|Message: G4VDiscreteProcess has problems with neutrons and Chlorine||Not Logged In (login)|
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Hi, We have a material called "PVC". It is a plastic type material containing Chlorine. It is actually a source frame holding an Am-Be source. So, a lot of neutrons hit this material. The Chlorine element is described in our code as an element with 2 isotopes Cl35 and Cl37. Actually, when a neutron hits the PVC material, there are a lot of messages such as the following:
G4VDiscreteProcess::PostStepGetPhysicalInteractionLength [ NeutronInelastic] Particle type - neutron mass: 0.939566[GeV] charge: 0[e] Direction x: 0.281162, y: 0.958867, z: -0.0390194 Total Momentum = 0.0300712[GeV] Momentum: 0.00845488[GeV], y: 0.0288343[GeV], z: -0.00117336[GeV] Total Energy = 0.940047[GeV] Kinetic Energy = 0.000481098[GeV] ProperTime = 0[ns] in Material PVC MeanFreePath = 0[cm]
It is always with PVC and NeutronInelastic process. When Chlorine element is removed and for instance replaced by Sulfur, there are no messages anymore. I use LHEP_PRECO_HP with G4.5.2 p02 with gcc 3.2 Linux Mandrake9.0. Any idea why such a behaviour ??? Thanks,
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