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G.M. counter and pre-determined dead time; Compteur G.M. et temps mort impose

Abstract

This paper is divided into two main parts. - The first section recalls the principle on which a G.M. counter works, and examines the factors which lead to inaccuracies in counting. The concept of dead time, although simple risen associated with the counter alone, becomes complicated as soon as an electronic dead time is introduced to meet the demands of a measurement or an experiment. The resulting dead time, due to the coexistence of these dead times created by a single motivating factor, shows up as a function of certain laws of probability. From the analysis of the various cases of possible combinations, the conditions which must be fulfilled by a system with pre-determined dead time may be determined. This leads to a method for measuring the dead time of a G.M. counter, and the possibility of studying the latter under the utilisation conditions foreseen. - In the second part the principle, construction and characteristics of two systems with pre-determined dead time are discussed. To conclude, a comparison of several experimental results justifies an extension of the possibilities of a G.M. counter used in conjunction with such a system. (author) [French] Deux parties essentielles scindent cet expose. - La premiere  More>>
Authors:
Lamotte, R; Le Baud, P [1] 
  1. Commissariat a l'Energie Atomique, Saclay (France).Centre d'Etudes Nucleaires
Publication Date:
Jul 01, 1959
Product Type:
Technical Report
Report Number:
CEA-R-1340
Resource Relation:
Other Information: 3 refs
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ACCURACY; COMPARATIVE EVALUATIONS; COUNTING RATES; COUNTING TECHNIQUES; DATA COVARIANCES; DEAD TIME; FLIP-FLOP CIRCUITS; GEIGER-MUELLER COUNTERS; PULSE TECHNIQUES; SENSITIVITY
OSTI ID:
20942971
Research Organizations:
CEA Saclay, 91 - Gif-sur-Yvette (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR07R1340096424
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
79 pages
Announcement Date:
Dec 13, 2007

Citation Formats

Lamotte, R, and Le Baud, P. G.M. counter and pre-determined dead time; Compteur G.M. et temps mort impose. France: N. p., 1959. Web.
Lamotte, R, & Le Baud, P. G.M. counter and pre-determined dead time; Compteur G.M. et temps mort impose. France.
Lamotte, R, and Le Baud, P. 1959. "G.M. counter and pre-determined dead time; Compteur G.M. et temps mort impose." France.
@misc{etde_20942971,
title = {G.M. counter and pre-determined dead time; Compteur G.M. et temps mort impose}
author = {Lamotte, R, and Le Baud, P}
abstractNote = {This paper is divided into two main parts. - The first section recalls the principle on which a G.M. counter works, and examines the factors which lead to inaccuracies in counting. The concept of dead time, although simple risen associated with the counter alone, becomes complicated as soon as an electronic dead time is introduced to meet the demands of a measurement or an experiment. The resulting dead time, due to the coexistence of these dead times created by a single motivating factor, shows up as a function of certain laws of probability. From the analysis of the various cases of possible combinations, the conditions which must be fulfilled by a system with pre-determined dead time may be determined. This leads to a method for measuring the dead time of a G.M. counter, and the possibility of studying the latter under the utilisation conditions foreseen. - In the second part the principle, construction and characteristics of two systems with pre-determined dead time are discussed. To conclude, a comparison of several experimental results justifies an extension of the possibilities of a G.M. counter used in conjunction with such a system. (author) [French] Deux parties essentielles scindent cet expose. - La premiere partie rappelle le principe de fonctionnement d'un compteur G.M. et examine les facteurs d'imprecisions affectant les comptages. La notion de temps mort, simple quand elle est associee au compteur seul, se complique des qu'intervient un temps mort electronique introduit pour les besoins d'une mesure ou d'une experience. Le temps mort resultant, du a la coexistence de ces temps morts engendres par une meme cause, se manifeste en fonction de certaines lois de probabilites. L'analyse des differents cas de combinaisons possibles permet de preciser les imperatifs auxquels doit repondre un systeme a temps mort impose. Il en decoule une methode de mesure du temps mort d'un compteur G.M. et la possibilite d'etudier celui-ci dans les conditions d'utilisation envisagees. - La seconde partie commente le principe, la realisation et les caracteristiques de deux ensembles a temps mort impose. En conclusion, la comparaison de quelques resultats d'experiences autorise l'extension des possibilites d'un compteur G.M. utilise conjointement avec un tel ensemble. (auteur)}
place = {France}
year = {1959}
month = {Jul}
}