The use of electron impact dissociation and the photon-photon cascade technique to measure the lifetime of the B2Σ+ state of CN |
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| Authors: | KA Mohamed GC King FH Read |
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| Institution: | Physics Department, Schuster Laboratory, University of Manchester, Manchester M13 9PL Great Britain |
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| Abstract: | The lifetime of the (B3Σ+υ= 0, 1 state of the CN radical has been measured by the photon-photon delayed coincidence technique, the CN radical being produced by electron impact dissociation of acetonitrile. This is the first lifetime measurement in a free radical by this method. The optical cascade in the band spectrum of CN used for the present measurement is H2Πr - B2Σ+ - X2Σ+. The lifetime of the (B2Σ+)υ=0, 1 state in CN has been found to be 61.1 ± 7.6 ns. |
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