High resolution zero degree electron spectroscopy of argon ions through carbon foil
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| Format: | Artículo científico |
| Language: | en |
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Sociedade Brasileira de Física
2006
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| _version_ | 1876467400269889536 |
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| author | M. Imai |
| author_facet | M. Imai |
| contents | High resolution zero degree electron spectroscopy of argon ions through carbon foil M. Imai K. Kawatsura K. Takahiro H. Shibata M. Sataka K. Komaki Física, Astronomía y Matemáticas Coster Charge state Rydberg state Density effect Kronig transition Electrons emitted from high Rydberg states formed by penetration of 2.0 MeV/u Ar6;13;14;15+ ions throughC-foil targets of various thicknesses (4.0 - 20 µg/cm2) have been measured with high resolution utilizingzero-degree electron spectroscopy. Intense series of Coster-Kronig peaks due to Ar14+ 1s22p(2P3=2;1=2)nl -1s22s(2S1=2)el0 and Ar13+ 1s22s2p(3P2;1;0)nl - 1s22s2 (1S0)el0 transitions, in which the principal quantumnumber, n, starts at 10 and increases with increasing peak energy, have been observed for every combination ofinitial charge state and foil thickness, and quite a few number of other peaks remain unassigned in the electronenergy region investigated. Intensities of each series of Coster-Kronig electron peaks follow the n¡3 law. Themean charge states after the foil penetration have been found to be the same within 10% uncertainty and the totalintensity of the Coster-Kronig transitions including Ar15+ 1s22p(2P) and Ar14+ 1s22s2p(3P) cores have alsobeen found to remain constant for all the collision systems investigated. The total Ar15+ 1s22p(2P) populationderived from n = 10 transition peaks is found to be almost the same as those of Ar14+ 1s22s2p(3P), which is incontrast to the ratio of Ar15+ to Ar14+ fractions measured downstream the foil. 2006 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46403612 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.2B Vol.36 |
| format | Artículo científico |
| id | redalyc_46403612 |
| institution | Redalyc |
| language | en |
| publishDate | 2006 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | High resolution zero degree electron spectroscopy of argon ions through carbon foil M. Imai Física, Astronomía y Matemáticas Coster Charge state Rydberg state Density effect Kronig transition High resolution zero degree electron spectroscopy of argon ions through carbon foil M. Imai K. Kawatsura K. Takahiro H. Shibata M. Sataka K. Komaki Física, Astronomía y Matemáticas Coster Charge state Rydberg state Density effect Kronig transition Electrons emitted from high Rydberg states formed by penetration of 2.0 MeV/u Ar6;13;14;15+ ions throughC-foil targets of various thicknesses (4.0 - 20 µg/cm2) have been measured with high resolution utilizingzero-degree electron spectroscopy. Intense series of Coster-Kronig peaks due to Ar14+ 1s22p(2P3=2;1=2)nl -1s22s(2S1=2)el0 and Ar13+ 1s22s2p(3P2;1;0)nl - 1s22s2 (1S0)el0 transitions, in which the principal quantumnumber, n, starts at 10 and increases with increasing peak energy, have been observed for every combination ofinitial charge state and foil thickness, and quite a few number of other peaks remain unassigned in the electronenergy region investigated. Intensities of each series of Coster-Kronig electron peaks follow the n¡3 law. Themean charge states after the foil penetration have been found to be the same within 10% uncertainty and the totalintensity of the Coster-Kronig transitions including Ar15+ 1s22p(2P) and Ar14+ 1s22s2p(3P) cores have alsobeen found to remain constant for all the collision systems investigated. The total Ar15+ 1s22p(2P) populationderived from n = 10 transition peaks is found to be almost the same as those of Ar14+ 1s22s2p(3P), which is incontrast to the ratio of Ar15+ to Ar14+ fractions measured downstream the foil. 2006 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46403612 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.2B Vol.36 |
| title | High resolution zero degree electron spectroscopy of argon ions through carbon foil |
| topic | Física, Astronomía y Matemáticas Coster Charge state Rydberg state Density effect Kronig transition |
| url | https://www.redalyc.org/articulo.oa?id=46403612 |