Differential Excitation Cross Sections of Atomic Hydrogen byElectron Impact
Differential Excitation Cross Sections of Atomic Hydrogen byElectron Impact
批准号:
9114747
负责人:
Tong-Wha Shyn
金额:
$15.19万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1991
资助国家:
美国
项目状态:
已结题
起止时间:
1991-06-01 至 1994-05-31
中文摘要
用调制交叉束方法测量了氢原子从电子碰撞阈值能量到300 eV激发到低激发态原子能级n-2、3和4的截面。其目的是提供基本散射计算的测试,并解决理论和实验之间存在的差异。为此,测量是在绝对基础上校准的,角度相关性是测量的,这种测量的唯一类型是美国。
英文摘要
A modulated crossed beam method is used to measure cross sections for electron impact excitation of atomic hydrogen to the lower excited atomic levels, n - 2, 3 and 4 from threshold electron impact energy up to 300eV. The objective is to provide a test of basic scattering calculations and to resolve existing discrepancies between theory and experiment. To this end, the measurements are calibrated on an absolute basis, and the angular dependencies are measured, the only measurements of this kind is the United States.
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Absolute Differential Excitation Cross Sections of Molecular Oxygen by Electron Impact
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批准号:9528030
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项目类别:Continuing Grant
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资助金额:$32.0万
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财政年份:1996
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负责人:Tong-Wha Shyn
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依托单位:
Differential Excitation Cross Section Measurements of Ozone by Electron Impact: A Search for Ozone Excited Electronic States
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批准号:9415678
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项目类别:Continuing Grant
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资助金额:$10.69万
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财政年份:1995
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负责人:Tong-Wha Shyn
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依托单位:
Studies of Absolute Differential Excitation Cross Section of Molecular Oyxgen by Electron Impact
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批准号:9205041
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项目类别:Continuing Grant
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资助金额:$28.5万
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财政年份:1992
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负责人:Tong-Wha Shyn
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依托单位:
Differential Excitation Cross Section Measurements of O3 by Electron Impact: A Search for Ozone Excited Electronic States
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批准号:9020626
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项目类别:Standard Grant
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资助金额:$10.0万
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财政年份:1991
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负责人:Tong-Wha Shyn
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依托单位:
Differential Excitation Cross Sections of Atomic Hydrogen by Electron Impact
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批准号:9010886
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项目类别:Standard Grant
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资助金额:$6.74万
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财政年份:1990
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负责人:Tong-Wha Shyn
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依托单位:
Studies of Absolute Differential Excitation Cross Sections of Molecular Oxygen by Electron Impact
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批准号:8913022
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项目类别:Continuing Grant
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资助金额:$18.49万
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财政年份:1989
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负责人:Tong-Wha Shyn
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依托单位:
Doubly Differential Cross Sections of Secondary Electrons Ejected from Atomic Hydrogen by Electron Impact (Physics)
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批准号:8700430
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项目类别:Continuing Grant
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资助金额:$12.27万
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财政年份:1987
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负责人:Tong-Wha Shyn
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依托单位:
Absolute Differential Excitation Cross Section Measurements of Atomic Nitrogen by Electron Impact
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批准号:8500812
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项目类别:Standard Grant
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资助金额:$18.6万
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财政年份:1985
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负责人:Tong-Wha Shyn
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依托单位:
Laboratory Measurements of Absolute Electron Impact Differential Cross Sections of Atomic Oxygen (Aeronomy)
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批准号:8201427
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项目类别:Continuing Grant
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资助金额:$20.87万
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财政年份:1982
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负责人:Tong-Wha Shyn
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依托单位:
Measurements of Electron Impact Scattering Cross Sections OfAtmospheric Gases
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批准号:8105022
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项目类别:Standard Grant
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资助金额:$2.27万
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财政年份:1981
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负责人:Tong-Wha Shyn
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依托单位:
Measurements of Differential Cross Section of Secondary Electrons Ejected From Atmospheric Gases By Electron Impact
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批准号:7901618
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项目类别:Continuing Grant
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资助金额:$8.7万
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财政年份:1979
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负责人:Tong-Wha Shyn
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依托单位:
Measurements of Differential Cross Section of Secondary Electrons Ejected From Atmospheric Gases By Electron Impact
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批准号:7727215
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项目类别:Standard Grant
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资助金额:$4.67万
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财政年份:1978
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负责人:Tong-Wha Shyn
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依托单位:
Measurements of Differential Cross Section of Secondary Electrons Ejected From Atmospheric Gases By Electron Impact
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批准号:7617027
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项目类别:Standard Grant
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资助金额:$4.5万
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财政年份:1976
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负责人:Tong-Wha Shyn
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依托单位:
海外基金