of the TES microcalorimeter to L X-rays was obtained by analyzing detection signal pulses with using the optimal filter method. An energy resolution was obtained to be 33 eV of the full width at half maximum value at 17.751 keV of Np Lβ 1 considering its natural width of 13.4 eV. Response to L X-rays emitted from a mixture source of 238Pu, 239Pu and 241Am was obtained by operating the selected pixel of the TES microcalorimeter. Major L X-ray peaks of progeny elements of α decay of Pu and Am isotopes were clearly identified in the obtained energy spectrum. The experimental results demonstrated the separation of 241Am and plutonium isotopes by L X-ray spectroscopy.
ER -
English
