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Production of Strontium-90 Thermal Power Sources; Fabrication de sources d'energie thermique au strontium-90; Proizvodstvo istochnikov ''teplovoj ehnergii iz Sr''9''0; Preparacion de fuentes de energia termica con estroncio-90

Conference:

Abstract

One of the most attractive fields for utilization of large quantities of waste fission products is the field of direct-conversion power supplies for remote locations. Strontium-90 is being given the greatest exploitation because of its availability, nuclear properties, and the relative ease with which it can be fabricated into compact heat sources. Strontium-90 fuelled generators are being used to power automatic weather stations and navigational aids, and consideration is being given to the use of strontium-90 as a power source for space vehicles. Evaluation of several potentially useful strontium compounds led to the selection of the titanate as exhibiting overall properties most desirable for this purpose. Strontium-90, separated from crude fission product streams and purified to the requisite degree by the USAEC's Hanford Works, is shipped in the form of the carbonate to a hot cell facility operated by the Martin Company, where it is converted to titanate pellets. This process is an adaption to remote operation of conventional chemical and ceramic techniques. The pellets are encapsulated in Hastelloy C containers for use in thermoelectric power supplies. Unusual operational problems are encountered because the large quantities of strontium-90 handled (potentially millions of curies per year) represent formidable radiation and contamination  More>>
Authors:
Cochran, J. S.; Bloom, J. L.; Schneider, A. [1] 
  1. Martin Company, Nuclear Division, Baltimore 3, MD (United States)
Publication Date:
Nov 15, 1963
Product Type:
Conference
Resource Relation:
Conference: Conference on the Application of Large Radiation Sources in Industry, Salzburg (Austria), 27-31 May 1963; Other Information: 5 figs., 2 tabs., 10 refs.; Related Information: In: Industrial Uses of Large Radiation Sources. Proceedings of a Conference on the Application of Large Radiation Sources in Industry. Vol. II| 344 p.
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 07 ISOTOPES AND RADIATION SOURCES; CONTAMINATION; DECONTAMINATION; FISSION PRODUCTS; HASTELLOY C; HEAT SOURCES; HOT CELLS; NUCLEAR PROPERTIES; PELLETS; POWER SUPPLIES; SAFETY; STRONTIUM 90; STRONTIUM COMPOUNDS; TITANATES; WASTE DISPOSAL
OSTI ID:
22116355
Research Organizations:
International Atomic Energy Agency, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Other: ISSN 0074-1884; TRN: XA13R0366073010
Submitting Site:
INIS
Size:
page(s) 157-171
Announcement Date:
Jul 29, 2013

Conference:

