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Efficient, highly selective laser isotope separation of carbon-13

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TABLE 1 Spectroscopic data for selected CH-stretch overtone bands of 13 CF 3 H
Figure 4a and b shows the isotopic selectivity and rela- rela-tive IRMPD yield (i.e., fraction of the pre-excited molecules that have been dissociated) as a function of CF 3 H pressure for the OP-IRMPD process with pre-excitation to the 3 1 and 2 2 bands
FIGURE 5 Oscillograms of the regular (a) and the “doubled” (b) dissocia- dissocia-tion CO 2 laser pulses obtained with 2 ns resolution

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