Search found 39 matches

by keckler
Sat Dec 21, 2019 11:09 pm
Forum: Users
Topic: Individual isotope detector
Replies: 6
Views: 1590

Re: Individual isotope detector

I am wondering, is there a reason why there cannot be a detector option similar to the 'dm' or 'dc' options which enables the user to select a particular isotope? For instance, as pointed out in the previous posts, to calculate the reaction rate in Pu239 within a fuel material, a new material needs ...
by keckler
Wed Jul 31, 2019 2:52 am
Forum: Users
Topic: Energy-depentdent gamma source from decay calculations
Replies: 8
Views: 550

Re: Energy-depentdent gamma source from decay calculations

I have checked, and the volumes are correct in all of the calculations that I performed. In all of my cases, depletion steps are given in units of days, not burnup. However, for the 2D case, I use power density for the normalization in the criticality calculation. I suppose this implies some sort of...
by keckler
Mon Jul 29, 2019 8:39 pm
Forum: Users
Topic: Energy-depentdent gamma source from decay calculations
Replies: 8
Views: 550

Re: Energy-depentdent gamma source from decay calculations

To back this up a little bit, I did some messing around with the material volumes in my infinite pebble lattice model to try to confirm this. If I change the fuel volume in the decay source calc using the 'vol' option in the material definition, the tally results change, as expected since the streng...
by keckler
Mon Jul 29, 2019 7:33 pm
Forum: Users
Topic: Energy-depentdent gamma source from decay calculations
Replies: 8
Views: 550

Re: Energy-depentdent gamma source from decay calculations

I have checked, and Serpent uses the same volumes between both cases. In fact the geometry is unchanged between the criticality and the fixed source calculations, so it would seem strange if Serpent could calculate the volumes in one but not the other. I suppose my other line of thinking is that the...
by keckler
Sat Jul 27, 2019 2:07 am
Forum: Users
Topic: Energy-depentdent gamma source from decay calculations
Replies: 8
Views: 550

Re: Energy-depentdent gamma source from decay calculations

Hello, I have been using this function for a few different purposes recently, and I think I may have discovered a bug. Your opinion on this would be much appreciated. I have been working with two different cases: one that is 2D (an infinitely tall fuel bundle that is repeated in a lattice) and one t...
by keckler
Thu Jul 04, 2019 7:13 pm
Forum: Users
Topic: Energy-depentdent gamma source from decay calculations
Replies: 8
Views: 550

Re: Energy-depentdent gamma source from decay calculations

That is definitely exactly what I mean. Thanks for pointing this out. Makes my life very easy!
by keckler
Tue Jul 02, 2019 10:57 pm
Forum: Users
Topic: Energy-depentdent gamma source from decay calculations
Replies: 8
Views: 550

Energy-depentdent gamma source from decay calculations

Hello, In Serpent, I have a core which has been burned up for some amount of time, having built up a significant inventory of fission products. I am wanting to extract from this fission product inventory the gamma activity as a function of energy within each material. Ideally, I would like to be abl...
by keckler
Tue Jul 02, 2019 7:56 pm
Forum: Users
Topic: Where to get KERMA data
Replies: 15
Views: 993

Re: Where to get KERMA data

Sounds good. As always, thanks for the reply.
by keckler
Sat Jun 29, 2019 12:01 am
Forum: Users
Topic: Where to get KERMA data
Replies: 15
Views: 993

Re: Where to get KERMA data

Thank you very much for the data! Using this, at least the simulation runs now with 'set edepmode 3'. On a related note, when using energy deposition mode 3 in conjunction with a dr -80 detector, what are the four reaction bins that I get in the *_det.m file for that detector? The first one is clear...
by keckler
Wed Jun 26, 2019 12:53 am
Forum: Users
Topic: Where to get KERMA data
Replies: 15
Views: 993

Where to get KERMA data

Hello, I am wanting to utilize the new energy deposition capabilities in v2.1.31 (set edepmode card). But I guess that Serpent doesn't come with the necessary KERMA coefficients that are needed to perform these calculation. My first question -- will future releases of the code come with the necessar...