Measurement of neutron beam characteristics at the Manuel Lujan Jr. neutron scattering center

被引：29

作者：

Ino, T

Ooi, M

Kiyanagi, Y

Kasugai, Y

Maekawa, F

Takada, H

Muhrer, G

Pitcher, EJ

Russell, GJ

机构：

[1] KEK, Neutron Sci Lab, Inst Mat Struct Sci, High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan

[2] Hokkaido Univ, Sapporo, Hokkaido 0608628, Japan

[3] Japan Atom Energy Res Inst, Tokai, Ibaraki 3191195, Japan

[4] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2004年 / 525卷 / 03期

关键词：

spallation neutron source; thermal neutron; intensity; spectrum; pulse shape;

D O I：

10.1016/j.nima.2004.02.003

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We have measured neutronic performance of the moderators at the Manuel Lujan Jr. Neutron Scattering Center, Los Alamos National Laboratory in order to provide the neutron beam characteristics for the neutron scattering experiments at the Lujan Center as well as to study the validity of neutronic calculation codes. The absolute neutron intensities, the energy spectra, and the neutron pulse shapes (neutron emission time distributions) were measured for the H2O coupled moderator, the high-intensity H2O decoupled moderator, the high-resolution H2O decoupled moderator, and the partially coupled liquid-hydrogen moderator. The overall characteristics of the moderators were found to agree with the designed performance. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：496 / 510

页数：15