Citation Formats

Cochran, J. S., Bloom, J. L., and Schneider, A. Production of Strontium-90 Thermal Power Sources; Fabrication de sources d'energie thermique au strontium-90; Proizvodstvo istochnikov ''teplovoj ehnergii iz Sr''9''0; Preparacion de fuentes de energia termica con estroncio-90. IAEA: N. p., 1963. Web.
Cochran, J. S., Bloom, J. L., & Schneider, A. Production of Strontium-90 Thermal Power Sources; Fabrication de sources d'energie thermique au strontium-90; Proizvodstvo istochnikov ''teplovoj ehnergii iz Sr''9''0; Preparacion de fuentes de energia termica con estroncio-90. IAEA.
Cochran, J. S., Bloom, J. L., and Schneider, A. 1963. "Production of Strontium-90 Thermal Power Sources; Fabrication de sources d'energie thermique au strontium-90; Proizvodstvo istochnikov ''teplovoj ehnergii iz Sr''9''0; Preparacion de fuentes de energia termica con estroncio-90." IAEA.
@misc{etde_22116355,
title = {Production of Strontium-90 Thermal Power Sources; Fabrication de sources d'energie thermique au strontium-90; Proizvodstvo istochnikov ''teplovoj ehnergii iz Sr''9''0; Preparacion de fuentes de energia termica con estroncio-90}
author = {Cochran, J. S., Bloom, J. L., and Schneider, A.}
abstractNote = {One of the most attractive fields for utilization of large quantities of waste fission products is the field of direct-conversion power supplies for remote locations. Strontium-90 is being given the greatest exploitation because of its availability, nuclear properties, and the relative ease with which it can be fabricated into compact heat sources. Strontium-90 fuelled generators are being used to power automatic weather stations and navigational aids, and consideration is being given to the use of strontium-90 as a power source for space vehicles. Evaluation of several potentially useful strontium compounds led to the selection of the titanate as exhibiting overall properties most desirable for this purpose. Strontium-90, separated from crude fission product streams and purified to the requisite degree by the USAEC's Hanford Works, is shipped in the form of the carbonate to a hot cell facility operated by the Martin Company, where it is converted to titanate pellets. This process is an adaption to remote operation of conventional chemical and ceramic techniques. The pellets are encapsulated in Hastelloy C containers for use in thermoelectric power supplies. Unusual operational problems are encountered because the large quantities of strontium-90 handled (potentially millions of curies per year) represent formidable radiation and contamination hazards. Details of the facility, equipment, process, and safety criteria are given. The operational experience gained during the recent processing of the first 250 000 curies of strontium-90 into fuel for a SNAP-7 generator is described. Encapsulation, calorimetry, decontamination, and waste disposal procedures are also outlined. (author) [French] L'une des utilisations les plus interessantes des produits de fission en grande quantite consiste a les employer comme sources d'energie par combustion directe pour des installations geographiquement isolees. C'est le strontium-90 qui est l e plus utilise parce qu'on en dispose en grandes quantites et aussi en raison de ses proprietes nucleaires et du fait qu'il est relativement facile de le transformer en sources de chaleur compactes. Des generateurs au strontium-90 servent a alimenter des stations meteorologiques automatiques et des engins de balisage, et on envisage meme d'utiliser cette substance comme source d'energie pour les vehicules spatiaux. Apres avoir examine les possibilites de plusieurs composes du strontium, on a choisi le titanate, qui possede les proprietes generales correspondant le mieux aux objectifs vises. Le strontium-90 est separe de l'effluent brut, puis purifie au degre voulu dans les usines de Hanford de la CEA-EU. On l'expedie ensuite, sous forme de carbonate, jusqu'a l'installation de traitement exploitee par la societe Martin, ou il est transforme en pastilles de titanate. Le procede s'inspire de l'application telecommandee de certaines techniques utilisees pour des produits chimiques et ceramiques classiques. Les pastilles sont mises dans des capsules d' Hastelloy C destinees aux generateurs en energie thermoelectriques. On se heurte a des problemes inaccoutumes, parce que les grandes quantites de strontium-90 a manutentionner representent une quantite enorme de radioactivite (plusieurs millions de curies par an), sans parler des risques de contamination. L'auteur decrit l'installation, le