Back-angle $sup 3$He and $alpha$-particle elastic scattering from $sup 27$Al

Journal Article · Sun Feb 29 23:00:00 EST 1976 · Phys. Rev., C, v. 13, no. 3, pp. 937-943

OSTI ID:4012869

Fulmer, C B; Hensley, D C; Hafele, J C; Foster, C C; O'Fallon, N M; Eidson, W W; Gronemeyer, S A

Back-angle elastic scattering measurements were performed for $sup 3$He and $alpha$ particles on $sup 27$Al targets. Data were obtained at 11 energies between 14 and 31 MeV for $sup 3$He particles and at 15 energies between 13 and 40 MeV for $alpha$ particles. 180degree elastic cross sections for $alpha$ particles are a factor of approx.100 larger than those for $sup 3$He particles of the same energy. The $alpha$-particle angular distributions all peak at 180degree, whereas mimina at 180degree are observed in some of the $sup 3$He angular distributions. A number of optical-model analyses were performed on the data, and the results of the analyses show a pronounced energy dependence of the absorption term of the potential for $alpha$ particles but not for $sup 3$He particles. (AIP)

• Research Organization: Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830
• NSA Number: NSA-33-031733
• OSTI ID: 4012869
• Journal Information: Phys. Rev., C, v. 13, no. 3, pp. 937-943, Journal Name: Phys. Rev., C, v. 13, no. 3, pp. 937-943; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

*ALUMINIUM 27 TARGET-- HELIUM 3 REACTIONS
*ALUMINIUM 27-- HELIUM 3 REACTIONS
642205*
ANGULAR DISTRIBUTION
CROSS SECTIONS
N68451* --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
20 <= A <= 38--Nuclear Reactions & Scattering
OPTICAL MODELS