Fission fragment study of ^252Cf using the gas-filled separator, SASSYER
Abstract
Nuclei lying far from the valley of beta-stability have extreme neutron to proton (N/Z) ratios, and exhibit properties at variance with their more stable counterparts. The proton dripline lies closer to stability due to the repulsive Coulomb force between protons and is more easily accessible to experiment through heavy-ion reactions. Extensive studies of neutron-rich nuclei have been more difficult, as they are produced in fission and fragmentation studies at relatively low yields. Gamma-ray spectroscopy of ^252Cf fission fragments has been performed at the Wright Nuclear Structure Laboratory of Yale University. A 10-μCi source was placed at the center of YRAST-Ball, a high-efficiency clover Ge array. Recoiling fragments were subsequently separated through the gas-filled magnetic spectrometer SASSYER, and implanted into a Si detector at the exit. Coincidences between implanted fission fragments and prompt gamma-ray emissions were used to select mass regions of the fission products. Preliminary results of this experiment and future work will be discussed. This work was supported by the U.S. DOE under Contract Nos. DE-FG02-91ER-40609 and DE-FG02-88ER-40417.
- Publication:
-
APS April Meeting Abstracts
- Pub Date:
- April 2003
- Bibcode:
- 2003APS..APRT10012A