Angular distributions in the barycentric coordinate system are presented for 24 charged-particle emissions from Li 7 Li 7 , Li 7 Li 6 , and Li 6 Li 6 interactions. These have been integrated, and the resulting total cross sections are tabulated. The total cross-section sums for a given projectile target combination are in reasonable agreement with theoretical estimates based on barrier penetration with nuclear radii given by r^A 113 with r 0 =1.5 F. The largest total cross sections measured are approximately 40X10" 28 cm 2 . The angular distributions from Li 6 Li 6 and Li 7 Li 7 are symmetrical about 90° by necessity, those from Li 7 Li 6 are, in general, asymmetric and difficult to reconcile with a simple compound-nucleus interpretation of the reactions. Most of the intense particle emissions are cases in which the residual nucleus can be formed by Li 7 capturing a deuteron or an alpha from Li 6 , or by Li 6 capturing an alpha from Li 7 . To produce high cross sections these captures must be with / = 0 between the reacting clusters. The evidence supports the hypothesis that a prominent but not necessarily exclusive reaction mechanism is for one of the Li-Li reacting partners to be distorted into "reacting clusters," consisting of an a cluster from either of the lithiums, and a deuteron cluster from Li 6 or a triton cluster from Li 7 .
Retarding potential and cylindrical electrostatic analyzer experiments have determined the equivalent voltage loss needed to electrostatically spray positively charged droplets of glycerol doped with sodium iodide. The cylindrical analyzer was also used as a mass spectrometer to identify in-flight evaporation processes. Evaporation from discrete multimolecular droplets containing one sodium ion in conjunction with low numbers of glycerol molecules was identified. The kinetics of this process made it possible to assign an energy loss of 400±200 V for the spraying process.
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