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Charge State Evolution of Uranium in Electron Beam Ion Trap |
| LIU Ya-Feng1,2;YAO Ke1,2;Roger Hutton2,3;ZOU Ya-Ming1,2 |
| 1EBIT Laboratory, Institute of Modern Physics, Fudan University, Shanghai 200433
2The Key Laboratory of Applied Ion Beam Physics of Ministry of Education, Fudan University, Shanghai 200433
3Department of Astronomy, Lund University, BOX 43, SE 221 00 Lund, Sweden |
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| Cite this article: |
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LIU Ya-Feng, YAO Ke, Roger Hutton et al 2005 Chin. Phys. Lett. 22 1891-1894 |
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Abstract We present a calculation scheme with significant modifications and improvements for determining the ionization balance and the ion temperature evolution in an electron beam ion trap (EBIT). The scheme is applied to uranium and nitrogen ions using a specific set of EBIT operating parameters. The calculation results are compared to the experimental data. Rates for the individual atomic processes in EBIT, especially single and multiple charge exchange processes, are discussed. The time evolution of the ion temperatures for uranium and its coolant nitrogen are also given.
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| Keywords:
34.10.+x
34.80.Dp
52.55.Dy
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Published: 01 August 2005
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| PACS: |
34.10.+x
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(General theories and models of atomic and molecular collisions and interactions (including statistical theories, transition state, stochastic and trajectory models, etc.))
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34.80.Dp
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(Atomic excitation and ionization)
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52.55.Dy
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(General theory and basic studies of plasma lifetime, particle and heat loss, energy balance, field structure, etc.)
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