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Partial radiative capture of resonance neutrons; Capture radiative partielle des neutrons de resonance

Abstract

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. {sup 195}Pt + n and {sup 183}W + n allow the study of the distribution of partial radiative widths and their eventual correlation and also the variation of < {gamma}{sub {gamma}{sub i}} > with E{sub {gamma}}. 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 {sup 195}Pt + n, {sup 197}Au + n and {sup 59}Co + 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) [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 {sup 195}Pt + n et {sup 183}W + n permettent l'analyse de la distribution de resonance en resonance des largeurs radiatives partielles {gamma}{sub {gamma}{sub i}} et de leur eventuelle correlation, ainsi que  More>>
Authors:
Samour, C [1] 
  1. Commissariat a l'Energie Atomique, Saclay (France). Centre d'Etudes Nucleaires
Publication Date:
Jul 01, 1969
Product Type:
Thesis/Dissertation
Report Number:
CEA-R-3776
Resource Relation:
Other Information: TH: These ES-sciences physiques; 300 refs; PBD: 1969
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 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
OSTI ID:
20547222
Research Organizations:
CEA Saclay, 91 - Gif-sur-Yvette (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR04R3776002829
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
[244] pages
Announcement Date:

Citation Formats

Samour, C. Partial radiative capture of resonance neutrons; Capture radiative partielle des neutrons de resonance. France: N. p., 1969. Web.
Samour, C. Partial radiative capture of resonance neutrons; Capture radiative partielle des neutrons de resonance. France.
Samour, C. 1969. "Partial radiative capture of resonance neutrons; Capture radiative partielle des neutrons de resonance." France.
@misc{etde_20547222,
title = {Partial radiative capture of resonance neutrons; Capture radiative partielle des neutrons de resonance}
author = {Samour, C}
abstractNote = {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. {sup 195}Pt + n and {sup 183}W + n allow the study of the distribution of partial radiative widths and their eventual correlation and also the variation of < {gamma}{sub {gamma}{sub i}} > with E{sub {gamma}}. 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 {sup 195}Pt + n, {sup 197}Au + n and {sup 59}Co + 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) [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 {sup 195}Pt + n et {sup 183}W + n permettent l'analyse de la distribution de resonance en resonance des largeurs radiatives partielles {gamma}{sub {gamma}{sub i}} et de leur eventuelle correlation, ainsi que l'etude de la variation de < {gamma}{sub {gamma}{sub i}} > en fonction de E{sub {gamma}}. 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 {sup 195}Pt + n, {sup 197}Au + n et {sup 59}Co + 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)}
place = {France}
year = {1969}
month = {Jul}
}