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Some recent developments in the application of radioisotope techniques in Australia; Progres recents dans l'application des methodes radioisotopiques en Australie; Poslednie dostizheniya v oblasti primeneniya radioizotopov v Avstralii; Recientes progresos realizados en Australia en las aplicaciones tecnicas de los radioisotopos

Abstract

This paper describes some -of the work carried out by the Isotopes Section of the Australian Atomic Energy Commission during the last two years, particularly relating to industrial and field tests in co-operation with other organizations. A study of the flow pattern of water in a power-station cooling pond was made, using iodine-131 as tracer. The flow of the water was followed quantitatively throughout the 200 000 000 gallon pond by the use of calibrated underwater scintillation-counters. These experiments showed that the flow pattern was affected by the wind more than by any other factor. In the absence of wind an appreciable fraction of the war m water channelled across the surface of the pond and re-entered the power station within 3-4 hours. This indicated a design defect in the layout of the intake which was subsequently modified. A study of the pattern of flow in a Bach subsider for raw sugar solutions is also described. The hot raw solution after lime treatment enters through a single feed line at the top and clarified solution is taken off by pipelines at six different levels. The solids are taken off at the base. About 5 mc of bromine-82 in solution was  More>>
Authors:
Gregory, J N [1] 
  1. Australian Atomic Energy Commission Research Establishment, Sutherland, N.S.W. (Australia)
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: 16 figs, 1 tab., 6 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. 1| 556 p.
Subject:
42 ENGINEERING; 36 MATERIALS SCIENCE; ANSTO; BROMINE 82; COOLING PONDS; DEFECTS; DISTRIBUTION; EFFICIENCY; FIELD TESTS; INTAKE; IODINE 131; MIXERS; PIPELINES; PIPES; SACCHAROSE; SCINTILLATION COUNTERS; SOLIDS; SOLUTIONS; SURFACES; WATER
OSTI ID:
22025646
Research Organizations:
International Atomic Energy Agency, Vienna (Austria); United Nations Educational, Scientific and Cultural Organization, Paris (France)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Other: ISSN 0074-1884; TRN: XA12N1625112939
Submitting Site:
INIS
Size:
page(s) 415-431
Announcement Date:
Jan 16, 2013

