Elastic proton scattering from $sup 3$He and $sup 4$He and the $sup 4$He(p,d)$sup 3$He reaction at 85 MeV
In 1973 progress report for the experimental study of the structure of nuclei and the interactions of intermediate energy particles.
ELASTIC SCATTERING OF 31-Mev He$sup 3$ IONS FROM SEVERAL ELEMENTS
Abstract
The absolute differential cross sections for elastic scattering of 31- Mev He/sup 3/ ions on Be, Al, Cu, Sn/sup (nat)/, Sn/sup 120/ and Bi were measured in the angular range of approximately 10 to 120 deg in the center-of-mass system. Thin selfsupporting foil targets were chosen to span the parameter A/sup 1/3/, where A is the target mass number. The first excited states of the isotopes of these elements had sufficient energy separation from the ground state to enable elastic scattering to be resolved from inelastic scattering. The detection system, consisting of CsI(Tl) scintillation crystals, was capable of 3% pulse- height resolution and 1 degree angular resolution. Characteristically, the light- element angular distributions show strong diffraction effects. The differential cross section divided by the Rutherford cross section decreases exponentially at large angles for the heavy elements, and the differential cross sections break away from Rutherford behavior at angles which increase almost linearly with increase of atomic number of the target nucleus. A comparison of the results for natural Sn, and Sn enriched to 85% in Sn/sup 120/, indicated that within the experimental uncertainties over the measured angular interval, there were no pronounced isotopic effects. The data are presented both inmore »
- Authors:
- Publication Date:
- Research Org.:
- California. Univ., Berkeley. Lawrence Radiation Lab.; California. Univ., Berkeley. Dept. of Chemistry; and California. Univ., Berkeley. Lawrence Radiation Lab.
- OSTI Identifier:
- 4759622
- Report Number(s):
- UCRL-9996
- NSA Number:
- NSA-17-007148
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Technical Report
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-63
- Country of Publication:
- United States
- Language:
- English
- Subject:
- PHYSICS; ALUMINUM; ANGULAR DISTRIBUTION; BERYLLIUM; BISMUTH; CESIUM IODIDES; COPPER; CROSS SECTIONS; CRYSTALS; DIFFRACTION; ENERGY LEVELS; EXCITATION; FOILS; HELIUM 3; IONS; MEASURED VALUES; SCATTERING; SCINTILLATION COUNTERS; TARGETS; TIN; TIN 120
Citation Formats
Igo, G., Vidal, J.G., and Markowitz, S.S.. ELASTIC SCATTERING OF 31-Mev He$sup 3$ IONS FROM SEVERAL ELEMENTS. United States: N. p., 1961.
Web.
Igo, G., Vidal, J.G., & Markowitz, S.S.. ELASTIC SCATTERING OF 31-Mev He$sup 3$ IONS FROM SEVERAL ELEMENTS. United States.
Igo, G., Vidal, J.G., and Markowitz, S.S.. Sun .
"ELASTIC SCATTERING OF 31-Mev He$sup 3$ IONS FROM SEVERAL ELEMENTS". United States.
doi:. https://www.osti.gov/servlets/purl/4759622.
@article{osti_4759622,
title = {ELASTIC SCATTERING OF 31-Mev He$sup 3$ IONS FROM SEVERAL ELEMENTS},
author = {Igo, G. and Vidal, J.G. and Markowitz, S.S.},
abstractNote = {The absolute differential cross sections for elastic scattering of 31- Mev He/sup 3/ ions on Be, Al, Cu, Sn/sup (nat)/, Sn/sup 120/ and Bi were measured in the angular range of approximately 10 to 120 deg in the center-of-mass system. Thin selfsupporting foil targets were chosen to span the parameter A/sup 1/3/, where A is the target mass number. The first excited states of the isotopes of these elements had sufficient energy separation from the ground state to enable elastic scattering to be resolved from inelastic scattering. The detection system, consisting of CsI(Tl) scintillation crystals, was capable of 3% pulse- height resolution and 1 degree angular resolution. Characteristically, the light- element angular distributions show strong diffraction effects. The differential cross section divided by the Rutherford cross section decreases exponentially at large angles for the heavy elements, and the differential cross sections break away from Rutherford behavior at angles which increase almost linearly with increase of atomic number of the target nucleus. A comparison of the results for natural Sn, and Sn enriched to 85% in Sn/sup 120/, indicated that within the experimental uncertainties over the measured angular interval, there were no pronounced isotopic effects. The data are presented both in tabular and graphical form to allow detailed comparison with theory. (auth)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Dec 31 00:00:00 EST 1961},
month = {Sun Dec 31 00:00:00 EST 1961}
}
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