NEUTRON DEPTH PROFILING - OVERVIEW AND DESCRIPTION OF NIST FACILITIES

被引:123
作者
DOWNING, RG [1 ]
LAMAZE, GP [1 ]
LANGLAND, JK [1 ]
HWANG, ST [1 ]
机构
[1] KOREA RES INST STAND & SCI, TAEJON 305606, SOUTH KOREA
关键词
BORON; COLD NEUTRONS; LITHIUM; NDP; NEUTRON DEPTH PROFILING; NITROGEN; OXYGEN; SILICON; SURFACE ANALYSIS;
D O I
10.6028/jres.098.008
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
The Cold Neutron Depth Profiling (CNDP) instrument at the NIST Cold Neutron Research Facility (CNRF) is now operational. The neutron beam originates from a 16 L D2O ice cold source and passes through a filter of 135 mm of single crystal sapphire. The neutron energy spectrum may be described by a 65 K Maxwellian distribution. The sample chamber configuration allows for remote controlled scanning of 150 x 150 mm sample areas including the varying of both sample and detector angle. The improved sensitivity over the current thermal depth profiling instrument has permitted the first nondestructive measurements of O-17 profiles. This paper describes the CNDP instrument, illustrates the neutron depth profiling (NDP) technique with examples, and gives a separate bibliography of NDP publications.
引用
收藏
页码:109 / 126
页数:18
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