Citation Formats

Gregory, J N. Some recent developments in the application of radioisotope techniques in Australia; Progres recents dans l'application des methodes radioisotopiques en Australie; Poslednie dostizheniya v oblasti primeneniya radioizotopov v Avstralii; Recientes progresos realizados en Australia en las aplicaciones tecnicas de los radioisotopos. IAEA: N. p., 1962. Web.
Gregory, J N. Some recent developments in the application of radioisotope techniques in Australia; Progres recents dans l'application des methodes radioisotopiques en Australie; Poslednie dostizheniya v oblasti primeneniya radioizotopov v Avstralii; Recientes progresos realizados en Australia en las aplicaciones tecnicas de los radioisotopos. IAEA.
Gregory, J N. 1962. "Some recent developments in the application of radioisotope techniques in Australia; Progres recents dans l'application des methodes radioisotopiques en Australie; Poslednie dostizheniya v oblasti primeneniya radioizotopov v Avstralii; Recientes progresos realizados en Australia en las aplicaciones tecnicas de los radioisotopos." IAEA.
@misc{etde_22025646,
title = {Some recent developments in the application of radioisotope techniques in Australia; Progres recents dans l'application des methodes radioisotopiques en Australie; Poslednie dostizheniya v oblasti primeneniya radioizotopov v Avstralii; Recientes progresos realizados en Australia en las aplicaciones tecnicas de los radioisotopos}
author = {Gregory, J N}
abstractNote = {This paper describes some -of the work carried out by the Isotopes Section of the Australian Atomic Energy Commission during the last two years, particularly relating to industrial and field tests in co-operation with other organizations. A study of the flow pattern of water in a power-station cooling pond was made, using iodine-131 as tracer. The flow of the water was followed quantitatively throughout the 200 000 000 gallon pond by the use of calibrated underwater scintillation-counters. These experiments showed that the flow pattern was affected by the wind more than by any other factor. In the absence of wind an appreciable fraction of the war m water channelled across the surface of the pond and re-entered the power station within 3-4 hours. This indicated a design defect in the layout of the intake which was subsequently modified. A study of the pattern of flow in a Bach subsider for raw sugar solutions is also described. The hot raw solution after lime treatment enters through a single feed line at the top and clarified solution is taken off by pipelines at six different levels. The solids are taken off at the base. About 5 mc of bromine-82 in solution was injected into the feed line and the appearance of the tracer measured quantitatively by shielded scintillation detectors on each of the six outlet pipes. Analysis of the distribution of activity with time in each line permitted a clear indication of the nature of the flow within the subsider. Finally, a study of the efficiency of mixing in a spiral-type mixer is described. (author) [French] L'auteur decrit certains des travaux accomplis au cours des deux dernieres annees par la Section des isotopes de la Commission australienne de l'energie atomique, notamment les experiences pratiques, industrielles ou autres, entreprises de concert avec d'autres organisations. On a etudie le mouvement des eaux dans le bassin de refroidissement d'une centrale electrique, en utilisant l'iode-131 comme indicateur. Ce mouvement a ete repere quantitativement a travers tout le bassin de 200 millions de gallons a l'aide de compteurs a scintillation etalonnes fonctionnant sous l'eau. On a constate que le circuit emprunte par l'eau etait influence par le vent plus que par tout autre facteur. En absence de vent, une fraction appreciable de l'eau chaude traversait le bassin en surface et revenait a la centrale en l'espace de 3 a 4 heures. Ce fait etait du a un defaut de conception du systeme d'admission de l'eau, defaut auquel il a ete remedie par la suite. L'auteur expose en outre une etude qui a ete faite sur le circuit suivi dans une cuve de Bach par des solutions de sucre brut. Apres traitement a la chaux, la solution chaude de sucre brut penetre par un tuyau d'arrivee aboutissant a la partie superieure de la cuve; la solution clarifiee s'ecoule par des conduites placees a six niveaux differents. Les particules solides sont enlevees a la base. Une quantite d'environ 5 mc de brome-82 solution a ete injectee dans le tuyau d'arrivee et la presence de l'indicateur determinee quantitativement au moyen de detecteurs a scintillation munis d'ecrans et montes sur chacun des six tuyaux de sortie. L'analyse de la repartition de la radioactivite en fonction du temps, dans chaque conduite, a permis de se faire une idee nette du circuit suivi par la solution a l'interieur de la cuve. Enfin, l'auteur etudie l'efficacite d'un melangeur du type helicoidal. (author) [Spanish] El autor describe algunos trabajos realizados en la Seccion de Isotopos de la Comision de Energia Atomica de Australia durante los dos ultimos anos, relativos en particular a ensayos de caracter tecnico ejecutados en cooperacion con otras organizaciones. Los esquemas de circulacion del agua en el estanque de refrigeracion de una central electrica se analizaron con ayuda de yodo-131 como indicador. Se estudio cuantitativamente la circulacion del agua marcada a traves del estanque de 200 millones de galones de capacidad, utilizando contadores de centelleo callibrados instalados debajo del agua. Los experimentos pusieron de relieve que la corriente resultaba mas afectada por el viento que por cualquier otro factor. En ausencia de viento, una proporcion considerable del agua caliente retornaba a la central al cabo de tres o cuatro horas, circulando por la superficie del deposito. Ello puso de manifiesto que el sistema de admision del agua se habia proyectado incorrectamente, por lo que hubo de modificarse. El autor describe asimismo un estudio del esquema de circulacion de las soluciones de azucar bruto en un tanque Bach de sedimentacion. Despues de haber sido tratada con cal, la solucion caliente penetra en el tanque por una tuberia de alimentacion que desemboca en la parte superior del mismo, en tanto que la solucion clarificada se estrae por tuberias situadas a seis niveles distintos. Los solidos precipitados se extraen por la parte inferior. Se inyecto una solucion conteniendo 5 milicuries de bromo-82 en la tuberia de alimentacion y el paso del indicador se midio cuantitativamente a medida que aparecia en las seis tuberias de salida, utilizando detectores de centelleo blindados. Un estudio de la distribucion de la actividad dentro de cada tuberia, en funcion del tiempo, permitio formarse una idea clara de las caracteristicas de la corriente en el tanque de sedimentacion. Por ultimo, el autor estudia el rendimiento de la operacion de mezcla en un mezclador de tipo espiral. (author) [Russian] V dannom dokumente daetsya opisanie nekotorykh rabot, vypolnennykh sektsiej izotopov Komissii po atomnoj ehnergii Avstralii za poslednie dva goda, osobenno v svyazi s promyshlennymi ehksperimentami i ispytaniyami, provedennymi v dannoj oblasti v sotrudnichestve s drugimi organizatsiyami. Bylo provedeno issledovanie skhemy potokov v okhladitel'nom bassejne ehlektrostantsii s ispol'zovaniem joda-131 v vide mechenykh atomov. Potok vody byl proslezhen kolichestvenno vo vsem bassejne ob{sup e}mom v 200000000 gallonov s pomoshch'yu kalibrovannykh podvodnykh stsintillyatsionnykh schetchikov. EHti ehksperimenty pokazali takzhe, chto na potoki bolee drugikh faktorov vliyaet veter. Pri otsutstvii vetra zametnaya chast' teploj vody peresekaet poverkhnost' bassejna i vnov' popadaet na ehlektrostantsiyu v techenie 3-4 chasov. EHto ukazalo na konstruktsionnyj defekt v skheme pogloshcheniya, kotoraya byla zatem usovershenstvovana. Daetsya takzhe opisanie issledovaniya skhemy potokov v bassejne Bakha dlya rastvorov sakhara-syrtsa. Goryachij rastvor syrtsa posle obrabotki izvest'yu vvoditsya cherez edinstvennyj podayushchij truboprovod v verkhnej chasti, a ochishchennyj rastvor vykhodit cherez trubo- provody na shesti razlichnykh urovnyakh. Tverdye veshchestva berutsya so dna. V podayushchij kanal bylo vvedeno okolo 5 millikyuri broma-82 v rastvore, i poyavlenie mechenykh atomov bylo izmereno kolichestvenno ehkranirovannymi stsintillyatsionnymi detektorami v kazhdoj iz shesti vyvodnykh trub. Analiz raspredeleniya aktivnosti po vremeni v kazhdom truboprovode yasno ukazal na kharakter potoka v bassejne. Nakonets, opisyvayutsya rezul'taty izucheniya voprosa o koehffitsiente poleznogo dejstviya protsessa smeshivaniya v smeshivayushchem apparate spiral'nogo tipa. (author)}
place = {IAEA}
year = {1962}
month = {Jan}
}