ISOTOPIC YIELDS OF INTERMEDIATE-MASS FRAGMENTS EMITTED IN E/A=50 MEV HE-4+SN-116, SN-124 REACTIONS

被引：35

作者：

BRZYCHCZYK, J

BRACKEN, DS

KWIATKOWSKI, K

MORLEY, KB

RENSHAW, E

VIOLA, VE

机构：

[1] INDIANA UNIV, CYCLOTRON FACIL, BLOOMINGTON, IN 47405 USA

[2] JAGELLONIAN UNIV, PL-31059 KRAKOW, POLAND

[3] INDIANA UNIV, DEPT PHYS, BLOOMINGTON, IN 47405 USA

来源：

PHYSICAL REVIEW C | 1993年 / 47卷 / 04期

关键词：

D O I：

10.1103/PhysRevC.47.1553

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

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

引用

页码：1553 / 1562

页数：10

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