Published Online: 1 March 2012
Page Count: 7
(Received 8 June 2011; accepted 28 November 2011)
The BR1 research reactor at SCK•CEN is characterized by a wide variety of irradiation possibilities, a large reactor core, and strong flexibility in its operation. A full MCNP model of BR1 has been recently developed in order to complement the results that can be obtained from activation dosimetry. After a general presentation of the reactor, this paper pays particular attention to its standard 235U(n,f) fast neutron field MARK III. This irradiation field is a useful tool for integral measurements and for detector calibrations. With the support of MCNP calculations, irradiations in MARK III can be directly referred to the pure 235U(n,f) fast neutron spectrum.
Paper ID: JAI104024