Preparation of thin targets with the isotope separator Paris

Meunier, R.; Daban-Haurou, J.L.; Salome, M.; Nickel, F.

doi:10.1016/0029-554x(81)90882-x

Cited by 10 publications

(1 citation statement)

References 4 publications

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“…AGe detector is used to identify the product nuclei. Fourteen hexagonal NaI detectors in "sandwich mode" form the multiplicity filter, and two NaI detectors at 0 ~ and 90 ~ observe the quasi-continuum spectra producing t s s, ~ S4Er" Two 74Ge targets of 750btg/cm 2 thickness, provided by the mass separator PARIS at CSNSM, Orsay [25], were alternately used. One was self-supporting and the other deposited on a 0.2 mm thick Au backing.…”

Section: The Experimental Set-upmentioning

confidence: 99%

Decay properties of very-high-spin states in transitional Er nuclei aroundA=154

Bogaert

Aguer

Bastin

et al. 1986

Z. Physik A - Atomic Nuclei

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The 7 ray continuum structures of the transitional Er isotopes with A ~ 154 are studied using the reaction 74Ge(8r xn) lS8-XEr at El, b = 340 MeV. The measurements include energy spectra, total energies, multiplicities, angular distributions and lifetimes using the DSAM method. The analysis of data confirms the previously observed two-bump structure of the continuum radiation. A meticulous subtraction of discrete contributions proves the persistence of the low-energy bump even at high spins, i.e. I>40 h. The angular -distribution measurements assign predominant dipole structure to the bump at E~ =0.65 MeV, whereas the bump at E~ = 1.3 MeV is of almost pure quadrupole character at high spins. The lifetime measurements give evidence for a strong enhancement of the B(E2) values of the upper bump, B(E2)/Bsp>130. Spin-selection studies reveal, in the spin range I=30-50h an almost constant energy for the 1.3MeV bump, AE<60 keV.

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Section: The Experimental Set-upmentioning

confidence: 99%