Photo-dissociation processes of greenhouse gases CHF3, CF4, and SF6
| Project/Area Number |
20510010
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | Hiroshima University |
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Principal Investigator |
YOSHIDA Hiroaki 広島大学, 大学院・理学研究科, 助教 (90249954)
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| Co-Investigator(Renkei-kenkyūsha) |
TAKAHASHI Osamu 広島大学, 大学院・理学研究科, 助教 (60253051)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2010: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
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| Keywords | 地球温暖化 / 温室効果ガス / 三フッ化メタン / 四フッ化メタン / 六フッ化硫黄 / 光分解 / クーロン爆発 / 多価イオン / トリフルオロメタン / パーフルオロメタン / 軟X線 / 2次元検出器 / 運動量イメージング法 |
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| Research Abstract |
Multiply-charged ions are often produced by inner-shell ionization, and they generally dissociate into some fragment ions by Coulomb explosion. We have investigated the dissociation processes of inner-shell ionized CHF3, CF4, and SF6 with a time-of-flight mass spectrometer and a two-dimensional position-sensitive detector. It is concluded that the successive dissociation including the auto-ionization of the fragment ion is dominant in the Coulomb explosion of CHF3+++, whereas the simultaneous dissociation is dominant in the Coulomb explosion of CF4+++.
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Report
(4 results)
Research Products
(21 results)
