A new neutron reflectometer at Australia's HIFAR research reactor

被引：12

作者：

James, M ^{[1
]}

Nelson, A ^{[1
]}

Schulz, JC ^{[1
]}

Jones, MJ ^{[1
]}

Studer, AJ ^{[1
]}

Hathaway, P ^{[1
]}

机构：

[1] Australian Nucl Sci & Technol Org, Bragg Inst, Menai, NSW 2234, Australia

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2005年 / 536卷 / 1-2期

关键词：

neutron reflectometer; pyrolytic graphite monochromator; helium-3; detector; Bragg mirror; plasma polymer;

D O I：

10.1016/j.nima.2004.07.208

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A new neutron reflectometer has been built at Australia's 10 MW HIFAR research reactor. The X 172 reflectometer operates in a monochromatic, angular dispersive mode collecting reflectivity data as a function of angle. The incident neutron beam is monochromated by a pair of pyrolytic graphite crystals (lambda = 2.43 Angstrom) before being collimated using a pair of motorised sintered B4C slits. Detection of the reflected neutron beam is via a 10-atmosphere, helium-3, linear position sensitive detector. Examples of data collected using the X172 reflectometer at air-solid and solid-liquid interfaces are given. Neutron reflectivity values as low as 10(-5) have been measured on this instrument. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：165 / 175

页数：11

共 9 条

[1]

Braun C., 1997, PARRATT32 REFLECTOME

[2]

FELCHER GP, 1981, PHYS REV B, V24, P1995

[3] Neutron reflection from hexadecyltrimethylammonium bromide adsorbed on smooth and rough silicon surfaces [J].