Fusion reactions using the new and improved focal plane of SASSYER

POSTER

Abstract

The Small Angle Separator System at Yale for Evaporation Residues (SASSYER) is a gas-filled magnetic separator used to transmit recoils from fusion-evaporation reactions to detectors at the focal plane. Improvements to the focal plane of SASSYER, including the addition of a Multi-Wire Avalanche Counter (MACY) as well as two 2400-pixel Double-sided Silicon Strip Detectors (DSSDs) with multiplexed electronics, were completed in the spring of 2008. Recoils can now be identified at the DSSDs by time-correlated alpha decays. The observed alpha decays are then correlated to prompt gamma events detected at the target position. The physics program at SASSYER is aimed at the study of the structure of neutron-deficient trans-lead and actinide nuclei. We present the results of the first experiments performed with the improved focal plane investigating $^{208}$Rn, $^{215}$Ac and $^{216}$Th.

Authors

  • A. Schmidt

    Yale University, WNSL Yale

  • A. Heinz

    Yale University, WNSL Yale

  • R. Winkler

    Yale University, WNSL Yale

  • J. Qian

    Yale University, WNSL Yale, WNSL, Yale University

  • G. Henning

    Yale University, ENS de Cachan, WNSL, ENS Cachan

  • R. Terry

    WNSL, Yale University, Yale University, WNSL Yale

  • Z. Berant

    Yale University, Nuclear Research Center Negev

  • M. Bunce

    WNSL, Yale University, Yale University, University of Surrey

  • R.J. Casperson

    Yale University, WNSL Yale, WNSL, Yale University

  • Rick Casten

    Yale University

  • V. Werner

    Yale University

  • E. Williams

    Yale University, WNSL Yale, WNSL, Yale University