Published 1969
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Partial radiative capture of resonance neutrons
- 1. Commissariat a l'Energie Atomique, Saclay (France). Centre d'Etudes Nucleaires
Description
The radiative capture of resonance neutrons has been studied near the Saclay linac between 0.5 and 700 eV with time-of-flight method and a Ge(Li) detector. 195Pt + n and 183W + n allow the study of the distribution of partial radiative widths and their eventual correlation and also the variation of < Γγi > with Eγ. The mean values of Ml and El transition intensities are compared in several tin isotopes. Interference effects, either between resonances or between direct capture and resonant capture are found in 195Pt + n, 197Au + n and 59Co + n. The excited level schemes of a great deal of nuclei are obtained and compared with theoretical predictions. This study has been completed by an analysis of thermal spectrum. (author)
Availability note (English)
Available from INIS in electronic formAbstract (French)
La capture radiative des neutrons de resonance a ete etudiee pres de l'accelerateur lineaire de Saclay entre 0,5 et 700 eV a l'aide de la methode du temps-de-vol et d'un detecteur Ge(Li). Les noyaux 195Pt + n et 183W + n permettent l'analyse de la distribution de resonance en resonance des largeurs radiatives partielles Γγi et de leur eventuelle correlation, ainsi que l'etude de la variation de < Γγi > en fonction de Eγ. Les intensites moyennes des transitions Ml et El sont comparees pour quelques isotopes de l'etain. Des effets d'interference, soit entre resonances, soit entre capture directe et capture resonnante sont mis en evidence dans 195Pt + n, 197Au + n et 59Co + n. Enfin les schemas des etats excites d'un grand nombre de noyaux sont obtenus et compares avec les predictions theoriques. Cette etude a ete completee par une analyse des spectres thermiques. (auteur)Files
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Additional details
Additional titles
- Original title (French)
- Capture radiative partielle des neutrons de resonance
Publishing Information
- Imprint Pagination
- [244 p.]
- Report number
- CEA-R--3776
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 36002829
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Resource subtype / Literary indicator
- Thesis
- Descriptors DEI
- CAPTURE; COBALT 59 TARGET; COMPOUND-NUCLEUS REACTIONS; EV RANGE; GOLD 197 TARGET; INTEGRAL CROSS SECTIONS; LEVEL WIDTHS; NEUTRON REACTIONS; PLATINUM 195 TARGET; PORTER-THOMAS DISTRIBUTION; TIN 112 TARGET; TIN 116 TARGET; TIN 117 TARGET; TIN 118 TARGET; TIN 119 TARGET; TIN 124 TARGET; TUNGSTEN 183 TARGET
- Descriptors DEC
- BARYON REACTIONS; CROSS SECTIONS; ENERGY RANGE; HADRON REACTIONS; NUCLEAR REACTIONS; NUCLEON REACTIONS; TARGETS
Optional Information
- Notes
- 300 refs.