RESEARCH IN NUCLEAR PHYSICS. Progress Report No. 11

Technical Report · Thu Jun 15 00:00:00 EDT 1961

OSTI ID:4039852

Nuclear Reaction Studies. The design, operation, and calibration of a particle spectrograph are described. Measured total cross sections and interaction radii are given for the three highest-energy proton groups from ( alpha ,p) reactions with F/sup 1//sup 9/, Na/sup 2//sup 3/, Al/sup 2//sup 7/, and Si/sup 2//sup 8/. Preliminary data on the largeangle scattering of 18.6-Mev alpha particles by C/sup 1//sup 2/ are re ported. Angular Correlatiun ard Mossbauer Effect Studies. The results of experiments done on the beta - gamma correlations of beta transitions are reported for K/sup 4//sup 2/, Sb/sup 1//sup 2//sup 2/, Sb/sup 1//sup 2//sup 4/, and Au/sup 1//sup 9//sup 8/. The beta - gamma directional correlations were measured in the decays of Ga/sup 7//sup 2/, La/sup 1//sup 4//sup 0/, and Eu/sup 1//sup 5//sup 2/. Tables are prese nted for analysis of beta - gamma angular correlation data for first-forbidden beta transitions. The transverse polarization of conversion electrons following the beta decay of Au/sup 1//sup 9//sup 6/ was measured. A theoretical discussion of the influence of a combined magnetic dipole and electric quadrupole interaction on angular correlations is presented. Nuclear Spectroscopy. An activity with a half life of 1.03 plus or minus 0.06 sec was found in the products of neutron bombardment of Mg and is probably Na/sup 2//sup 6/ produced by the Mg/sup 2//sup 6/(n,p) reaction. Studies of radiations from Si irradiated with 8-Mev He/sup 3/ ions revealed an activity with a half life of 1.35 plus or minus 0.10 sec, which is assigned to the decay of S/sup 3//sup 0/ produced by the reaction Si/sup 2//sup 8/(He/sup 3/,n). An activity with a half life of 3.27 plus or minus 0.20 sec found in neutron bombardment of Si is assigned to A1/sup 3//sup 0/. Work on the positron decay of Y/sup 8//sup 8/ is reported. Experiments on the decay of In/sup 1//sup 1//sup 0//sup m/ Ag/sup 1//sup 0//sup 6/ and Rh/sup 1//sup 0//sup 6/ are summarized. The preparation of Au-Si surface barrier charged- particle detectors is described. (D.L.C.)

• Research Organization: Purdue Research Foundation, Lafayette, Ind.
• NSA Number: NSA-15-022929
• OSTI ID: 4039852
• Report Number(s): TID-12604
• Country of Publication: United States
• Language: English

Related Subjects

ALPHA BEAMS
ALUMINUM 27
ANGULAR CORRELATION
ANGULAR DISTRIBUTION
ANTIMONY 122
ANTIMONY 124
BETA DECAY
BETA PARTICLES
CARBON 12
CROSS SECTIONS
DIPOLES
ELECTRIC MOMENTS
ELEMENTARY PARTICLES
ENERGY RANGE
EUROPIUM 152
FLUORINE 19
GALLIUM 72
GAMMA RADIATION
GOLD 198
INTERNAL CONVERSION
LANTHANUM 140
MAGNETIC MOMENTS
MEASURED VALUES
MOESSBAUER EFFECT
NUCLEAR REACTIONS
NUCLEAR THEORY
OPERATION
PHYSICS
PLANNING
POLARIZATION
POTASSIUM 42
PROTONS
QUADRUPOLES
SCATTERING
SILICON 28
SODIUM 23
SPECTROMETERS
TABLES
TARGETS
TRANSIENTS