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18B (1987AJ02)(Not illustrated)
18B has not been observed in the bombardment of Ta by 44 MeV/A
Ar ions (1985DE60, 1985LA03, 1986PO13) or in the bombardment of Be by 12
MeV/A 56Fe ions (1984MU27). 18B has been predicted
to have a mass excess of 53.85 MeV. It would then be unstable with respect to
17B + n by 1.8 MeV: see (1978AJ03, 1985WA02). 18B is calculated to
have Jπ = 4- and to have excited states at
0.62, 0.86 and 1.59 MeV with Jπ = 1-,
2- and 2- (1985PO10). See also (1985AN1B) and (1983ANZQ; theor.).
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