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Elastic scattering of $sup 40$Ar and $sup 84$Kr on $sup 209$Bi and $sup 238$U at 7.2 and 8.5 MeV/N

Journal Article · · Phys. Rev., C, v. 13, no. 1, pp. 133-146
OSTI ID:4094139
; ; ; ; ;
Cross sections for elastic scattering of $sup 40$Ar on targets of $sup 209$Bi and $sup 238$U were measured at energies of 286 and 340 MeV. Cross sections for the elastic scattering of $sup 84$Kr on $sup 209$Bi were measured at energies of 600 and 712 MeV. These experimental elastic scattering data were fitted with optical and Fresnel models. The total reaction cross section deduced from the Fresnel model by the one-quarter point technique agrees within a few percent with the result from the optical model. The Fresnel interaction radius and the optical model strong absorption radius are found to be approximately equal and qualitatively reproduced by the sum of the half-density electron scattering radii of the two heavy ions and a constant of 3.2+-0.3 fm. A method of estimating total reaction cross sections for heavy ions is presented. Some observations on the real and imaginary potentials of very heavy ions are presented. (AIP)
Research Organization:
Departments of Chemistry and Physics, University of Rochester, Rochester, New York 14627
NSA Number:
NSA-33-027709
OSTI ID:
4094139
Journal Information:
Phys. Rev., C, v. 13, no. 1, pp. 133-146, Journal Name: Phys. Rev., C, v. 13, no. 1, pp. 133-146; ISSN PRVCA
Country of Publication:
United States
Language:
English

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Related Subjects

*ARGON 40 REACTIONS-- ELASTIC SCATTERING
643205*
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
CROSS SECTIONS
FRESNEL COEFFICIENT
HEAVY ION REACTIONS-- TOTAL CROSS SECTIONS
INTERACTION RANGE
MEV RANGE 100-1000
N68951* --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
190 <= A <= 219--Nuclear Reactions & Scattering
N69151 --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
A >= 220--Nuclear Reactions & Scattering
N69230 --Physics (Nuclear)--Nuclear Theory--Nuclear Reactions & Scattering
NUCLEAR POTENTIAL
OPTICAL MODELS BISMUTH 209-- BISMUTH 209 TARGET-- KRYPTON 84 REACTIONS
URANIUM 238-- URANIUM 238 TARGET