Determination of energetic neutron spatial distribution using neutron induced nuclear recoil events

被引：15

作者：

Hashemi-Nezhad, SR

Dolleiser, M

Brandt, R

Westmeier, W

Odoj, R

Krivopustov, MI

Kulakov, BA

Sosnin, AN

机构：

[1] Univ Sydney, Sch Phys, Dept High Energy Phys, Sydney, NSW 2006, Australia

[2] Univ Marburg, FB 15, Inst Phys Kern & Makromol Chem, Marburg, Germany

[3] Forschungszentrum Julich, Inst Sicherheitsforsch & Reaktorsicherheit, Julich, Germany

[4] Joint Inst Nucl Res, Dubna, Russia

[5] Dr Westmeier GmbH, D-35085 Ebsdorfergrund, Germany

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2002年 / 493卷 / 1-2期

关键词：

spallation neutrons; neutron distribution; recoil tracks; MCNPX code;

D O I：

10.1016/S0168-9002(02)01551-6

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Neutron induced nuclear recoils were used to determine the spatial distribution of the weakly moderated spallation neutrons produced in the interaction of 1 GeV protons with lead and uranium-lead targets. CR39 plastic track detectors were used to record neutron-induced recoil tracks. The track density measurements were carried out using a fully automated optical microscope. The experimental results were compared with Monte Carlo simulations using MCNPX-2.1.5 code and an extension code that was written for this purpose. A good agreement was found between the experiment and calculations for normalised results. Applicability of the MCNPX-2.1.5 code for absolute recoil track density determination is discussed. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：121 / 130

页数：10

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