Modulation of the neutron field in the multiplying condensed matter and coolant.

Autor: Vodyanitskii, A. A., Slyusarenko, Yu. V.
Předmět:
Zdroj: AIP Conference Proceedings; 12/14/2009, Vol. 1198 Issue 1, p196-203, 8p
Abstrakt: The spatial damping of acoustic, neutron and thermal branches of oscillations are found in neutron multiplying medium with coolant. All three branches give additive contribution to the neutron density oscillations. However, their wave numbers and coefficients of spatial damping (at the same frequency) differ greatly from the sound with its high phase velocity and small attenuation to the neutron wave with the damping length, which is comparable with its wavelength. A spatial growth of neutron density oscillations is found in the case of large frequency of neutron capture and weak coupling of neutron density and temperature branches of oscillations. This fact is of importance for the noise diagnostics of the multiplying medium with coolant. The results can be applied to the development of the methods of noise diagnostics of the in core reactor equipment. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index