PHYSICS DIVISION PROGRESS REPORT FOR JANUARY 1, TO MARCH 31, 1959

Technical Report · Sat Oct 31 04:00:00 EST 1959

OSTI ID:4252583

The installation of the Tandem Accelerator was completed, and it has operated well. Proton beams of about 1 ma were obtained at energies from 2 to 10 Mev. A series of neutron threshold measurements were made as calibration points. Studies were made of gamma yields from proton capture in Al/sup 27/ and B/sup 11/ at 3 to 8 Mev. Inelastic neutron scattering at 14 Mev was studied using targets of Na, Mg, Al, Si, P, S, k and Ca. A study was made of the frequency-wavelength relationship for elastic waves traveling in single crystals of and sodium iodide Calculations were made to determine unsafe configurations for the '' bird cage'' storage vessel. Calculations on the oscillator model of the nucleus were continued with the introduction of spin-orbit coupling. The general Wigner- Eisenbud resonance theory was used to develop a method of analysis for the measured neutron cross sections of fissionable nuclei. (For preceding period see PR-P-40.) (D.E.B.) l6315 The Whipple Theory of the viscosity plate thrust bearing is based on the assumption that the radius of the is large compared with the width of the pumping portion. This condition is not fulfilled in practice, and it was thought that this might be the cause of the observed discrepancy between theory and experiment. A modified theory which takes full account of the circular nature of the plates is presented. It is shown that such a modification will not reduce the discrepancy between theory and experiment. (auth)

• Research Organization: Atomic Energy of Canada Ltd. Chalk River, Ont.
• NSA Number: NSA-13-016314
• OSTI ID: 4252583
• Report Number(s): PR-P-41; AECL-830
• Country of Publication: Canada
• Language: English

Related Subjects

ACCELERATORS-- ENERGY-- MEASURED VALUES-- MEV RANGE-- NEUTRONS-- OPERATION-- PROTON BEAMS-- TANDEM ACCELERATORS
ALUMINUM 27-- BORON 11- - CAPTURE-- EFFICIENCY-- ENERGY-- GAMMA RADIATION-- MEV RANGE-- PROTONS
ALUMINUM- - CALCIUM-- ENERGY-- MAGNESIUM-- MEV RANGE-- NEUTRONS-- PHOSPHORUS-- POTASSIUM-- SCATTERING-- SILICON-- SODIUM-- SULFUR-- TARGETS
CONFIGURATION-- NUMERICALS-- VESSELS
COUPLING-- INTERACTIONS-- NUCLEAR MODELS-- NUCLEI-- ORBITS-- OSCILLATIONS
CROSS SECTIONS-- DISPERSION THEORY-- FISSION-- MEASURED VALUES-- NEUTRONS-- NUCLEI-- RESONANCE-- SPIN-- WIGNER-EISENBUD THEORY
ELASTICITY-- FREQUENCY-- LEAD-- MONOCRYSTALS-- MOTION-- OS
PHYSICS AND MATHEMATICS