The Be_ + p [right arrow] d + 2_ reaction

[摘要] The reaction Be9 + p -> d + 2 infinity has been studied at bombarding energies of 7 and 9 Mev, using the proton beam from the Rice University Tandem Van de Graaff accelerator. Several two-parameter spectra have been taken, recording the kinetic energies of two of the three particles in the final state. In addition, three-parameter data have been taken using a time-of-flight particle identification technique. This affords separation of the various kinematic loci, corresponding to d-oc, oc -d, and o* - oc coincidences. The technique has the added advantage of greatly reducing the background of random coincidences. Strong sequential decay is observed through the ground state and first excited states of Be8, and through the 2.184 Mev and 4.52 Mev states in Li6. There is evidence of interference effects similar to those noted by Bronson, et al in three alpha decay of C12.

[发布机构] Rice University