2023 Fiscal Year Annual Research Report
Operating principle of the superconducting neutron detector
| Project/Area Number |
21K14566
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| Research Institution | Osaka Metropolitan University |
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Principal Investigator |
VU THEDANG 大阪公立大学, 大学院工学研究科, 特任助教 (60826121)
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Keywords | Neutron detector / Superconducting sensor / Positional resolution / Detection efficiency / Fast readout circuit |
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| Outline of Annual Research Achievements |
In the final fiscal year of 2023, we evaluated all results obtained in this project in view of publication missions and exploring new ideas for future studies. (1) To optimize neutron detectors, the stabilization of temperature at 5K was important to obtain high-resolution images under pulsed neutron. In preceding studies, we found the spatial resolution was dependent on the detector position at the central areas or at the detector edges. The delay-line technique is influenced by the propagation-velocity fluctuations in evaluating positions of the images. The temperature stability of neutron detector realized within +/-70 uK reduced such efforts appreciably. (2) We built a new cryostat to mount the test sample at room temperature [1]. This made it possible to apply our method to various different samples. (3) The best resolution was 10um when the sample was placed at cryogenic sample while it was 24um when the sample was placed at room temperature. We can conduct the energy-resolving spectroscopy from 1meV to 500keV [2]. (4) We conducted neutron transmission imaging for various samples such as SmSn3 crystal, FeS2 crystal, Ammonite Fe2O3, and Wood metal alloy [3], and YbSn3 crystal [4].
[1] T. Ishida, T.D. Vu, at al., J. Low Temp. Phys. 214, 152 (2024).
[2] T.D. Vu, et al., Invited talks at 4th ICEBA2023 (Dec 8th 2023, HCM, Vietnam).
[3] T.D. Vu et al., J. Phys. Conf. Ser. 2545, 012019 (2023).
[4] H. Shishido, T.D. Vu, et al., J. Appl. Cryst. 56, 1108-1113 (2023).
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[Presentation] Application of energy-resolving neutron imaging to major-component analyses of materials using four-channel superconducting detector2023
Author(s)
The Dang Vu, Hiroaki Shishido, Kazuya Aizawa, Takayuki Oku, Kenichi Oikawa, Masahide Harada, Kenji M. Kojima, Shigeyuki Miyajima, Kazuhiko Soyama, Tomio Koyama, Mutsuo Hidaka, Soh Y. Suzuki, Manobu M. Tanaka, Masahiko Machida, Shuichi Kawamata, Takekazu Ishida
Organizer
The 4th International Conference on Engineering Physics, MEMS-Biosensors and Applications (4th ICEBA2023), Dec 8, 2023
Int'l Joint Research / Invited
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[Presentation] Neutron transmission imaging system with a superconducting kinetic inductance detector2023
Author(s)
The Dang Vu, Hiroaki Shishido, Kazuya Aizawa, Takayuki Oku, Kenichi Oikawa, Masahide Harada, Kenji M. Kojima, Shigeyuki Miyajima, Kazuhiko Soyama, Tomio Koyama, Mutsuo Hidaka, Soh Y. Suzuki, Manobu M. Tanaka, Masahiko Machida, Shuichi Kawamata, Takekazu Ishida
Organizer
the 36th International Symposium on Superconductivity (ISS2023)
Int'l Joint Research
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[Presentation] Neutron Transmission CB-KID Imager Using Samples Placed at Room Temperature2023
Author(s)
Ishida Takekazu、Vu The Dang、Shishido Hiroaki、Aizawa Kazuya、Oku Takayuki、Oikawa Kenichi、Harada Masahide、Kojima Kenji M.、Miyajima Shigeyuki、Koyama Tomio、Soyama Kazuhiko、Hidaka Mutsuo、Suzuki Soh Y.、Tanaka Manobu M.、Machida Masahiko、Kawamata Shuichi
Organizer
LTD20, the 20th International Conference on Low Temperature Detectors, Daejeon, South Korea, July 23-28, 2023.
Int'l Joint Research
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