PHYSICS DIVISION ANNUAL PROGRESS REPORT FOR PERIOD ENDING FEBRUARY 10, 1961

Results are discussed for investigations of: elastic scattering of bound nuclei; center-of-mass energy in Overhauser's self-consistent field with giant density fluctuations; the distorted-wave theory of direct nuclear reactions; an excitation method for an optical maser; energy spectra for BETA decay of He/sup 6/; electron shake-off following He/sup 6/ decay; neutrons from He/sup 3/ bombardment of Be/sup 9/, Ci/sup 1//sup 3/, and Li/sup 7/; total neutron cross section of Pb/sup 2//sup 0//sup 8/; neutron total cross sections for selenium isotopes at 4 to 50 kev; statistical parameters of nuclei from kev neutron total and capture cross sections; high-resolution total neutron cross sections of Am/ sup 2//sup 4//sup 1/ and Np/sup 2//sup 3//sup 7/; Breit-Wigner resonances; neutron radiative capture at 200 to 6000 ev; gamma spectra from 30-kev neutron capture; gamma - gamma angular correlations in Xe/sup 1//sup 3//sup 2/; Coulomb excitation of levels in Se/sup 7//sup 7/; Mossbauer method of HFS splitting of Au/ sup 1//sup 9//sup 7/ alloys wlth iron, cobalt, and nickel; magnetic ordering in rare-earth intermetallic compounds; frequency calibrations of prism spectrometers and spectral slit-width measurements; vapor-phase infrared absorption spectra of HfF/sub 4/, TiF/sub 4/, and ZrF/sub 4/; polarized deuteron sources; pulse characteristics of fast phototubes; properties of semiconductor detectors; and the response of silicon detectors to fission fragments. (B.O.G.