Add `<prop>_stddev` siblings to capture vendor spread. Example: LYSO light yield Saint-Gobain 33k vs SICCAS 30k photons/MeV. Lets simulations propagate uncertainty rather than treating values as exact. Optional field — absence ⇒ unknown.
Add
<prop>_stddevsiblings to capture vendor spread. Example: LYSO light yield Saint-Gobain 33k vs SICCAS 30k photons/MeV. Lets simulations propagate uncertainty rather than treating values as exact. Optional field — absence ⇒ unknown.