ISSN:
1588-2780
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Energy, Environment Protection, Nuclear Power Engineering
Notes:
Abstract Neutron activation analysis, using inelastic scattering, provides a quantitative, non-invasive technique of studying silica burdens and is potentially useful as a screening procedure for occupationally exposed workers. In this method, silicon is measured using the fast neutron inelastic scattering reaction28Si(n,n′ γ)28Si which emits 1779 keV γ-rays. The method requires a source of fast neutrons (〉 2MeV). A 2MV Van de Graaff generator has been developed to produce a pulsed beam of 5.2 MeV neutrons. The pulsed beam has the advantage of improving measurement sensitivity by separating in Bone the inelastic scattering γ-rays from those due to thermal-neutron capture reactions. The incident neutron energy was chosen to maximise the silicon γ-ray count rate, while keeping the signal from the competing reaction31P(n,α)28Al negligible.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02048887
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