Coulomb excitation of a {sup 78}Rb radioactive beam.
In order to test the feasibility of Coulomb excitation of radioactive projectiles with low beam energies and intensities, they have produced a secondary radioactive beam of {sup 78}Rb and Coulomb re-excited it. The beam was produced in the fusion evaporation reaction {sup 24}Mg({sup 58}Ni,3pn){sup 78}Rb at a beam energy of 260 MeV, using the Argonne National Laboratory ATLAS accelerator. The residues of interest were separated from other reaction products and non-interacting beam using the Fragment Mass Analyzer (FMA). The beam leaving the FMA was {sup 78}Kr and {sup 78}Rb{sup gs,m1,m2}, which was refocused onto a {sup 58}Ni secondary target. They have extracted a spectrum of {gamma}-rays associated with re-excitation of A = 78 isobars. The re-excitation of stable {sup 78}Kr was observed, which serves as a reference. Gamma-rays associated with excitation of {sup 78}Rb{sup gs,m1,m2} were also seen. The measured yields indicate that all the {sup 78}Rb states are highly deformed.
- Research Organization:
- Argonne National Lab., IL (US)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 11111
- Report Number(s):
- ANL/PHY/CP-97688; TRN: US0104283
- Resource Relation:
- Conference: 2nd International Conference on Exotic Nuclei and Atomic Masses (ENAM98), Bellaire, MI (US), 06/23/1998--06/27/1998; Other Information: PBD: 18 Nov 1998
- Country of Publication:
- United States
- Language:
- English
Similar Records
Coulomb excitation of a {sup 78}Rb radioactive beam
Coulomb excitation of radioactive {sup 79}Pb