Evolution of a spallation reaction:: experiment and Monte Carlo simulation

被引：46

作者：

Enke, M

Herbach, CM

Hilscher, D

Jahnke, U

Schapiro, O

Letourneau, A

Galin, J

Goldenbaum, F

Lott, B

Péghaire, A

Filges, D

Neef, RD

Nünighoff, K

Paul, N

Schaal, H

Sterzenbach, G

Tietze, A

Pienkowski, L

机构：

[1] Hahn Meitner Inst Berlin GmbH, D-14109 Berlin, Germany

[2] GANIL, CEA, DSM, CNRS,IN2P3, F-14076 Caen 5, France

[3] Forschungszentrum Julich, Inst Kernphys, D-52428 Julich, Germany

[4] Warsaw Univ, Heavy Ion Lab, PL-02093 Warsaw, Poland

来源：

NUCLEAR PHYSICS A | 1999年 / 657卷 / 03期

关键词：

spallation reactions; total reaction cross section; production cross section for n; hydrogen; and; helium; excitation energy distributions; pre-equilibrium emission;

D O I：

10.1016/S0375-9474(99)00345-0

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：

Reaction cross sections and production cross sections for neutrons, hydrogen, and helium have been measured for 1.2, 1.8 GeV p+Fe, Ni, Ag, Ta, W, Au, Pb and U and are compared with different intra-nuclear-cascade- combined with evaporation-models. Agreement for neutrons and considerable differences for light charged particles are observed between experiment and calculation as well as between different models. The discrepancies are associated with specific deficiencies in the models. The exclusive data measured with two 4 pi-detectors for neutron and charged particle detection allowed furthermore a systematic comparison of observables characteristic of different stages of the temporal evolution of a spallation reaction: inelastic collision probability, excitation energy distribution, pre-equilibrium emission, and inclusive production cross sections. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：317 / 339

页数：23

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