Reactor TRIGA
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History

Past members of the TRIGA team
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Prof. dr. Milan Čopič (right), Reactor Division head and Spiritus Agens of TRIGA reactor project, in conversation with dr. Helmuth Boeck, head of Vienna TRIGA reactor.
First criticality 31 May 1966. Prof. dr. Milan Osredkar (IJS director) toasting with dr. W. Whittemore of GA. Behind them dr. Udovič (bottle in hand) and dr. Natan Bernot (clapping).
First criticality. Ing. Zdravko Gabrovšek sitting between Osredkar and Whittemore. To their right: dr. Janez Sušnik and dr. Viktor Dimic. Behind Gabrovšek stand Jovanovič and Mrčun.
Prof. dr. Gvido Pregl (left) and dr. Viktor Dimic in front of the fuel shipment convoy in 1983.


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Dr. Dimic and Cenka Kovačič at the reactor control panel.
Janez Kušar fixing the roof after a heavy storm.
Dr. Peter Kunič and dr. Viktor Dimic working at the time-of-flight neutron spectrometer.


J. Stefan Institute before the reactor was constructed - photographs from the Institute 1960 annual report:
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Aerial view of the Institute buildings at Jamova.
Main Institute building at Jamova.

 Betatron.

 Van de Graff accelerator.

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Neutron generator.
Cobalt source.


Reactor construction
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Reactor building mock-up, designed by architect Jugovec.

Construction.

Laboratory building foundation.
Upps, not TRIGA. but NPP Krško foundation.
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Almost finished.




Preparing for reactor tank instalation.




Pouring concrete into the reactor shield body.



View of the reactor centre soon after construction with Kamnik Alps in the background. Note: the axis of the entrance path is aligned with the Kamniško sedlo pass.


Experimental equipment and facilities designed at reactor:
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Neutron difractometer.

Cold neutron source.

Irradiation rotary specimen rack "Lazy Suzan", fabricated at JSI.
Irradiation rotary specimen rack "Lazy Suzan", fabricated at JSI.
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Temporary central storage for low and intermediate radioactive waste from research institutes, hospitals and industry.

Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia, Phone: (01) 477 39 00, Fax: (01) 251 93 85
info@ijs.si