On the slowing down of charged particles in a binary stochastic mixture - Archive ouverte HAL Access content directly
Journal Articles Kinetic and Related Models Year : 2008

## On the slowing down of charged particles in a binary stochastic mixture

Jean-François Clouet
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François Golse
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• PersonId : 838357
Remi Sentis
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• PersonId : 924099
Marjolaine Puel
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• PersonId : 911441

#### Abstract

A kinetic equation is addressed for the straight line slowing-down of charged particles, the geometrical domain consists of randomly distributed spherical grains of dense material imbedded in a light material. The dense material is assumed to be a Boolean medium (the sphere centers are sampled according to a Poisson random field). We focus on the fraction of particles $P$ which stop in the light medium. After setting some properties of the Boolean medium, we perform an asymptotic analysis in two extreme cases corresponding to grain radius very small and very large with respect to the stopping distance of the dense material. A fitted analytic formula is proposed for the quantity P and results of numerical simulations are presented in order to validate the proposed formula.

### Dates and versions

hal-00767606 , version 1 (20-12-2012)

### Identifiers

• HAL Id : hal-00767606 , version 1
• DOI :

### Cite

Jean-François Clouet, François Golse, Remi Sentis, Marjolaine Puel. On the slowing down of charged particles in a binary stochastic mixture. Kinetic and Related Models , 2008, 1 (3), pp.387-404. ⟨10.3934/krm.2008.1.387⟩. ⟨hal-00767606⟩

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