materiel et l e procede et donne des criteres de securite. Il expose l'experience pratique acquise au cours de la transformation d'une premiere quantite de 250 000 s de strontium-90 en combustible pour un generateur SNAP-7. Il donne egalement des indications succinctes sur la mise en capsules, la calorimetrie, la decontamination, et l'evacuation des dechets. (author) [Spanish] Una de las aplicaciones mas interesantes de grandes cantidades de productos de desecho de la fision consiste en emplearlos como fuentes de energia por conversion directa, destinados a lugares geograficamente aislados. Se emplea principalmente el estroncio-90 debido a su abundancia, a sus propiedades nucleares y a la relativa facilidad con que permite construir generadores compactos de calor. Se emplean ya generadores a base de estroncio-90 para suministrar energia a centrales meteorologicas automaticas y aparatos auxiliares para la navegacion, y se esta estudiando la posibilidad de emplear este isotopo como fuente de energia para vehiculos espaciales. Se estudiaron diversos compuestos de estroncio que podian servir para este fin y se eligio el titanato porque reune las propiedades mas adecuadas. El estronico-90 se separa del resto d e los productos brutos de fision y se purifica hasta el grado requerido en las instalaciones de Hanford de la Comision de Energia Atomica de los Estados Unidos. Seguidamente se introduce en forma de carbonato en la ''celda caliente'' de la Martin Company, donde se transforma en pastilla, de titanato. Se sigue e l mismo proceso que en las tecnicas quimicas y ceramicas, pero adaptado para la manipulacion a distancia. Seguidamente las pastillas se encapsulan en recipientes de ''Hastelloy C'' para emplearlas en los generadores de energia termoelectrica. Estos procesos presentan problemas poco corrientes debido a que las grandes cantidades de estroncio-90 que se manejan (que podrian alcanzar millones de curies por ano) pueden originar gravisimos riegos radiologicos y de contaminacion. La memoria describe la instalacion, el equipo, el proceso y los criterios de seguridad. Describe tambien la experiencia adquirida recientemente al elaborar el combustilble para el generador SNAP-7 con los primeros 250 000 s de estroncio-90. Proporciona algunos detalles sobre los procedimientos de encapsulado, calorimetros, de descontaminacion y de evacuacion de desechos. (author) [Russian] Odnoj iz naibolee interesnykh oblastej primeneniya ogromnogo kolichestva radioaktivnykh otkhodov yavlyaetsya ispol'zovanie ikh v ustanovkakh s neposredstvennym preobrazovaniem ehnergii, prednaznachennykh dlya raboty v otdalennykh rajonakh. V ehtom smysle Sr{sup 90} priobretaet bol'shoe znachenie iz-za ego shirokoj dostupnosti, aktivnosti i toj sravnitel'noj legkosti, s kotoroj ego mozhno prevrashchat' v kompaktnye istochniki tepla. Generatory, rabotayushchie na Sr{sup 90} sluzhat v kachestve istochnikov pitaniya avtomaticheskikh meteorologicheskikh i navigatsionnykh stantsij; rassmatrivaetsya vozmozhnost' primeneniya Sr{sup 90} v kachestve istochnika ehnergii dlya dvigatelej kosmicheskikh korablej. Pri sravnitel'noj otsenke ryada strontsievykh soedinenij okazalos', chto naibolee tselesoobrazno ispol'zovat' titanat, tak kak on obladaet naibolee tsennymi svojstvami. Sr{sup 90}, otdelennyj ot drugikh produktov deleniya, ochishchaetsya do trebuemoj stepeni chistoty na predpriyatii Komissii po atomnoj ehnergii SSHA v Khehnforde i trasportiruetsya v vide karbonata v ''gorya- chuyu'' kameru(firmy ''Martin''), gde prevrashchaetsya v granulirovannyj titanat. V ehtom protsesse ispol'zuetsya distantsionnoe upravlenie, analogichnoe primenyaemomu v obychnom khimicheskom i keramicheskom proizvodstve. Granuly, zaklyuchennye v kapsuly, pomeshchayutsya v kontejnery tipa ''Khastellou C'' dlya primeneniya v ehnergeticheskikh ustanovkakh s termoehlektricheskim preobrazovaniem ehnergii. Zdes' prikhoditsya stalkivat'sya s neobychnymi ehkspluatatsionnymi problemami, tak kak bol'shie kolichestva obrabatyvaemogo Sr{sup 90} (milliony kyuri v god) obladayut strashnoj radioaktivnost'yu i sozdayut opasnost' zarazheniya. Opisano ustrojstvo prisposoblenij, oborudovaniya, kharakterizuyutsya tekhnologiya i tekhnika bezopasnosti. Opisyvayutsya dannye opyta, priobretennogo vo vremya nedavnej pererabotki pervykh 250 000 kyuri Sr{sup 90} v toplivo dlya generatora SNAP-7 (yadernaya batareya). Privodyatsya takzhe dannye po germetizatsii granul v kontejnerakh, po kalorimetrii, dezaktivatsii i metodike udaleniya otkhodov. (author)}
place = {IAEA}
year = {1963}
month = {Nov}
}