NEUTRON-SCATTERING BY HYDROGEN IN COLD NEUTRON PROMPT GAMMA-ACTIVATION ANALYSIS

Authors
PAUL RL MACKEY EA
Citation
Rl. Paul et Ea. Mackey, NEUTRON-SCATTERING BY HYDROGEN IN COLD NEUTRON PROMPT GAMMA-ACTIVATION ANALYSIS, Journal of radioanalytical and nuclear chemistry, 181(2), 1994, pp. 321-333
Citations number
14
Categorie Soggetti
Chemistry Analytical","Nuclear Sciences & Tecnology","Chemistry Inorganic & Nuclear
Journal title
Journal of radioanalytical and nuclear chemistry → ACNP
ISSN journal
02365731
Volume
181
Issue
2
Year of publication
1994
Pages
321 - 333
Database
ISI
SICI code
0236-5731(1994)181:2<321:NBHICN>2.0.ZU;2-P
Abstract
The effects of neutron scattering by hydrogen within targets for cold neutron prompt gamma-ray activation analysis (CNPGAA) have been charac terized. For most targets studied, the probability for neutron absorpt ion, and hence CNPGAA sensitivities (counts s(-1).mg(-1)) decrease wit h increasing H content and with target thickness. Comparisons with res ults from thermal neutron PGAA indicate that the effects of cold neutr on scattering differ from those of thermal neutron scattering. CNPGAA sensitivities for ''1/v'' nuclides show similar sensitivity decreases, while Sm sensitivities show smaller decreases.