Published 1969
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Contribution to activation analysis with 14-MeV neutrons in the case of radioelements having a half-life less than one second
Creators
- 1. Commissariat a l'Energie Atomique, Grenoble (France). Centre d'Etudes Nucleaires
Description
The particular problems arising from the use in the activation analysis of radioelements having a half-life inferior to one second have been studied in the case where no sample transfer occurs: cyclic irradiation and counting, detector blocking system, neutron monitor, background noise. Fifteen nuclear reactions have been studied in order to obtain information about the possibility of using them in activation analysis using pulses of 14 MeV neutrons. The half-lives of the radio-isotopes produced vary from 0.5 to 870 milliseconds. The results obtained using low flux neutron-generator are discussed mainly from the point of view of the sensitivity and the accuracy. (author)
Availability note (English)
Available from INIS in electronic formAbstract (French)
Les problemes particuliers poses par l'utilisation dans l'analyse par activation de radioelements de periodes inferieures a une seconde ont ete etudies dans le cas ou aucun transfert d'echantillon n'est effectue: irradiation et comptage cycliques, systeme de blocage du detecteur, moniteur de neutrons, bruit de fond. Quinze reactions nucleaires ont ete examinees pour obtenir des informations sur leurs possibilites d'applications a l'analyse par activation au moyen d'impulsions de neutrons de 14 MeV. Les periodes des radioisotopes produits vont de 0,5 a 870 millisecondes. Les resultats obtenus en utilisant, un generateur de neutrons 14 MeV de faible debit sont discutes principalement sous les aspects de la sensibilite et de la precision. (auteur)Files
36002800.pdf
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Additional details
Additional titles
- Original title (French)
- Contribution a l'analyse par activation au moyen de neutrons de 14 MeV dans les cas de radioelements de periodes inferieures a une seconde
Publishing Information
- Imprint Pagination
- [115 p.]
- Report number
- CEA-R--3694
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 36002800
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- COUNTING TECHNIQUES; MEV RANGE 10-100; NEUTRON ACTIVATION ANALYSIS; NEUTRON BEAMS; PHOTOMULTIPLIERS; PULSE TECHNIQUES
- Descriptors DEC
- ACTIVATION ANALYSIS; BEAMS; CHEMICAL ANALYSIS; ENERGY RANGE; MEV RANGE; NONDESTRUCTIVE ANALYSIS; NUCLEON BEAMS; PARTICLE BEAMS; PHOTOTUBES
Optional Information
- Notes
- 77 refs.