Recent content by nrat320

I am trying to create a FMESH tally over a region that's (x: -15um to 15um, y:-15um to 15um, z:10um to 60um). My input code is below: FC4 FMESH tally energy deposition FMESH4:E GEOM=xyz ORIGIN= -0.0015 -0.0015 0.0010 & IMESH=0.0015 IINTS=10 & JMESH=0.0015 JINTS=1 &...

I thought the 12eV cutoff was for electrons. But I think you are right that the physics for low energy wavelength is not well structured in MCNP. Which is disappointing since I wanted to observe photon production in different scintillator/phosphorous materials. thanks for your insight!

At some point, I was just playing around with the weight fraction to see it it had effect. But it did not. I did try fractions that added up to 1. but same result.

thanks for the the reply! I have used the commands below to indicated to MCNP I want to produce 1eV photons as well. cut:P j 1.0e-6 $1eV I have also narrow down my resolution of the tally bins the the range below. e26 0 198i .000010 In have read in the report "LA-UR-12-21068" that is...

I am a new user of MCNP and I am trying to generate photons in ZnS:Ag through electrons as my source particle. My simulation as it is now creates photons however they are not right. For example ZnS:Ag should create a lot of photons with energy of around 3.1eV. However I see a spike around 4.8eV...