Search found 48 matches

by Riku Tuominen
Tue Jun 02, 2020 10:27 am
Forum: Users
Topic: Large volume of water
Replies: 6
Views: 493

Re: Large volume of water

Hi! In general you should not trust that the code calculates the volumes correctly. You can calculate and define the volumes yourself or use the Monte Carlo volume-checker routine ( set mcvol card or checkvolumes command line option ). More information on defining the volumes is available here . Inc...
by Riku Tuominen
Mon May 25, 2020 3:13 pm
Forum: Users
Topic: Thermal Scattering Data for Molybdenum
Replies: 3
Views: 374

Re: Thermal Scattering Data for Molybdenum

Hi! This is not very helpful for you, but I haven't seen an evaluation for molybdenum in either JEFF or ENDF/B. I don't know what's available in the thermal scattering libraries of MCNP6 but you could check that since those should also work with Serpent.
by Riku Tuominen
Thu May 14, 2020 10:07 am
Forum: Users
Topic: Outside cell
Replies: 2
Views: 322

Re: Outside cell

Hi! When you list the surfaces in cell card without operator identifiers, you define the cell as an intersection of the regions defined by the surfaces. So in your example cell 1001 actually has a volume of zero. Unions can not be used for outside cells so in your case you could define the outside r...
by Riku Tuominen
Wed May 13, 2020 10:21 am
Forum: Bugs, problems, questions & feeback
Topic: IFC material density
Replies: 9
Views: 651

Re: IFC material density

Okay. The majorant density is taken as the maximum of the density in the mat card and the densities given in the ifc file. This might explain what you are seeing. However, the results (within statistics) should not change and I think you also confirmed this.
by Riku Tuominen
Tue May 12, 2020 6:32 pm
Forum: Bugs, problems, questions & feeback
Topic: IFC material density
Replies: 9
Views: 651

Re: IFC material density

Okay. I'm happy to hear that you got your calculations running! What do you mean by "the density in the MAT line does need to be less than or equal to the maximum density in the ifc file or you get a different result."? What result are you referring to? It should not affect the results.
by Riku Tuominen
Tue May 12, 2020 1:46 pm
Forum: Bugs, problems, questions & feeback
Topic: Transport cycle freezing
Replies: 6
Views: 520

Re: Transport cycle freezing

So you tested with different computers and in every case you run Serpent with Ubuntu for Windows? We don't really run Serpent in Windows but maybe one of the users have faced similar issues as you. I guess you are not using batching interval of 20 cycles :)
by Riku Tuominen
Thu May 07, 2020 7:05 pm
Forum: Compiling and installing Serpent
Topic: Plotting in Serpent2
Replies: 4
Views: 522

Re: Plotting in Serpent2

Okay, that's a bit strange. You could always try to compile libgd yourself and make sure that the png support is enabled.
by Riku Tuominen
Thu May 07, 2020 1:46 pm
Forum: Compiling and installing Serpent
Topic: Plotting in Serpent2
Replies: 4
Views: 522

Re: Plotting in Serpent2

I have not seen this error before. I have always just installed libgd-dev on ubuntu and the plotting has worked without problems. You can try installing that package if you don't have it installed already.
by Riku Tuominen
Thu May 07, 2020 10:36 am
Forum: Bugs, problems, questions & feeback
Topic: IFC material density
Replies: 9
Views: 651

Re: IFC material density

The same interface can be used for several material with the setmat card . The materials given this way override the material given in the interface file. If you have several materials in a single interface, the densities must be given as density factors relative to the density specified in the mate...
by Riku Tuominen
Tue May 05, 2020 10:00 am
Forum: Bugs, problems, questions & feeback
Topic: IFC material density
Replies: 9
Views: 651

Re: IFC material density

Which ifc type are you using?