2023 Fiscal Year Final Research Report
Development of the pyroelectric X-ray generator on the active X-ray spectrometer
| Project/Area Number |
21K17999
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 80040:Quantum beam science-related
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| Research Institution | National Institutes for Quantum Science and Technology |
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Principal Investigator |
Naito Masayuki 国立研究開発法人量子科学技術研究開発機構, 放射線医学研究所 計測・線量評価部, 研究員 (30778147)
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Keywords | 焦電結晶 / X線発生器 / 能動型X線分光計 / 焦電型X線発生器 |
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| Outline of Final Research Achievements |
The pyroelectric effect is a phenomena to yield spontaneous electric polarization depending on temperature change. Recently, it was found that schottky junction of titanium oxide crystal represents large pyroelectric coefficient. In this research, X-ray generation by the pyroelectric effect of the conjunction between niobium-doped BaSrTiO3 and Au (Au/Nb:SBTO) in a low pressure has been experimentally evaluated. Although The Au/Nb:SBTO was heated and cooled in a pressure of 1 Pa to detect X-rays by a Si detector, the X-ray generation by the pyroelectric polarization was not observed.
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| Free Research Field |
線量評価
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| Academic Significance and Societal Importance of the Research Achievements |
焦電効果による自発分極は高い電圧を簡便に得る手法として有用であり、その基礎原理の追求を目的としている。したがって、X線発生装置のみでなく高電圧を利用する広い分野への発展が考えられる。本研究ではその詳細までを明らかにするのに十分なデータは得られなかったが、その一端となる実験を取得することができた。将来的にその全容が明らかになれば、高電圧装置の小型・軽量化などに貢献することが予想される。
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