Three fission modes of 220Ra -: art. no. 041304

被引：30

作者：

Pokrovsky, IV ^{[1
]}

Calabretta, L

Itkis, MG

Kondratiev, NA

Kozulin, EM

Maiolino, C

Prokhorova, EV

Rusanov, AY

Tretyakova, SP

机构：

[1] Joint Inst Nucl Res, Flerov Lab Nucl React, RU-141980 Dubna, Moscow Region, Russia

[2] Ist Nazl Fis Nucl, Lab Nazl Sud, I-95123 Catania, Italy

[3] Natl Nucl Ctr Kazakhstan, Inst Nucl Phys, Alma Ata 480082, Kazakhstan

来源：

PHYSICAL REVIEW C | 1999年 / 60卷 / 04期

关键词：

D O I：

10.1103/PhysRevC.60.041304

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：

Mass-energy distributions of the Ra-220 fission fragments produced in the C-12+Pb-208 reaction at projectile energies higher and deep below the Coulomb barrier have been measured using a two-arm time-of-flight spectrometer CORSET. It has been shown that an asymmetric component appears at the sides of the prevailing symmetric fission with a cooling of the compound nucleus. The component consists of two standard modes with average masses of similar or equal to 132 and similar or equal to 139. A three-component structure has also been observed in the total kinetic energy distributions in the range of asymmetric fission fragment masses. [S0556-2813(99)50909-6].

引用

页数：4

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