Abstract
In the heavy-monatomic-gas approximation the neutron spectrum in an infinite nonabsorbing medium filled with a mixture of gases which do not interact with each other and which have been heated to different temperatures is a Maxwell distribution with a temperature averaged over the different gases with a weight ξσs, where ξ is the mean logarithmic energy loss and σs is the macroscopic scattering cross section. It is found that even for light scattering nuclei where the temperature of one gas is several times the temperature of the other, the neutron spectrum is also Maxwellian, with an accuracy sufficient for approximate calculations.
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The author thanks M. V. Maslennikov and L. V. Maiorov for their useful comments and E. S. Kuznetsov for his constant interest in the work.
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Moskalev, O.B. The neutron spectrum in a mixture of two non-interacting gases heated to different temperatures. The Soviet Journal of Atomic Energy 12, 295–299 (1962). https://doi.org/10.1007/BF01683240
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DOI: https://doi.org/10.1007/BF01683240