Search found 8 matches

by MojoJojo
Fri Sep 27, 2019 11:45 pm
Forum: Bugs, problems, questions & feeback
Topic: Neutron source
Replies: 6
Views: 2094

Re: Neutron source

Unfortunately, no. Did you already check the usersrc.c subroutine? If you have a Matlab script that samples the source particles, you could basically implement the same routine directly in Serpent without the file I/O. I just did. I already made a Matlab script that generates source vectors and ass...
by MojoJojo
Thu Sep 26, 2019 11:20 pm
Forum: Bugs, problems, questions & feeback
Topic: Neutron source
Replies: 6
Views: 2094

Re: Neutron source

The energy can be set using "se <E>". Unfortunately at the moment there is no way to set the emission time, but there is a way around the problem using a pre-generated source file. If you define the entire source using: src <name> sf <file> 1 Serpent will read the source points from file "<file>". ...
by MojoJojo
Sat Jun 15, 2019 1:09 am
Forum: Users
Topic: Response function output of a helium-3 detector makes no sense
Replies: 4
Views: 376

Re: Response function output of a helium-3 detector makes no sense

The output of detector 2, multiplied by the volume, gives you the total absorption rate in the helium. Detector 5 is a microscopic rate, so you would need to multiply the result with material density and volume to get the corresponding (n,p) rate. Do you have an estimate on what reaction rate shoul...
by MojoJojo
Fri Jun 14, 2019 7:59 pm
Forum: Users
Topic: Response function output of a helium-3 detector makes no sense
Replies: 4
Views: 376

Re: Response function output of a helium-3 detector makes no sense

Both detectors 2 and 5 represent reaction rates. The difference is that detector 2 gives the macroscopic reaction rate (total absorption xs multiplied by flux and integrated over variables) and detector 5 the microscopic reaction rate (microscopic (n,p) xs multiplied by flux and integrated over var...
by MojoJojo
Fri Jun 14, 2019 12:19 am
Forum: Users
Topic: Response function output of a helium-3 detector makes no sense
Replies: 4
Views: 376

Response function output of a helium-3 detector makes no sense

Hello, I'm designing a subcritical molten salt reactor experiment, driven by a constant external neutron source. The test core looks as follow: https://i.ibb.co/jTCD9Tz/Description.png So the goal is to determine the total temperature reactivity coefficient using the change in neutron flux only, det...
by MojoJojo
Sun Oct 28, 2018 8:19 pm
Forum: Compiling and installing Serpent
Topic: running serpent in parallel
Replies: 14
Views: 19193

Re: running serpent in parallel

My Linux distribution is fedora, version 28. I had a problem with executing the command, which is supposed to enable the OpenMP option as per the installation manual: CFLAGS += -DMPI Which resulted in an error: bash: CFLAGS: command not found... I solved this problem by simply removing the space lef...
by MojoJojo
Sun Oct 28, 2018 12:02 am
Forum: Methods
Topic: Fusion
Replies: 41
Views: 11439

Re: Fusion

Hello, I'm new to SERPENT, and I have spent quite sometime to get the "Solid 2" geomtry card to work, but with no luck! What am I doing wrong ? % surfaces %Desired geometry % surf 1 cyl 0.0 0.0 2.5 0.0 100 % surf 2 hexxprism 0.0 0.0 9.0 0.0 100.0 % Using "solid 2" surf 1 cube 0.0 0.0 0.0 100 surf 2 ...
by MojoJojo
Fri Jul 06, 2018 9:32 pm
Forum: Compiling and installing Serpent
Topic: geometryplotter.c:22:16: fatal error: gd.h: No such file or
Replies: 2
Views: 2584

Re: geometryplotter.c:22:16: fatal error: gd.h: No such file or

I am using Fedora 20 OS and I had a similar problem: Missing GD library.
I solved the problem by inputting the following:

Code: Select all

yum install gd-devel