Isotopic yields of intermediate-mass fragments emitted in [ital E]/[ital A]=50 MeV [sup 4]He+[sup 116,124]Sn reactions

Journal Article · Thu Apr 01 04:00:00 EST 1993 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.47.1553· OSTI ID:6649691

Brzychczyk, J; Bracken, D S; Kwiatkowski, K; Morley, K B; Renshaw, E; Viola, V E ^[1]

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1. Departments of Chemistry and Physics and Indiana University Cyclotron Facility, Indiana University, Bloomington, Indiana 47405 (United States)

Inclusive yields of isotopically resolved intermediate-mass fragments (IMF) with [ital Z]=3--6 have been measured for the reaction of [ital E]/[ital A]=50 MeV [sup 4]He with [sup 116]Sn and [sup 124]Sn targets. The isotopic yield patterns reflect the [ital N]/[ital Z] ratio of the target for both equilibriumlike and nonequilibrium components of the spectra. In addition, the IMF elemental cross sections for the [sup 124]Sn target decrease much more rapidly with [ital Z] than for [sup 116]Sn. This effect is presumably due to lower barriers for IMF emission from residues formed with the neutron-deficient [sup 116]Sn target and increased competition from pre-IMF neutron emission for the neutron-excess [sup 124]Sn target. The experimental cross sections are compared with statistical and accreting-source calculations.

• OSTI ID: 6649691
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 47:4; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663450* -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
663560 -- Nuclear Mass Ranges-- A=90-149-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA REACTIONS
CHARGE STATES
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DISTRIBUTION FUNCTIONS
ENERGY RANGE
FUNCTIONS
INCLUSIVE INTERACTIONS
INTEGRAL CROSS SECTIONS
INTERACTIONS
MEV RANGE
MEV RANGE 100-1000
NUCLEAR FRAGMENTS
NUCLEAR REACTIONS
PARTICLE INTERACTIONS
TARGETS
TIN 116 TARGET
TIN 124 TARGET