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STUDY OF SOME REACTIONS OF 14.8-MEV DEUTERONS WITH THE LITHIUM ISOTOPES

Journal Article · · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
;

Metallic targets of enriched Li/sup 6/ and Li/sup 7/ were bombarded with 14.8-Mev deuterons. The outgoing particies were magnetically analyzed and detected in nuclear emulsions or scintillation counters. Angular distributions for the following reactions were measured: Li/sup 6/(d,p)Li/sup 7/* 4.6 and 7.46 Mev, Li/sup 7/(d,p)Li/sup 8/* 2.28 Mev, Li/sup 7/(d,t)Li/sup 6/* 1.57 Mev Li/sup (d,d') Li/sup 6/* 2.19 Mev, Li/sup 6/(d, alpha )He/sup 4/ ground state, Li/sup 6/ (d, t)Liu/sup 5/ and Li/sup 6/(d,He/sup 3/)He/sup 5/. A search was made for other levels produced in these reactions and in the Li/sup 7/(d,d')Li/sup 7/* reaction. No new levels were observed; upper limits on the cross sections of unobserved levels are given. The results of the (d,p), (d,t), and (d,He/sup 3/) reactions were compared with stripping theory and with the predictions of the shell model. The agreement is satisfactory. The Li/sup 6/(d,t) and Li/sup 6/ (d,He/sup 3/) reactions produce a continuous spectrum of outgoing particles at each angle. The angular distribution of the tritons (or He/sup 3/ particles) is strongly peaked forward and can be fitted with Butler curves having l = 1, r/sub 0/ = 6f, The spectra at small angles show a peak corresponding to the Li/sup 5/ (or He/sup 5/ ground state, butat large angles the peak disappears and the spectra are constant. The shape of the spectra can be explained by the Butler formula if the energy dependence of the reduced width is taken into account. The form of this dependence was deduced from the results of the nucleon-helium elastic scattering experiments. (auth)

Research Organization:
Univ. of Pittsburgh
NSA Number:
NSA-14-012230
OSTI ID:
4171568
Journal Information:
Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 117; ISSN PHRVA
Country of Publication:
Country unknown/Code not available
Language:
English

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Related Subjects

ALPHA PARTICLES-- ANGULAR DISTRIBUTION-- CROSS SECTIONS-- DEUTERON BEAMS-- ENERGY-- ENERGY LEVELS-- ENERGY RANGE-- EQUATIONS-- HELIUM-- HELIUM 4-- INTERACTIONS-- LITHIUM ISOTOPES-- LITHIUM 6-- MAGNETIC FIELDS-- MEASURED VALUES-- METALS-- NUCLEAR EMULSIONS-- NUCLEAR MODELS-- NUCLEAR REACTIONS-- NUCLEAR THEORY-- NUCLEONS-- SCINTILLATION COUNTERS-- SPECTROMETERS-- STRIPPING-- TARGETS
ANGULAR DISTRIBUTION-- CROSS SECTIONS-- DEUTERON BEAMS- - ENERGY-- ENERGY LEVELS-- ENERGY RANGE-- EQUATIONS-- HELIUM-- INTERACTIONS-- LITHIUM ISOTOPES-- LITHIUM 6-- LITHIUM 7-- MAGNETIC FIELDS-- MEASURED VALUES-- METALS-- NUCLEAR EMULSIONS-- NUCLEAR MODELS-- NUCLEA
PHYSICS