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Design Experience on a Multi-Mecacurie Radiation Facility; Etudes et experiences concernant un emetteur de rayonnements de plusieurs megacuries; Opytnoe proektirovani e ustanovki, obladayushchej sverkhmoshchnym izlucheniem; Estudios sobre el proyecto de un dispositivo de irradiacion de varios megacuries

Conference:

Abstract

This paper describes the research and development work on radiator design and engineering which has been carried out with respect to the design of the {sup H}igh Intensity Food Irradiator{sup .} The problems discussed are those common to all large, package irradiators. The first phase of the research and development work was devoted to achieving a clear understanding of plaque type radiators and the effect of changes in the design parameters on the performance of such a unit. Initially, the performance of a single plaque radiator was studied theoretically, experimentally and by computer analysis. The parameters studied were source size and specific activity, source thickness and cladding, target density and geometrical factors including source and target heights, lengths and widths, and size of air gap between source and target. The performance was examined with respect to capacity, dwell time in the unit, dose uniformity, unit efficiency, and overall cost. Simplified expressions for radiator performance have been developed and verified by experiment. A three dimensional code for applying a Monte Carlo type analysis to radiator performance has been developed and applied to this problem with good agreement with experimental measurements. The radiator design programme was expanded to include an investigation of  More>>
Authors:
Brunton, D C; Donovan, J; Voyvodic, L; [1]  Armour Research Foundation, 10 W. 35th Street, Chicago 10, IL (United States)]
  1. Curtiss-Wright Corporation, Princeton, NJ (United States)
Publication Date:
Jul 15, 1960
Product Type:
Conference
Resource Relation:
Conference: Conference on the application of large radiation sources in industry, Warsaw (Poland), 8-12 Sep 1959; Other Information: 6 figs., 2 tabs.; Related Information: In: Large radiation sources in industry. Proceedings of a conference on the application of large radiation sources in industry. V. I| 492 p.
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; CONTROL; DOSES; EFFICIENCY; FOOD; LEAK TESTING; MONTE CARLO METHOD; RADIATORS; SAFETY; SPECIFICATIONS; THICKNESS
OSTI ID:
22025804
Research Organizations:
International Atomic Energy Agency, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Other: ISSN 0074-1884; TRN: XA12R0191113097
Submitting Site:
INIS
Size:
page(s) 127-139
Announcement Date:
Jan 16, 2013

Conference:

