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A new method for enhancing the production of the negatively charged helium dimer He2−

✍ Scribed by J. Søgaard; I. Hazell; N. Bjerre; T. Andersen

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
256 KB
Volume
241
Category
Article
ISSN
0009-2614

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✦ Synopsis

The production of the negatively charged helium dimer He 2 can be enhanced by nearly an order of magnitude by utilizing laser excited alkali metals as charge-exchange material for fast He~-ions. The enhancement can be attributed to both steps in the charge-exchange reactions converting He~" via He 2 (a3~ + ) to He 2 (4IIg).

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