Properties of the Feynman-alpha method applied to accelerator-driven subcritical systems.
A Monte Carlo study of the Feynman-method with a simple code simulating the multiplication chain, confined to pertinent time-dependent phenomena has been done. The significance of its key parameters (detector efficiency and dead time, k-source and spallation neutrons multiplicities, required number of fissions etc.) has been discussed. It has been demonstrated that this method can be insensitive to properties of the zones surrounding the core, whereas is strongly affected by the detector dead time. In turn, the influence of harmonics in the neutron field and of the dispersion of spallation neutrons has proven much less pronounced.
Taczanowski
S
S
Faculty of Physics and Nuclear Techniques, AGH University of Science and Technology, Cracow 30 059, Poland. taczanowski@novell.ftj.agh.edu.pl
Domanska
G
G
Kopec
M
M
Janczyszyn
J
J
D000465:Algorithms; D000512:Alpha Particles; D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007220:Industrial Waste / Q000517:prevention & control; D008962:Models, Theoretical; D009502:Neutrons; D010315:Particle Accelerators / Q000295:instrumentation*; D011829:Radiation Dosage; D011835:Radiation Protection / Q000295:instrumentation* / Q000379:methods; D011874:Radiometry / Q000379:methods*; D012037:Refuse Disposal / Q000295:instrumentation* / Q000379:methods
D007220:Industrial Waste