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Nuclear Reactor RA Safety Report, Vol. 1, Introduction; Izvestaj o sigurnosti nuklearnog reaktora RA, Knjiga 1, Uvod

Abstract

Based on the agreement between governments of Socialist Federal Republic of Yugoslavia and USSR of January 28 1956, a contract was signed about construction of RA research reactor in the Boris Kidric Institute of nuclear sciences. Building of the RA reactor started in 1956, and has reached criticality in 1959. Since then it has been in almost permanent operation, except for five longer shutdown periods: in 1963 because of heavy water and primary coolant system contamination with cobalt; in 1970 because of transporting the heavy water to France for isotopic regeneration; in 1979/1980 and 1983 because of aluminium oxyhydrate deposition on the fuel element cladding in reactor active region; in 1985/1986 because of ventilation system reconstruction and construction of emergency core cooling system. RA reactor is a heavy water cooled and heavy water moderated research reactor. Since the beginning of its operation, 2% enriched metal uranium fuel was used. From 1976, 80% enriched uranium oxide fuel elements were used partially in some core regions and since 1981 the complete core was filled with this highly enriched fuel. RA reactor was designed to operate under normal conditions at 6.5 MW power and at 10 MW power under forced regime. As a  More>>
Authors:
"NONE"
Publication Date:
Nov 01, 1986
Product Type:
Technical Report
Report Number:
RA-103/R1/P1/02
Resource Relation:
Other Information: 20 refs, 16 figs, 7 tabs
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; HEAVY WATER; ISOTOPE PRODUCTION; R-A REACTOR; REACTOR COOLING SYSTEMS; REACTOR OPERATION; REACTOR PHYSICS; REACTOR SAFETY; REACTOR SHUTDOWN; REACTOR START-UP; VENTILATION SYSTEMS
OSTI ID:
20690379
Research Organizations:
Institute of Nuclear Sciences Boris Kidric, Vinca, Beograd (Serbia and Montenegro)
Country of Origin:
Serbia and Montenegro
Language:
English
Other Identifying Numbers:
TRN: CS05RA002007185
Availability:
Available from INIS in electronic form; Also available from the Institute of nuclear sciences Vinca
Submitting Site:
INIS
Size:
85 pages
Announcement Date:
Mar 10, 2006

Citation Formats

Nuclear Reactor RA Safety Report, Vol. 1, Introduction; Izvestaj o sigurnosti nuklearnog reaktora RA, Knjiga 1, Uvod. Serbia and Montenegro: N. p., 1986. Web.
Nuclear Reactor RA Safety Report, Vol. 1, Introduction; Izvestaj o sigurnosti nuklearnog reaktora RA, Knjiga 1, Uvod. Serbia and Montenegro.
1986. "Nuclear Reactor RA Safety Report, Vol. 1, Introduction; Izvestaj o sigurnosti nuklearnog reaktora RA, Knjiga 1, Uvod." Serbia and Montenegro.
@misc{etde_20690379,
title = {Nuclear Reactor RA Safety Report, Vol. 1, Introduction; Izvestaj o sigurnosti nuklearnog reaktora RA, Knjiga 1, Uvod}
abstractNote = {Based on the agreement between governments of Socialist Federal Republic of Yugoslavia and USSR of January 28 1956, a contract was signed about construction of RA research reactor in the Boris Kidric Institute of nuclear sciences. Building of the RA reactor started in 1956, and has reached criticality in 1959. Since then it has been in almost permanent operation, except for five longer shutdown periods: in 1963 because of heavy water and primary coolant system contamination with cobalt; in 1970 because of transporting the heavy water to France for isotopic regeneration; in 1979/1980 and 1983 because of aluminium oxyhydrate deposition on the fuel element cladding in reactor active region; in 1985/1986 because of ventilation system reconstruction and construction of emergency core cooling system. RA reactor is a heavy water cooled and heavy water moderated research reactor. Since the beginning of its operation, 2% enriched metal uranium fuel was used. From 1976, 80% enriched uranium oxide fuel elements were used partially in some core regions and since 1981 the complete core was filled with this highly enriched fuel. RA reactor was designed to operate under normal conditions at 6.5 MW power and at 10 MW power under forced regime. As a powerful neutron source the reactor was meant to be used for research in the field of reactor and neutron physics, solid state physics, radiation chemistry, biology and radioactive isotopes production. RA reactor was build by Yugoslav companies based on USSR basic design project. Main components of the systems were produced in USSR. [Serbo-Croat] Na osnovu Sporazuma izmedju vlada SFRJ i SSSR od 28. januara 1956. godine, sklopljen je ugovor o izgradnji istrazivackog reaktora RA u Institutu za nuklearne nauke Boris Kidric u Vinci. Reaktor RA je poceo da se gradi 1956. godine, a kriticnost je postigao 1959. godine. Od tada je takoreci neprekidno bio u radu, izuzev u pet slucajeva duzeg stajanja: 1963. godine - zbog kontaminacije teske vode i citavog primarnog kola reaktora kobaltom; 1970. godine - zbog slanja teske vode u Francusku na izotopsku regeneraciju; 1979/80. i 1983. godine - zbog talozenja aluminijum oksihidrata na kosuljicama gorivnih elemenata u aktivnoj zoni reaktora i 1985/86. godine - zbog rekonstrukcije sistema ventilacije i izgradnje sistema za hladjenje jezgra reaktora u nuzdi. RA je tip teskovodnog istrazivackog reaktora sa sudom. Kod njega teska voda sluzi i kao moderator neutrona i kao primarni hladilac. Od pocetka rada, na reaktoru je korisceno 2% obogaceno uransko metalno gorivo. Od 1976. godine, na reaktoru je pocelo da se delimicno koristi 80% obogaceno oksidno uransko gorivo, da bi se od 1981. godine, na reaktoru koristilo isklucivo ovo visokoobogaceno gorivo. Reaktor RA je tako projektovan da mu snaga u normalnom radnom rezimu bude 6,5 MW, a u forsiranom 10 MW. Kao izvor neutrona, reaktor je namenjen za istrazivanja u oblasti reaktorske i neutronske fizike, fizike cvrstog stanja, radijacione hemije, biologije, a narocito za proizvodnju readioaktivnih izotopa. Reaktor RA su izgradila jugoslovenska gradjevinska i montazna preduzeca, na osnovu sovjetskog projekta. U SSSR su fabrikovane glavne komponente njegovih sistema i uredjaja.}
place = {Serbia and Montenegro}
year = {1986}
month = {Nov}
}