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A theoretical consideration of chemi-ionisation of excited atoms in crossed atomic beams is made. A decrease in the effective temperature of atoms in the beam compared with the temperature of its effusive source is predicted. A critical analysis of the the rate constant measurements for associative ionisation of excited sodium (Na(3P)+Na(3P) to Na2++e) using gas cell, single atomic beam and crossed atomic beam experiments is performed. Proper considerations of the resonance radiation imprisonment in the experimental conditions are proposed.
Original language | English |
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Article number | 018 |
Pages (from-to) | 2497-2513 |
Number of pages | 17 |
Journal | Journal of Physics B: Atomic and Molecular Physics |
Volume | 20 |
Issue number | 11 |
DOIs | |
State | Published - 1 Dec 1987 |
ID: 36439964