Search found 39 matches

by keckler
Tue Jun 25, 2019 1:59 am
Forum: Methods
Topic: Photoneutron production
Replies: 0
Views: 934

Photoneutron production

Hello, An important aspect of the dynamics of reactors containing a lot of beryllium is that there are delayed photoneutrons coming from the interaction of photons with beryllium. This is also important in deuterium reactors. We are trying to quantify the effective delayed neutron fraction coming fr...
by keckler
Tue Jun 18, 2019 7:39 pm
Forum: Users
Topic: Validation of coupled n-gamma capabilities?
Replies: 1
Views: 744

Validation of coupled n-gamma capabilities?

Hello, I am wondering about any validation work that has been done on the coupled n-gamma capabilities in Serpent. I have seen the report specifically detailing the standalone gamma transport capabilities (http://montecarlo.vtt.fi/download/VTT-R-00494-17_web.pdf), but this does not go into the coupl...
by keckler
Fri Oct 12, 2018 6:17 pm
Forum: Input
Topic: Writing source files
Replies: 14
Views: 7101

Re: Writing source files

Thanks! Looks good now.
by keckler
Fri Oct 12, 2018 2:45 am
Forum: Input
Topic: Writing source files
Replies: 14
Views: 7101

Re: Writing source files

Hello, I am currently trying to print some source distributions using the det 'df' option. For the most part it seems to be working, but sometimes when running I am getting warnings printed out that say: Warning message from function WriteSourceFile: P larger than 1 (1.356349E+00) This sounds to me ...
by keckler
Fri Aug 31, 2018 7:40 pm
Forum: Development
Topic: Tracking and depletion with continuous densities
Replies: 1
Views: 1438

Tracking and depletion with continuous densities

I understand there is now the capability to do tracking through materials with continuously varying densities, as used with the multiphysics interface. Has there been any consideration within the Serpent team for allowing continuously varying materials in depletion calculations as well? It seems to ...
by keckler
Tue Aug 14, 2018 6:27 pm
Forum: Users
Topic: tracking error in infinite cell calculation
Replies: 3
Views: 1977

Re: tracking error in infinite cell calculation

Ah, I see. I was reading the boundary conditions section of the old Serpent manual, not realizing there was this nice discussion in the link that you posted. As always, thanks for the quick response!
by keckler
Tue Aug 14, 2018 12:48 am
Forum: Users
Topic: tracking error in infinite cell calculation
Replies: 3
Views: 1977

Re: tracking error in infinite cell calculation

Update: Interestingly enough this seems to have gone away with a change of geometry. Originally I was using a hexxc and two pz surfaces to define my cell. There was no reason to use the hexagon, so I changed my geometry to use a cuboid surface. Now the issue has seemed to go away. I still can't find...
by keckler
Mon Aug 13, 2018 10:10 pm
Forum: Users
Topic: tracking error in infinite cell calculation
Replies: 3
Views: 1977

tracking error in infinite cell calculation

Hi, I am running a case with just one cell defined and reflective boundary conditions on all sides (i.e. I have an infinite domain). There is only one universe. The system is very subcritical, but I am running in criticality mode. I am doing this so that I can get the kinf evolution with burnup of a...
by keckler
Tue May 08, 2018 7:05 pm
Forum: Development
Topic: Avery Coupling Coefficients
Replies: 3
Views: 1772

Re: Avery Coupling Coefficients

Yes, that is the paper I am referring to.

I have not contacted them, but I will. I only posted on here because Palmiotti said that he thinks the capability will be merged into the official releases of Serpent. I guess he may have been mistaken.

Thanks!
by keckler
Mon May 07, 2018 7:16 pm
Forum: Development
Topic: Avery Coupling Coefficients
Replies: 3
Views: 1772

Avery Coupling Coefficients

Hello, I know that the Avery coupling coefficients capability has been in some 'unofficial' versions of Serpent for a while now, but I was wondering if the capability will ever be added to the official releases. This capability could probably make for some very interesting analysis! I saw a paper at...