Thumbnail
Access Restriction
Open

Author Bouchard, G. H. (Jr.) ♦ Fairhall, A. W.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ ALPHA PARTICLES- - ALUMINUM- ANGULAR DISTRIBUTION- BEAMS- BERYLLIUM 7- CROSS SECTIONS- ENERGY RANGE- INTERACTIONS- NUCLEAR REACTIONS- PRODUCTION- TARGETS ♦ ALPHA PARTICLES- - ANGULAR DISTRIBUTION- BEAMS- BERYLLIUM 7- CROSS SECTIONS- ENERGY RANGE- INTERACTIONS- NUCLEAR REACTIONS- OXYGEN- PRODUCTION- TARGETS ♦ ALPHA PARTICLES- ALUMINUM 27- BEAMS- BERYLLIUM 7- CROSS SECTIONS- ENERGY RANGE- NUCLEAR REACTIONS- PRODUCTION- SODIUM 24- TARGETS ♦ ALPHA PARTICLES- BEAMS- BERYLLIUM 7- COPPER- CROSS SECTIONS- ENERGY RANGE- NUCLEAR REACTIONS- PRODUCTION- TARGETS ♦ ALPHA PARTICLES- BEAMS- BERYLLIUM 7- CROSS SECTIONS- - ENE
Abstract The production of Be/sup 7/ in targets of oxygen aluminum and copper bombarded with 30- to 42-Mev He ions was studied using radiochemical techniques. At 40-Mev He-ion bombarding energy the formation cross sections are 1.4 mb, 0.22 mb, and 0.018 mb, respectively. For aluminum and oxygen targets the Be/sup 7/ fragments are emitted sharply forward, implying-a direct-interaction mechanism. Estimations of the energies of the Be/sup 7/ fragments, along with the observation that for Al/sup 27/ target the yield of Na/sup 24/ is equal to the yield of Be/sup 7/, suggests that in this particular case interaction involves the pickup of a He/sup 3/ fragment from the nucleus by the impinging He/sup 4/ ion with the deposition of less than 7 Mev of excitation energy in the Na/sup 24/ residual nucleus. (auth)
ISSN 0031899X
Educational Use Research
Learning Resource Type Article
Publisher Date 1959-10-01
Publisher Department Univ. of Washington, Seattle
Journal Physical Review
Volume Number 116
Organization Univ. of Washington, Seattle


Open content in new tab

   Open content in new tab