|Message: Bug in G4OpRayleigh constructor||Not Logged In (login)|
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I don't know whether this is a bug or a feature, but whenever you have a material named "Water" in your simulation, G4OpRayleigh constructor attempts to automatically compute Rayleigh scattering length for 10-degrees water and assign it to that material. Which causes the program to crash if "Water" does not have a material table associated with it, or if the material table does not have RINDEX property vector. I don't think this is documented anywhere - I was surprised when the simulation suddenly started to give me a segmentation fault after I changed the material name from "water" to "Water". I think the code should at least check for the existence of the table before attempting to modify it - and warn the user before overwriting the properties he assigned to the material.
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