The two possible ways of neutron density modulation (neutron waves) in a nuclear reactor are compared. One method is reactivity modulation by modulation of the amount of poison seen by the core, and the second is modulation of thermalized neutrons from a 252Cf neutron source. The design of the two oscillators in the core tank is described and results are presented. The analyzed data are compared with two group-time dependent calculations. It is concluded that the two methods yield near-identical results, except in the region of the oscillator itself where the modulated poison oscillator decreases the number of neutrons, while the modulated source oscillator increases the number of neutrons.
|Number of pages||11|
|Journal||Nuclear Instruments and Methods|
|State||Published - 15 Jun 1972|
ASJC Scopus subject areas
- Medicine (all)