High-resolution hadronic-atom x-ray spectroscopy with cryogenic detectors
| Project/Area Number |
26707014
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Institute of Physical and Chemical Research |
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Principal Investigator |
Okada Shinji 国立研究開発法人理化学研究所, 東原子分子物理研究室, 協力研究員 (70391901)
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥24,570,000 (Direct Cost: ¥18,900,000、Indirect Cost: ¥5,670,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥9,620,000 (Direct Cost: ¥7,400,000、Indirect Cost: ¥2,220,000)
Fiscal Year 2014: ¥13,390,000 (Direct Cost: ¥10,300,000、Indirect Cost: ¥3,090,000)
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| Keywords | 超伝導検出器 / マイクロカロリメータ / X線分光 / エキゾチック原子 / ハドロニック原子 / K中間子 / J-PARC / 国際情報交換 / 実験核物理 |
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| Outline of Final Research Achievements |
This project aims to pioneer the next-generation high-resolution x-ray spectroscopy of hadronic atoms. We use a novel cryogenic x-ray spectrometer: an array of superconducting transition-edge-sensor (TES) microcalorimeters, offering unprecedented energy resolution of less than 5 eV (FWHM) at 6 keV. The 240 pixel spectrometer array will have a large collecting area of about 20 mm^2 thanks to recent technological advances in multiplexed readout. This will open a new door to investigate kaon-nucleus strong interactions.
In 2014, a pathfinding experiment was conducted by measuring pionic-atom x rays at the PSI, and successfully demonstrated the feasibility of TES-based exotic-atom x-ray spectroscopy in a hadron-beam environment. In 2016, a commissioning experiment at the actual kaon beamline of J-PARC was performed. Based on these results, the proposed experiment (J-PARC E62) for measuring kaonic atom x-rays with TES was accepted, and the beam time was finally assigned in June 2018.
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Report
(5 results)
Research Products
(49 results)
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[Journal Article] High-Resolution Kaonic-Atom X-ray Spectroscopy with Transition-Edge-Sensor Microcalorimeters2014
Author(s)
S. Okada, D. A. Bennett, W. B. Doriese, J. W. Fowler, K. D. Irwin, S. Ishimoto, M. Sato, D. R. Schmidt, D. S. Swetz, H. Tatsuno, J. N. Ullom, S. Yamada
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Journal Title
Journal of Low Temperature Physics
Volume: 176
Issue: 5-6
Pages: 1015-1021
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Presentation] Light Kaonic Atoms2016
Author(s)
H. Tatsuno et al.
Organizer
14th International Workshop on Meson Production, Properties and Interaction (MESON2016)
Place of Presentation
Krakow, Poland
Related Report
Int'l Joint Research / Invited
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