Search found 114 matches

by jesse.johns
Wed Aug 26, 2015 6:53 pm
Forum: Bugs, problems, questions & feeback
Topic: BUMAT outputting scattering cross-section
Replies: 2
Views: 3824

BUMAT outputting scattering cross-section

Hello, The output from *.bumat* contains cross-sections with the scattering descriptor (.03s, for example). This prevents use of these outputs without having to modify them manually. This was a problem with Serpent 1, which was corrected in its latest update, but I guess Serpent 2 didn't get a simil...
by jesse.johns
Thu Aug 13, 2015 9:53 pm
Forum: Bugs, problems, questions & feeback
Topic: Fuel Acquiring Thermal Scattering Data
Replies: 3
Views: 3583

Re: Fuel Acquiring Thermal Scattering Data

Actually, my apologies, I get an error with the low atom densities. I just checked my log files... It appears that when small atom densities are included: 1003.03c 1e-6 4009.03c 1e-6 92235.03c 3.93778E-02 I will get the following error: Fatal error in function BurnMatCompositions: adens1 > 0 It seem...
by jesse.johns
Thu Aug 13, 2015 9:43 pm
Forum: Bugs, problems, questions & feeback
Topic: Fuel Acquiring Thermal Scattering Data
Replies: 3
Views: 3583

Re: Fuel Acquiring Thermal Scattering Data

Hello,

Even when I put zero-densities, or very small densities, the materials still acquire the thermal scattering data.

I am using Serpent 2.1.24.

Jesse
by jesse.johns
Thu Aug 06, 2015 7:52 pm
Forum: Bugs, problems, questions & feeback
Topic: Fuel Acquiring Thermal Scattering Data
Replies: 3
Views: 3583

Fuel Acquiring Thermal Scattering Data

Hello, When I am performing a depletion study, in the *.out file, there is a notation of interest: Material "fuel": - Material is included in majorant - Material is included in geometry ..... [b] - 2 nuclides associated with S(a,b) data[/b] - 19.54 Mb of memory allocated for data In the original mat...
by jesse.johns
Sun Aug 02, 2015 7:48 pm
Forum: Input
Topic: Detector time binning
Replies: 8
Views: 3717

Re: Detector time binning

Hello, I am wondering if there's a simple was to sample the entire production and loss rate, or if I need to set up a detector for each reaction and a surface for leakage? I'm currently doing this, but it would be splendid if the _res.m indexed for time step for things like TOT_FISSRATE. Thanks, Jesse
by jesse.johns
Sun Aug 02, 2015 7:37 pm
Forum: Input
Topic: Dynamic simulation mode
Replies: 3
Views: 3781

Re: Dynamic simulation mode

Hello, It appears that the boundary conditions set up by something like set usym 0 3 2 0 0 0 45 for a dynamic simulation are ignored. If I run a criticality case with black and periodic boundary conditions, I get k = 0.54, 0.99... respectively. When I used the usym to set up a similar case but with ...
by jesse.johns
Sat Aug 01, 2015 6:49 am
Forum: Bugs, problems, questions & feeback
Topic: Depletion Output for Multiple Temperatures
Replies: 1
Views: 3531

Depletion Output for Multiple Temperatures

Hello all: There is an error in the depletion output in cases where there are multiple materials with different temperatures. The result is that you get a number of repeating isotopes: ZAI = [ 10010 10010 10020 10020 10030 10030 20030 20030 20040 20040 60000 60000 MAT_1_ADENS = [ 0.00000E+00 6.62270...
by jesse.johns
Sat Aug 01, 2015 12:22 am
Forum: Bugs, problems, questions & feeback
Topic: Normalization in detector meshes
Replies: 1
Views: 3590

Re: Normalization in detector meshes

They are all normalized individually.
by jesse.johns
Thu Jul 30, 2015 9:52 pm
Forum: Users
Topic: Control Rod Banks
Replies: 3
Views: 2615

Re: Control Rod Banks

This works perfectly!
by jesse.johns
Thu Jul 30, 2015 5:33 pm
Forum: Users
Topic: Control Rod Banks
Replies: 3
Views: 2615

Re: Control Rod Banks

Thank you for the advice. I had gotten the transformations to work previous, which is why I elected on multiple lattices; however, I didn't think to embed a lattice within a lattice - the relative geometries seem a bit complex. I'm going to give that a shot today.