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Radioactive thickness gauge; Jauge d'epaisseur radioactive; Radioaktivnyj tolshchinomer; Calibrador radiactivo

Conference:

Abstract

The author describes a thickness gauge in which the scintillating crystal detector alternately ''sees'' a radioactive source through the material which is to be measured and then a control source of the same material; the radiations are separated in time by an absorbing valve whose sections are alternately full and hollow. The currents corresponding to the two sources are separated beyond the photomultiplier tube by a detector synchronized with the rotation of the valve. The quotient of these two currents is then obtained with a standard recording potentiometer. It is found that the average value of the response-which is in the form G = f(I{sub 1}/I{sub 2})-is not affected by decay of the radioactive sources, and that it is little influenced by variations of high tension, temperature, or properties of the air in the sourcedetector interval. The performance of the gauge is given. (author) [French] L'auteur decrit une jauge d'epaisseur dans laquelle le cristal scintillant detecteur alternativement une source radioactive a travers le materiau a mesurer, puis une source de reference de meme nature; la separation des rayonnements est faite dans le temps a l'aide d'un volet absorbeur a secteurs alternativement pleins et creux. Les courants correspondant aux deux  More>>
Authors:
Guizerix, J [1] 
  1. Centre d'Etudes Nucleaires de Grenoble, Grenoble (France)
Publication Date:
Jan 15, 1962
Product Type:
Conference
Resource Relation:
Conference: Conference on the Use of Radioisotopes in the Physical Sciences and Industry, Copenhagen (Denmark), 6-17 Sep 1960; Other Information: 9 figs, 3 tabs, 3 refs; Related Information: In: Radioisotopes in the Physical Sciences and Industry. Proceedings of the Conference on the Use of Radioisotopes in the Physical Sciences and Industry. V. II| 566 p.
Subject:
07 ISOTOPES AND RADIATION SOURCES; CONTROL; CRYSTALS; POTENTIOMETERS; RADIATION SOURCES; ROTATION; THICKNESS GAGES
OSTI ID:
22025662
Research Organizations:
International Atomic Energy Agency, Vienna (Austria); United Nations Educational, Scientific and Cultural Organization, Paris (France)
Country of Origin:
IAEA
Language:
French
Other Identifying Numbers:
Other: ISSN 0074-1884; TRN: XA12N1678112955
Submitting Site:
INIS
Size:
page(s) 81-92
Announcement Date:
Jan 16, 2013

Conference:

Citation Formats

Guizerix, J. Radioactive thickness gauge; Jauge d'epaisseur radioactive; Radioaktivnyj tolshchinomer; Calibrador radiactivo. IAEA: N. p., 1962. Web.
Guizerix, J. Radioactive thickness gauge; Jauge d'epaisseur radioactive; Radioaktivnyj tolshchinomer; Calibrador radiactivo. IAEA.
Guizerix, J. 1962. "Radioactive thickness gauge; Jauge d'epaisseur radioactive; Radioaktivnyj tolshchinomer; Calibrador radiactivo." IAEA.
@misc{etde_22025662,
title = {Radioactive thickness gauge; Jauge d'epaisseur radioactive; Radioaktivnyj tolshchinomer; Calibrador radiactivo}
author = {Guizerix, J}
abstractNote = {The author describes a thickness gauge in which the scintillating crystal detector alternately ''sees'' a radioactive source through the material which is to be measured and then a control source of the same material; the radiations are separated in time by an absorbing valve whose sections are alternately full and hollow. The currents corresponding to the two sources are separated beyond the photomultiplier tube by a detector synchronized with the rotation of the valve. The quotient of these two currents is then obtained with a standard recording potentiometer. It is found that the average value of the response-which is in the form G = f(I{sub 1}/I{sub 2})-is not affected by decay of the radioactive sources, and that it is little influenced by variations of high tension, temperature, or properties of the air in the sourcedetector interval. The performance of the gauge is given. (author) [French] L'auteur decrit une jauge d'epaisseur dans laquelle le cristal scintillant detecteur alternativement une source radioactive a travers le materiau a mesurer, puis une source de reference de meme nature; la separation des rayonnements est faite dans le temps a l'aide d'un volet absorbeur a secteurs alternativement pleins et creux. Les courants correspondant aux deux sources sont separes apres le tube photomultiplicateur par un detecteur synchrone avec la rotation du volet. On fait ensuite le quotient de ces deux courants a l'aide d'un isotentiometre enregistreur classique. Il resulte de cette disposition que la valeur moyenne de la reponse, qui est de la forme G = f(I{sub 1}/I{sub 2}) n'est pas affectee par la decroissance des sources radioactives, et qu'elle est peu sensible aux variations de haute tension, de temperature ou des proprietes de l'air dans l'intervalle source-detecteur. On donne les performances de cette jauge. (author) [Spanish] El autor describe un calibrador en el que el cristal detector de centelleo alternativamente una fuente radiactiva a traves del material que se desea medir y luego una fuente testigo de la misma naturaleza; la separacion de las radiaciones en el tiempo se efectua con ayuda de un obturador absorbente, con sectores llenos y huecos alternados. Despues del tubo fotomultiplicador se separan las corrientes que corresponden a cada una de las fuentes mediante un detector sincronizado con el movimiento de rotacion del obturador. A continuacion, se obtiene el cociente de ambas con ayuda de un potenciometro registrador de tipo clasico. Gracias a este montaje, el valor medio de la respuesta, que es del tipo G = f(I{sub 1}/I{sub 2}), no resulta afectado por el decrecimiento de las fuentes radiactivas; ademas, las variaciones de la alta tension, de la temperatura o de las propiedades del aire en el intervalo comprendido entre la fuente y el detector solo ejercen una reducida influencia sobre el valor obtenido. El autor expone las caracteristicas de funcionamiento de este calibrador. (author) [Russian] Avtor opisyvaet tolshchinomer, v kotorom stsintillyatsionnyj kristall-detektor poperemenno ''prosmatrivaet'' radioaktivnyj istochnik cherez izmeryaemyj material, a zatem sravnitel'nyj istochnik takogo zhe kharaktera; razdelenie izluchenij osushchestvlyaetsya inogda pri pomoshchi zaslonki segmentnogo poglotitelya poperemenno polnogo i pologo. Toki, sootvetstvuyushchie oboim istochnikam, razdelyayutsya posle trubki fotoumnozhitelya sinkhronnym detektorom pri pomoshchi vrashcheniya zaslonki. Zatem vychislyayut koehffitsient ehtikh oboikh tokov s pomoshch'yu obychnogo kontrol'nogo potentsiometra. Iz ehtogo polozheniya vytekaet, chto srednee znachenie otveta, kotoroe sleduet iz formuly G = f(I{sub 1}/I{sub 2}) ne uchityvaetsya pri raspade radioaktivnykh istochnikov i chto ono malo chuvstvitel'no k izmeneniyam vysokogo napryazheniya, temperatury ili atmosfernykh svojstv, imeyushchikh mesto v promezhutke mezhdu istochnikom i detektorom. Privodyatsya rezul'taty ehtogo izmeritelya. (author)}
place = {IAEA}
year = {1962}
month = {Jan}
}