PHOTOEXCITATION OF NUCLEAR ISOMERS BY (GAMMA,GAMMA') REACTIONS

被引：71

作者：

CARROLL, JJ

BYRD, MJ

RICHMOND, DG

SINOR, TW

TAYLOR, KN

HODGE, WL

PAISS, Y

EBERHARD, CD

ANDERSON, JA

COLLINS, CB

SCARBROUGH, EC

ANTICH, PP

AGEE, FJ

DAVIS, D

HUTTLIN, GA

KERRIS, KG

LITZ, MS

WHITTAKER, DA

机构：

[1] UNIV TEXAS, SW MED CTR, DALLAS, TX 75235 USA

[2] HARRY DIAMOND LABS, AURORA SIMULATOR FACIL, ADELPHI, MD 20783 USA

来源：

PHYSICAL REVIEW C | 1991年 / 43卷 / 03期

关键词：

D O I：

10.1103/PhysRevC.43.1238

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：

Photoexcitation of the isomers of 19 nuclides was examined in this work. Four accelerators were used as sources of bremsstrahlung to expose the samples and end-point energies covered the range from 0.5 to 11 MeV. No evidence was found for nonresonant process of excitation. However, more than half the cases showed enhanced channels for the resonant photoexcitation of isomers with integrated cross sections approaching 10(-21) cm-2 keV. These results are three to four orders of magnitude larger than values usually characterizing (gamma, gamma') reactions.

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页码：1238 / 1247

页数：10

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