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Electron-capture delayed fission properties of neutron-deficient einsteinium nuclei

Description: Electron-capture delayed fission (ECDF) properties of neutron-deficient einsteinium isotopes were investigated using a combination of chemical separations and on-line radiation detection methods. {sup 242}Es was produced via the {sup 233}U({sup 14}N,5n){sup 242}Es reaction at a beam energy of 87 MeV (on target) in the lab system, and was found to decay with a half-life of 11 {+-} 3 seconds. The ECDF of {sup 242}Es showed a highly asymmetric mass distribution with an average pre-neutron emission… more
Date: January 5, 2000
Creator: Shaughnessy, Dawn A.
Partner: UNT Libraries Government Documents Department
open access

Open cycle thermoacoustics

Description: A new type of thermodynamic device combining a thermodynamic cycle with the externally applied steady flow of an open thermodynamic process is discussed and experimentally demonstrated. The gas flowing through this device can be heated or cooled in a series of semi-open cyclic steps. The combination of open and cyclic flows makes possible the elimination of some or all of the heat exchangers (with their associated irreversibility). Heat is directly exchanged with the process fluid as it flows t… more
Date: January 1, 2000
Creator: Reid, Robert Stowers
Partner: UNT Libraries Government Documents Department
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