Neutron Depth Profiling: Overview and Description of NIST Facilities.

Autor: Downing RG; National Institute of Standards and Technology, Gaithersburg, MD 20899., Lamaze GP; National Institute of Standards and Technology, Gaithersburg, MD 20899., Langland JK; National Institute of Standards and Technology, Gaithersburg, MD 20899., Hwang ST; Korea Research Institute for Standards and Science, Taedok Science Town, Taejon, Korea 305-606.
Jazyk: angličtina
Zdroj: Journal of research of the National Institute of Standards and Technology [J Res Natl Inst Stand Technol] 1993 Jan-Feb; Vol. 98 (1), pp. 109-126.
DOI: 10.6028/jres.098.008
Abstrakt: 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 D 2 O 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 × 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 17 O profiles. This paper describes the CNDP instrument, illustrates the neutron depth profiling (NDP) technique with examples, and gives a separate bibliography of NDP publications.
Databáze: MEDLINE
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