Import Geant4 10.5.1 source tree
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//-------------------------------------------------------------
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// Documentation:
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// Is responsible for the management of all adjoint cross sections matrices, and for the computation of the total forward and adjoint cross sections.
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// Total adjoint and forward cross sections are needed to correct the weight of a particle after a tracking step or after the occurence of a reverse reaction.
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// Total adjoint and forward cross sections are needed to correct the weight of a particle after a tracking step or after the occurrence of a reverse reaction.
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// It is also used to sample an adjoint secondary from a given adjoint cross section matrix.
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//
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#ifndef G4AdjointCSManager_h
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//
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// -January 2009. L. Desorgher
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// Put a higher limit on the CS to avoid a high rate of Inverse Photo e- effect at low energy. The very high adjoint CS of the reverse
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// photo electric reaction produce a high rate of reverse photo electric reaction in the inner side of a shielding for eaxmple, the correction of this occurence
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// photo electric reaction produce a high rate of reverse photo electric reaction in the inner side of a shielding for eaxmple, the correction of this occurrence
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// by weight correction in the StepDoIt method is not statistically sufficient at small energy. The problem is partially solved by setting an higher CS limit
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// and compensating it by an extra weight correction factor. However when coupling it with other reverse processes the reverse photo-electric is still
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// the source of very occasional high weight that decrease the efficiency of the computation. A way to solve this problemn is still needed but is difficult
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