Dissociative recombination study of Na+ (D2O) in a storage ring |
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Authors: | Zhaunerchyk Vitali Ehlerding Anneli Geppert Wolf D Hellberg Fredrik Thomas Richard D Larsson Mats Viggiano Albert A Arnold Susan T Osterdahl Fabian Hlavenka Peter |
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Institution: | Department of Physics, Albanova, Stockholm University, SE-106 91 Stockholm, Sweden. |
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Abstract: | The dissociative recombination of Na(+)(D(2)O) ion has been studied at the heavy-ion storage ring CRYRING (Manne Siegbahn Laboratory, Stockholm University). The cross section has been measured as a function of center-of-mass energy ranging from 1 meV to 0.1 eV and found to have an E(-1.37) dependence. The rate coefficient has been deduced to be (2.3+/-0.32)x10(-7)(T(e)/300)(-0.95+/-0.01) cm(3) s(-1) for T(e)=50-1000 K. The branching ratios have been measured at 0 eV. Of the four energetically accessible dissociation channels, three channels are found to occur although the channel that breaks the weak Na(+)-D(2)O bond is by far dominant. |
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