| Project/Area Number |
09450309
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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 |
工業分析化学
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| Research Institution | KYOTO UNIVERSITY |
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Principal Investigator |
KAWAI Jun Kyoto University, Associate Professor, 工学研究科, 助教授 (60191996)
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| Co-Investigator(Kenkyū-buntansha) |
HAYASHI Kouichi Kyoto University, Research Associate, 工学研究科, 助手 (20283632)
TANABE Teruo Kyoto University, Research Associate, 工学研究科, 助手 (90026237)
ASAKI Zenjiro Kyoto University, Professor Emeritus, 顧問 (90026005)
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| Project Period (FY) |
1997 – 1999
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| Project Status |
Completed (Fiscal Year 1999)
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| Budget Amount *help |
¥11,800,000 (Direct Cost: ¥11,800,000)
Fiscal Year 1999: ¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 1998: ¥4,000,000 (Direct Cost: ¥4,000,000)
Fiscal Year 1997: ¥5,000,000 (Direct Cost: ¥5,000,000)
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| Keywords | Industrial Chemical Analysis / Novel Phenomena / X-Ray Analysis / Elemental Analysis |
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| Research Abstract |
X-Ray Emission due to electrification of insulator has been confirmed experimentally. The experimental conditions of X-ray emission due to the electric charge-up effect have been extensively studied with the change of pressure, vacuum, insulator material, atmospheric gas, applied voltage, electric current (DC or AC), and so on. It is found that the X-rays are only strongly emitted when the vacuum is a very narrow range on the 10ィイD1-2ィエD1 Torr. The X-ray emission is very unstable even though we changed the experimental conditions as far as we could control. The physical mechanism of this X-ray emission has been clarified; it is due to electron bombardment.
Using this phenomena, we have constructed an X-ray generating device using a 1.5 V battery and high voltage inverter. This device is quite small, and it has been observed that significant strength of X-rays were generated. The X-rays produced by this device was again very unstable, and we tried to find a condition by which the stable X-rays were generated. However, at the present stage of our work, we have not yet found such an experimental condition. We believe that the study of charge-up effect should be needed in the future.
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