Development of 203 GHz band Gyro BWO and accurate measurement of energy difference between two states of positronium
| Project/Area Number |
21360167
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | University of Fukui |
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Principal Investigator |
IDEHARA Toshitaka 福井大学, 遠赤外領域開発研究センター, 特任教授 (80020197)
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| Co-Investigator(Kenkyū-buntansha) |
OGAWA Isamu 福井大学, 遠赤外領域開発研究センター, 教授 (90214014)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥18,590,000 (Direct Cost: ¥14,300,000、Indirect Cost: ¥4,290,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2010: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2009: ¥13,780,000 (Direct Cost: ¥10,600,000、Indirect Cost: ¥3,180,000)
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| Keywords | ジャイロBWO / ポジトロニウム / エネルギー準位差 / 超微細構造 / ジャイロトロン装置 / Gyro BWO / 高出力テラヘルツ光 / Gro-BWO |
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| Research Abstract |
Development of 203 GHz band frequency tunable Gyro BWO and its application to the first experiment on accurate measurement of energy difference between two states of positronium under collaboration with International Center for Elementary Particle Physics of University of Tokyo. In order to solve the problem on the difference between theoretical and experimental results of HFS measurement, we have developed a new gyrotron device(Gyrotron FU CW GI) with a Gaussian beam output and made a planning of the experimental set-up for this study.
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Report
(4 results)
Research Products
(64 results)
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[Journal Article] A spectrometer designed for 6. 7 and 14. 1 T DNP-enhanced solid-state MAS NMR using quasi-optical microwave transmission2012
Author(s)
Kevin J. Pike, Thomas F. Kemp, Hiroki Takahashi, Robert Day, Andrew P. Howes, Eugeny V. Kryukov, James F. MacDonald, Alana E. C. Collis, David R. Bolton, Richard J. Wylde, Marcella Orwick, Kosuke Kosuga, Andrew J. Clark, Toshitaka Idehara, Anthony Watts, Graham M. Smith, Mark E. Newton, Ray Dupree, Mark E. Smith
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Journal Title
Journal of Magnetic Resonance
Volume: 215
Pages: 1-9
Related Report
Peer Reviewed
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[Journal Article] Direct Measu rement of Positronium Hyper Fine Structure :<A New Horizon of Precision Spectroscopy Using Gyrotrons>2012
Author(s)
S. Asai, T. Yamazaki, A. Miyazaki, T. Suehara, T. Namba, T. Kobayashi, H. Saito, T. Idehara, I. Ogawa, S. Sabchevski
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Journal Title
J. Infrared, Milli Terahz Waves
Volume: 33
Pages: 766-776
Related Report
Peer Reviewed
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[Journal Article] Application of Continuously Frequency-Tunable 0.4 THz Gyrotron to Dynamic Nuclear Polarization for 600 MHz Solid-State NMR2012
Author(s)
Yoh Matsuki, Keisuke Ueda, Toshitaka Idehara, Ryosuke Ikeda, Kosuke Kosuga, Isamu Ogawa, Shinji Nakamura, Mitsuru Toda, Takahiro Anai, Toshimichi Fujiwara
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Journal Title
J.Infrared, Millimeter and Terahertz Waves
Volume: 33
Issue: 7
Pages: 745-755
DOI
Related Report
Peer Reviewed
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[Journal Article] New Experiment for the First Direct Measure ment of Positronium Hyperfine Splitting with sub-THz Light2011
Author(s)
Akira Miyazaki, Takayuki Yamazaki, Taikan Suehara, Toshio Namba, Shoji Asai, Hruo Saito, Hruo Saito, Toshitaka Idehara, Isamu Ogawa, Yuichi Urushizaki, Svilen Sabchevski
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Journal Title
Materials Science Forum
Volume: Vol.666
Pages: 133-137
Related Report
Peer Reviewed
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[Presentation] Svelin Sabchevski, Measurement of hyperfine split of positronium atoms using sub-THz gyrotron2010
Author(s)
S. Asai, T. Suehara, G. Akimoto, A. Miyazaki, T. Yamazaki, T. Namba, T. Kobayashi, H. Saito, T. Idehara, I. Ogawa, Y. Urushizaki
Organizer
The 3rd International Workshop on Far Infrared Technologies 2010
Place of Presentation
Fukui, Japan
Year and Date
2010-03-16
Related Report
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[Presentation] Measurement of hyperfine split of positronium atoms using sub-THz gyrotron2010
Author(s)
S.Asai, T.Suehara, G.Akimoto, A.Miyazaki, T.Yamazaki, T.Namba, T.Kobayashi, H.Saito, T.Idehara, I.Ogawa, Y.Urushizaki, Svelin Sabchevski
Organizer
The 3rd International Workshop on Far Infrared Technologies 2010
Place of Presentation
福井大学
Year and Date
2010-03-15
Related Report
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[Presentation] A DNP-enhanced Solid-State MAS NMR Spectrometer designed for operation at 6. 7 and 14. 1 T using quasi-optical microwave transmission2010
Author(s)
R. Dupree, K. J. Pike, T. H. Kemp, H. Takahashi, R. Day, A. P. Howes, E. V. Kryukov, J. F. MacDonald, A. E. C. Collis, D. V. Bolton, R. J. Wylde, M. Orwick, K. Kosuga, A. J. Klark, T. Idehara, A. Watts, G. M. Smith, M. E. Newton, M. E. Smith
Organizer
The 4th International Workshop on Far Infrared technologies
Place of Presentation
Fukui, Japan
Year and Date
2010-03-08
Related Report
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[Presentation] Application of Continuously Frequency-Tunable Sub-MMW Gyrotron to Dynamic Nuclear Polarization for NMR Spectroscopy at 14. 1 T and 30K2010
Author(s)
T. Fujiwara, Y. Matsui, K. Ueda, T. Idehara, R. Ikeda, K. Kosuga, I. Ogawa, S. Nakamura, M. Toda, T. Anai
Organizer
The 4th International Workshop on Far Infrared technologies
Place of Presentation
Fukui, Japan
Year and Date
2010-03-08
Related Report
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[Presentation] Direct Measurement of the Hyperfine Structure of the Ground State Positronium using High Power Sub-THz Radiation2010
Author(s)
T. Yamazaki, A. Miyazaki, T. Suehara, T. Namba, S. Asai, T. Kobayashi, H. Saito, T. Idehara, I. Ogawa, S. Sabchevski
Organizer
The 4th International Workshop on Far Infrared technologies
Place of Presentation
Fukui, Japan
Year and Date
2010-03-08
Related Report
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[Presentation] Development of gyrotrons with an internal mode convertor, Gyrotron FU CW G-series2010
Author(s)
Y. Tatematsu, Y. Yamaguchi, T. Idehara, T. Ozeki, T. Kawase, H. Kato, J. Aiba, R. Ikeda, T. Kanemaki, I. Ogawa, T. Saito
Organizer
The 4th International Workshop on Far Infrared technologies
Place of Presentation
Fukui, Japan
Year and Date
2010-03-08
Related Report
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