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Title: Atomic mass measurements and nuclear spectroscopy at TRISTAN and nuclidic mass measurements at LAMPF. Progress report, February 1, 1983-September 30, 1984

Technical Report ·
OSTI ID:6443159

The Clark University research program is concerned with the measurement of atomic masses and understanding the nuclear structures of isotopes far from the line of ..beta.. stability. This work is accomplished, primarily, by use of the TRISTAN on-line mass separator located at the High Flux Beam Reactor, Brookhaven National Laboratory, where investigations of short-lived fission products have been actively pursued for the past four years. In 1985 mass measurements of light isotopes produced by fragmentation reactions on heavy targets will begin using the TOFI (Time-of-Flight Isochronous) Spectrometer at the LAMPF accelerator, Los Alamos National Laboratory. Together, the two facilities are capable of providing complementary information, potentially of great value in understanding the sum total effect of all nuclear interactions in a given nucleus, which gives rise to the property known as the mass. The thrust of the spectroscopic studies at TRISTAN has been to develop a data base for neutron-rich, far-from-stability nuclides in order to provide a new testing ground for nuclear models. In particular, we have been active in pursuing microscopic and phenomenological understanding of nuclear structure in regions of shape transition near shell and subshell closures. Recent efforts have been concentrated on investigating the interplay of vibrational and rotation-like intruder state degrees of freedom as manifested, for example, in even Cd isotopes near the Z=50 shell. Such studies provide crucial tests of nuclear wave functions and model Hamiltonians.

Research Organization:
Clark Univ., Worcester, MA (USA)
DOE Contract Number:
AC02-79ER10493
OSTI ID:
6443159
Report Number(s):
DOE/ER/10493-15; ON: DE85000349
Resource Relation:
Other Information: Portions are illegible in microfiche products
Country of Publication:
United States
Language:
English