Citation Formats

Brunton, D C, Donovan, J, Voyvodic, L, and Armour Research Foundation, 10 W. 35th Street, Chicago 10, IL (United States)]. Design Experience on a Multi-Mecacurie Radiation Facility; Etudes et experiences concernant un emetteur de rayonnements de plusieurs megacuries; Opytnoe proektirovani e ustanovki, obladayushchej sverkhmoshchnym izlucheniem; Estudios sobre el proyecto de un dispositivo de irradiacion de varios megacuries. IAEA: N. p., 1960. Web.
Brunton, D C, Donovan, J, Voyvodic, L, & Armour Research Foundation, 10 W. 35th Street, Chicago 10, IL (United States)]. Design Experience on a Multi-Mecacurie Radiation Facility; Etudes et experiences concernant un emetteur de rayonnements de plusieurs megacuries; Opytnoe proektirovani e ustanovki, obladayushchej sverkhmoshchnym izlucheniem; Estudios sobre el proyecto de un dispositivo de irradiacion de varios megacuries. IAEA.
Brunton, D C, Donovan, J, Voyvodic, L, and Armour Research Foundation, 10 W. 35th Street, Chicago 10, IL (United States)]. 1960. "Design Experience on a Multi-Mecacurie Radiation Facility; Etudes et experiences concernant un emetteur de rayonnements de plusieurs megacuries; Opytnoe proektirovani e ustanovki, obladayushchej sverkhmoshchnym izlucheniem; Estudios sobre el proyecto de un dispositivo de irradiacion de varios megacuries." IAEA.
@misc{etde_22025804,
title = {Design Experience on a Multi-Mecacurie Radiation Facility; Etudes et experiences concernant un emetteur de rayonnements de plusieurs megacuries; Opytnoe proektirovani e ustanovki, obladayushchej sverkhmoshchnym izlucheniem; Estudios sobre el proyecto de un dispositivo de irradiacion de varios megacuries}
author = {Brunton, D C, Donovan, J, Voyvodic, L, and Armour Research Foundation, 10 W. 35th Street, Chicago 10, IL (United States)]}
abstractNote = {This paper describes the research and development work on radiator design and engineering which has been carried out with respect to the design of the {sup H}igh Intensity Food Irradiator{sup .} The problems discussed are those common to all large, package irradiators. The first phase of the research and development work was devoted to achieving a clear understanding of plaque type radiators and the effect of changes in the design parameters on the performance of such a unit. Initially, the performance of a single plaque radiator was studied theoretically, experimentally and by computer analysis. The parameters studied were source size and specific activity, source thickness and cladding, target density and geometrical factors including source and target heights, lengths and widths, and size of air gap between source and target. The performance was examined with respect to capacity, dwell time in the unit, dose uniformity, unit efficiency, and overall cost. Simplified expressions for radiator performance have been developed and verified by experiment. A three dimensional code for applying a Monte Carlo type analysis to radiator performance has been developed and applied to this problem with good agreement with experimental measurements. The radiator design programme was expanded to include an investigation of multi-plaque, multi-pass systems and hence includes essentially the three dimensional matrix of sources as well as plaque type radiators. Engineering requirements with respect to conveyors for product handling are examined in conjunction with source design and effect on performance specifications. Source handling methods, safety systems and facility controls are likewise reviewed. Finally the preparation of the source material itself including measurement, encapsulation and leak testing is described. (author) [French] Le memoire decrit les travaux de recherche et de mise au point pour le dessin et la construction d'emetteurs de rayonnements, effectues en vue de la realisation d'une ''chambre d'irradiation a haute intensite pour aliments''. Les problemes examines sont ceux qui se posent pour toutes les grandes chambres d'irradiation transportables. La premiere phase des travaux a consiste a bien comprendre le fonctionnement des emetteurs du type ''plaque'' et les effets des modifications des parametres de construction sur le rendement de telles installations. Pour commencer, le rendement d'un emetteur a plaque unique a ete etudie theoriquement, experimentalemen t et statistiquement au moyen d'une calculatrice. Les parametres etudies etaient la dimension et l'activite specifique de la source, l'epaisseur et le gainage de la source, la densite de la cible et des facteurs geometriques tels que les hauteur, longueur et largeur de la source et de la cible, ainsi que les dimensions du volume d'air entre la source et la cible. Le rendement a ete etudie au point de vue de la capacite, du temps de sejour dans l'installation des produits a traiter, de l'uniformite de la dose delivree, de l'efficacite de l'installation et du prix de revient total. Des formules simplifiees pour le calcul du rendement des emetteurs ont ete mises au point et verifiees experimentalement. Un code a trois dimensions permettant d'appliquer au rendement des emetteurs la methode d'evaluation statistique dite ''de Monte Carlo'' a ete mis au point; les resultats