Production of medium-weight isotopes by fragmentation in 750 a MeV 238U on 208Pb collisions

被引：20

作者：

Benlliure, J

Armbruster, P

Bernas, M

Bockstiegel, C

Czajkowski, S

Donzaud, C

Geissel, H

Heinz, A

Kozhuharov, C

Dessagne, P

Munzenberg, G

Pfutzner, M

Stephan, C

Schmidt, KH

Summerer, K

Schwab, W

Tassan-Got, L

Voss, B

机构：

[1] Gesell Schwerionenforsch GmbH, D-64291 Darmstadt, Germany

[2] Inst Phys Nucl, F-91406 Orsay, France

[3] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany

[4] CEN Bordeaux Gradignan, F-33175 Gradignan, France

[5] Ctr Rech Nucl, IN2P3, Strasbourg, France

来源：

EUROPEAN PHYSICAL JOURNAL A | 1998年 / 2卷 / 02期

关键词：

D O I：

10.1007/s100500050108

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：

Projectile fragmentation of U-238 in lead target was investigated at a bombarding energy of 750 A MeV. Isotopic production cross sections of about 250 different projectile fragments in the element range Z = 30-53 were measured with the FRagment Separator (FRS). The magnetic selection and the kinematical analysis of the measured isotopes allowed to disentangle fission and fragmentation residues. The mass loss of these residues indicates a violent collision where a large amount of energy is dissipated. The position of the fragmentation corridor defined by the measured residues aas used to determine an effective proton-evaporation barrier.

引用

页码：193 / 198

页数：6

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