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Title: Determination of {sup 140}La fission product interference factor for INAA

Instrumental Neutron Activation Analysis (INAA) is a technique widely used to determine the concentration of several elements in several kinds of matrices. However if the sample of interest has higher relative uranium concentration the obtained results can be interfered by the uranium fission products. One of these cases that is affected by interference due to U fission is the {sup 140}La, because this radioisotope used in INAA for the determination of concentration the La is also produced by the {sup −}β of {sup 140}Ba, an uranium fission product. The {sup 140}La interference factor was studied in this work and a factor to describe its time dependence was obtained.
Authors:
; ; ;  [1]
  1. Instituto de Pesquisas Energéticas e Nucleares, IPEN/CNEN-SP, São Paulo - SP (Brazil)
Publication Date:
OSTI Identifier:
22390466
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1625; Journal Issue: 1; Conference: 36. Brazilian Workshop on Nuclear Physics, Sao Sebastiao, SP (Brazil), 1-5 Sep 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; BARIUM 140; CONCENTRATION RATIO; FISSION PRODUCTS; INTERFERENCE; LANTHANUM 140; MULTI-ELEMENT ANALYSIS; NEUTRON ACTIVATION ANALYSIS; QUANTITATIVE CHEMICAL ANALYSIS; TIME DEPENDENCE; URANIUM