BNCT facility in the Institute of Atomic Energy in Otwock-Swierk is under construction at the horizontal channel H2 of the research reactor MARIA. Measurements of the neutron energy spectrum performed at the front of the H2 experimental channel, have shown that flux of epithermal neutrons (above 10 keV) at the BNCT irradiation port was below 109 n cm-2 s-1 i.e. it was too low to be directly used for the BNCT treatment. Therefore, a fission converter will be placed between the reactor core and the periphery of the graphite reflector of MARIA reactor. The uranium converter will be powered by the densely packed EK-10 fuel elements with 10% enrichment. Preliminary calculations have shown that the total neutron flux in the converter will be about 1013 n cm-2 s-1 and flux of epithermal neutrons at the entrance to the filter/moderator of the beam will be about 2·1013 n cm-2 s-1.
Golnik N, Pytel K, Dabkowski L. A concept and state of the art. of irradiation facilities for NCT at research reactor MARIA in Poland. In: Sauerwein W, Moss R, Witting A, editors. Research and Development in Neutron Capture Therapy. Monduzzi Editore; 2002. p. 191-195.
Golnik N, Pytel K. Irradiation facilities for BNCT at research reactor MARIA in Poland. Pol J Med Phys Eng. 2006; 12(3): 143-153.
Krzysztoszek G, Golab A, Jaroszewicz J. Operation of the MARIA research reactor. Annual Report of the Institute of Atomic Energy, Swierk. Poland: 2005. p. 15-19.
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