[fluka-discuss]: Gas ionization by 400 GeV proton beam

From: Silvia Cipiccia <silvia.cipiccia_at_strath.ac.uk>
Date: Thu, 17 Apr 2014 07:07:09 +0000

Dear FLUKA experts,

I'm trying to estimate the ionization produced by 400 GeV proton beam in a low density (1.4e-7 g/cm^3) rubidium vapour cell 10 m long.
What I have obtained is an energy loss by ionization of the order of 2e-7 GeV per proton in 10m which is in good agreement with what I obtain from analytical calculations using Bethe Formula.
I would like at this point to do a further step to estimate the number of electrons that are freed. As a first estimation I could assume that all the energy deposited as ionization goes to free the outer electrons (~ 4eV). However, I'm not sure up to which extent this is correct. Is there any feature in FLUKA which can help me in this estimation, or do you have any suggestion of some software/tool that I could use?

Many thanks

Silvia Cipiccia

6.06 Colville Building
Physics Department
Strathclyde University
Received on Thu Apr 17 2014 - 10:29:09 CEST

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