obtenus ont ete sensiblement conformes aux chiffres fournis par l'experience. Le programme d'etude des emetteurs a ete elargi et comprend maintenant une recherche sur les dispositifs a plaques et voies multiples; il porte donc sur les modeles de sources a trois dimensions aussi bien que sur les emetteurs du type ''plaque''. Les besoins technologiques en ce qui concerne les dispositifs de manipulation des produits sont examines dans leurs rapports avec la structure de la source et leurs incidences sur les caracteristiques de rendement. Les procedes de manipulation des sources, les dispositifs de securite et les organes de commande de l'installation sont egalement etudies. Enfin, le memoire decrit la preparation du produit qui emet les rayonnements, y compris sa mesure, sa mise en capsule et la verification pour prevenir les fuites. (author) [Spanish] Los autores describen los trabajos de investigacion y perfeccionamiento realizados con miras a la construccion de fuentes adecuadas para el ''Irradiador de elevada intensidad para alimentos''. Los problemas que estudian son los comunes a todos los irradiadores transportables de gran tamano. La primera fase de los trabajos consistio en adquirir conocimientos mas exactos sobre las fuentes de placa y de los efectos que las variaciones de los parametros constructivos ejercen sobre el rendimiento de esas instalaciones. En primer lugar, se llevo a cabo un estudio teorico, experimental y mediante maquinas de calcular del rendimiento de los irradiadores de placa unica. Los parametros considerados han sido el tamano y la actividad especifica de la fuente, su espesor y revestimiento, la densidad del blanco y factores geometricos tales como la altura, longitud y anchura de la fuente y del blanco, asi como las dimensiones del volumen de aire que separa la fuente del blanco. Se ha estudiado el rendimiento en funcion de la capacidad del irradiador, del tiempo de exposicion, de la uniformidad de la dosis, de la eficacia de la instalacion y de los costes totales. Se han propuesto formulas simplificadas para calcular el rendimiento de los irradiadores; la validez de esas formulas se ha comprobado experimentalmente. Se ha establecido un codigo tridimensional que permite aplicar el metodo denominado de ''Monte Carlo'' al calculo del rendimiento de los irradiadores; los resultados obtenidos estan en armonia con los datos determinados por via experimental. El programa de estudio se ha extendido a los dispositivos de varias placas y de varios pasos, y abarca por consiguiente tanto las fuentes de tres dimensiones como los irradiadores de tipo placa. Los autores examinan los requisitos tecnicos en lo referente a los dispositivos de transporte de las sustancias en relacion con la estructura de la fuente y con sus efectos sobre el rendimiento. De igual modo estudian los metodos de manipulacion de la fuente, las sistemas de seguridad y los dispositivos de regulacion. Por ultimo, describen la preparacion de la sustancia radiactiva propiamente dicha, comprendida su medicion, introduccion en la capsula y prueba de estanqueidad. (author) [Russian] V dannom dokumente opisyvaetsya rabota po issledovaniyu i razrabotke proekta i stroitel'stva izluchatelya, kotoraya provodilas' v svyazi s proektom ''Vysokointensivnyj izluchatel' dlya pishchevykh produktov''. Obsuzhdaemye problemy yavlyayutsya obshchimi dlya vsekh bol'shikh i malogabaritnykh izluchatelej. Pervaya stadiya raboty po issledovaniyu i razrabotke proekta kasalas' uyasneniya roli diskovogo tipa izluchatelej, a takzhe vliyaniya izmenenij v parametrakh pri sooruzhenii takoj ustanovki. Vnachale sooruzhenie odnogo diskovogo izluchatelya bylo izucheno putem provedeniya teoreticheskogo ehksperimental'nogo i raschetnogo analizov. Izuchennye parametry kasalis' kolichestva iskhodnykh materialov, konkretnoj aktivnosti, tolshchiny istochnika i ego pokrytiya, plotnosti misheni i geometricheskikh faktorov, vklyuchaya vysotu, dlinu i shirinu istochnika, a takzhe razmer vozdushnogo promezhutka mezhdu istochnikom i mishen'yu. Bylo provedeno izuchenie voprosov stroitel'stva , kotorye kasalis' moshchnosti, vremeni prebyvaniya produktov v ustanovke, edinoobraziya dozy, ehffektivnosti i obshchej stoimosti. Byli razrabotany i provereny na opyte uproshchennye sposoby sooruzheniya izluchatelya. Byl razrabotan trekhrazmernyj printsip dlya primeneniya k stroitel'stvu izluchatelya tipa Monte Karlo. EHtot printsip primenyalsya v dannoj probleme s provedeniem sootvetstvuyushchikh ehksperimental'nykh izmerenij. Programma proektirovaniya izluchatelya byla rasshirena dlya vklyucheniya issledovanij mnogodiskovykh, mnogokanal'nykh sistem, a poehtomu ona vklyuchaet trekhrazmernuyu formu istochnika, a takzhe diskovye tipy izluchatelej. Potrebnosti inzhenernogo kharaktera, kasayushchiesya konvejerov dlya obrashcheniya s produktami, izuchayutsya sovmestno s proektom istochnika i vliyaniem na usloviya stroitel'stva . Podrobno izuchayutsya metody obrashcheniya s istochnikom, sistema bezopasnosti i kontrol'. Nakonets, daetsya opisanie podgotovki samogo iskhodnogo materiala, vklyuchaya izmereniya, zadelyvanie v kapsyulyu i ispytanie utechki. (author)}
place = {IAEA}
year = {1960}
month = {Jul}
}