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Opened by Shikhar Kumar@shikhark
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Inconsistency in photon reaction rate tally with analog estimator

Created by: liangjg

The tally results on photon reaction rates using analog estimator is inconsistent with the results using tracklength estimator. Here is an example, a fixed source photon simulaiton on an infinite uniform model , tally 1 is using tracklength estimator while tally 2 is using analog estimator.

 ============================>     TALLY 1     <============================

 Particle: photon
   Total Material
     Flux                                 226.328 +/- 0.130995
     Total Reaction Rate                  59.6371 +/- 0.0259912
 ============================>     TALLY 2     <============================

 Particle: photon
   Total Material
     Flux                                 203.102 +/- 0.0886762
     Total Reaction Rate                  23.5585 +/- 0.0133504