Re: [fluka-discuss]: Radiative BhaBha's with a Positron Beam

From: Paola Sala <>
Date: Sat, 30 Mar 2019 14:52:11 +0100

Dera Lewis,
no, FLUKA does not incorporate radiative Bhabha,
it does incorporate "standard" Bhabha positron-electron scattering.
ay I ask you some more detail on your problem? Indeed, one would expect a
very small energy loss in 0.01RL of Beryllium.

From: Keller, Lewis P. <>
Date: Fri, 22 Mar 2019 12:38:08 +0000
I am simulating a 45 GeV positron beam hitting a thin Be target, approx.
0.01 RL I’m plotting the e+ track-lengh as function of energy using
USRTRACK. I find that the e+ beam energy quickly degrades which shows up
in the track-length quickly shifting toward lower energy e+. Since
bremsstrahlung energy loss is negligible for this thin radiator, my
question is does FLUKA incorporate radiative bhabha scattering from a
positron interacting with an atomic electron to cause the e+ to rapidly
lose energy?

Lewis Keller

Paola Sala
INFN Milano
tel. Milano +39-0250317374
tel. CERN +41-227679148

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Received on Sat Mar 30 2019 - 16:01:16 CET

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