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Author Wegner, H. E. ♦ Hall, W. S.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ ANGULAR DISTRIBUTION- ANGULAR MOMENTUM- BERYLLIUM 9- BORON 10- COMPUTERS- DEUTERONS- DIFFRACTION- ENERGY- ENERGY LEVELS- ENERGY RANGE- HELIUM 3- INTERACTIONS- ION BEAMS- MEASURED VALUES- MOMENTUM- NUCLEAR REACTIONS- NUMERICALS- PERFORMANCE- Q-VALUE- STRIPPING ♦ ANGULAR DISTRIBUTION- ANGULAR MOMENTUM- BERYLLIUM 9- BORON 9- COMPUTERS- DIFFRACTION- - ENERGY- ENERGY LEVELS- ENERGY RANGE- HELIUM 3- INTERACTIONS- ION BEAMS- MEASURED VALUES- MOMENTUM- NUCLEAR REACTIONS- NUMERICALS- PERFORMANCE- Q- VALUE- STRIPPING- TRITONS ♦ ANGULAR DISTRIBUTION- ANGULAR MOMENTUM- CALCIUM 40- COMPUTERS- DEUTERON BEAMS- DIFFRAC
Abstract Angular distributions for the Be/sup 9/(He/sup 3/,d)B/sup 10/, Be/sup 9/ (He/s up 3/,t)B/sup 9/, 41/ reactions were measured at 25 Mev and also at 21 Mev for the carbon reaction. It was found that the angular distributions were strongly peaked forward, exhibited diffraction-like structure, and were asymmetric about 90 deg . The minimal positions of the angular distributions could be fitted with spherical Bessel functions of the appropriate order 1, the angular momentum transfer of the ingoing proton. This analysis resulted in the same interaction radius for various levels in each of these reactions. The best- fit interaction radius for each cass was 6.17, 5.91, 6.23, and 7.29 fermis, respectively. The Butler stripping theory was also fitted to the angular distributions; however, the average decrease of the angular distributions did not agree with the predicted decrease except in one case. The reactions exhibited the general characteristics of a direct process and could be predicted qualitatively with the simple form of direct interaction theories. The experimental equipment and the method of data analysis, using computer codes, is described. The ground-state Q values were measured for the Ca/sup 40/(He/sup 3/ ,d)Sc/sup 41/ Ca/sup 40/(d,n)Sc/sup 41/, and O/sup 16/(He/sup 3/,d)F/sup 17/ reactions. Q valu es for levels excited by the Ca/sup 40/(He/sup 3/,d)Sc/sup 41/ reaction were also measured. (auth)
ISSN 0031899X
Educational Use Research
Learning Resource Type Article
Publisher Date 1960-09-01
Publisher Department Los Alamos Scientific Lab., N. Mex.
Journal Physical Review
Volume Number 119
Organization Los Alamos Scientific Lab., N. Mex.


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