Published November 1985
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Determination of boron in aqueous solutions by solid state nuclear track detectors technique, using a filtered neutron beam
Description
The solid state nuclear track detectors technique has been used for determination of boron in aqueous solutions, using a filtered neutron beam. The particles tracks from the 10B(n,α)Li7 reaction were registered in the CR-39 film, chemically etched in a (30%) KOH solution 700C during 90 minutes. The obtained results showed the usefulness of this technique for boron determination in the ppm range. The inferior detectable limit was 9 ppm. The combined track registration efficiency factor K has been evaluated in the solutions, for the CR-39 detector and its values is K= (4,60 -+ 0,06). 10 -4 cm. (Author)
Availability note (English)
MF available from INIS under the Report Number.Abstract (Portuguese)
Foram determinadas concentracoes de boro em solucoes aquosas por meio da reacao 10B (n,α)7Li. As medidas experimentis foram realizadas com um feixe de neutrons filtrado e a analise das concentracoes foi feita pela tecnica de registro de tracos. O filme detetor utilizado foi o CR-39, revelado numa solucao de KOH (30%) a 700C por um periodo de 90 minutos. Os resultados obtidos demonstraram a viabilidade da tecnica na determinacao de concentracoes de boro a partir de 9 ppm. Foi calculado o fator de eficiencia K de deteccao dos tracos nas solucoes, para o CR-39 obtendo-se K = (4,60 -+ 0,06). 10-4cm. (Autor)Files
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Additional details
Additional titles
- Original title (Portuguese)
- Determinacao de boro em solucoes aquosas empregando um feixe de neutrons filtrado, pela tecnica do registro de tracos
Publishing Information
- Imprint Pagination
- 9 p.
- Report number
- IPEN-PUB--86
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 18010295
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Descriptors DEI
- ALPHA PARTICLES; AQUEOUS SOLUTIONS; BORON; NEUTRON BEAMS; PARTICLE TRACKS; PHOTOGRAPHIC FILM DETECTORS; QUANTITY RATIO
- Descriptors DEC
- BEAMS; CHARGED PARTICLES; DISPERSIONS; ELEMENTS; HELIUM IONS; HOMOGENEOUS MIXTURES; IONIZING RADIATIONS; IONS; MEASURING INSTRUMENTS; MIXTURES; NUCLEON BEAMS; PARTICLE BEAMS; RADIATION DETECTORS; RADIATIONS; SEMIMETALS; SOLUTIONS