Search found 23 matches

by ianyounker
Fri Dec 05, 2014 7:08 pm
Forum: Users
Topic: Jeff 3.2 Library
Replies: 3
Views: 987

Re: Jeff 3.2 Library

Thanks for the information. How do I prepare these files for use with Serpent 1.1.17? Is there a simple process to follow to create the xs, decay, and yield files/libraries necessary?

Thanks
Ian
by ianyounker
Thu Dec 04, 2014 11:49 pm
Forum: Users
Topic: Jeff 3.2 Library
Replies: 3
Views: 987

Jeff 3.2 Library

I am interested in Ytterbium (Yb) cross section data. To the best of my knowledge the libraries distributed with Serpent 1.1.17 (endf7, jeff2.2, jeff3.1, and jeff3.1.1) do not contain Yb xs data. I have found Yb data in jeff 3.2. Does a distribution of jeff 3.2 for Serpent users exist? If so, how do...
by ianyounker
Thu May 29, 2014 5:58 pm
Forum: Users
Topic: Decay calculations
Replies: 2
Views: 1002

Decay calculations

I am running calculations for activity and decay heat for 10 years after life in the reactor. I have an issue with my matlab results file. I cannot run the file in matlab because the value for rea_sampling_eff is -NAN. How can I eliminate NAN and have a value so matlab can run and I can gather my da...
by ianyounker
Tue Feb 04, 2014 7:01 pm
Forum: Users
Topic: Isotopic Absorption
Replies: 4
Views: 1108

Re: Isotopic Absorption

Mistake on my part. Thanks for the help Jaakko!
by ianyounker
Tue Feb 04, 2014 12:32 am
Forum: Users
Topic: Isotopic Absorption
Replies: 4
Views: 1108

Re: Isotopic Absorption

I am not sure the atomic density explains the difference. I use the following detector to get the total absorption within the FeCrAl. det 3 dm FeCrAl dr -2 FeCrAl For detector 3 I get a value of 0.06621 and I take this number to be the fraction of neutrons absorbed within the FeCrAl. I then set up m...
by ianyounker
Thu Jan 30, 2014 11:48 pm
Forum: Users
Topic: Isotopic Absorption
Replies: 4
Views: 1108

Isotopic Absorption

I have calculated the fractional absorption within my clad material (FeCrAl) using the -2 reaction. I am trying to get the fractional isotopic absorption within the FeCrAl. I have setup my detector materials the same way the SERPENT manual did. I have also used the proper reaction numbers (positive ...
by ianyounker
Thu Nov 14, 2013 10:28 pm
Forum: Users
Topic: DPA Calculations
Replies: 4
Views: 1284

Re: DPA Calculations

Serpent version 1.1.17. I am using ENDF B7 cross sections.
by ianyounker
Fri Nov 01, 2013 10:55 pm
Forum: Users
Topic: DPA Calculations
Replies: 4
Views: 1284

DPA Calculations

I am trying to do DPA calculations in Serpent. My detector input was: det 5 dm FeCrAl dr -444 FeCral where FeCrAl is my material and -444 is the response function I believe is related to DPA cross sections. My detector output was 0. Any thoughts on how to correct this? Is Serpent capable of doing DP...
by ianyounker
Sun Sep 22, 2013 3:39 pm
Forum: Users
Topic: BWR Water Rods Geometry
Replies: 5
Views: 1717

Re: BWR Water Rods Geometry

What type of reflections are you using in your BWR model? When use a sqc to contain your assembly and you use reflective boundary conditions are you creating an infinite core both radially and axially?
by ianyounker
Fri Sep 20, 2013 6:17 pm
Forum: Users
Topic: BWR Water Rods Geometry
Replies: 5
Views: 1717

Re: BWR Water Rods Geometry

I was looking at your BWR input file as I am also trying to make a BWR model. I am struggling with my k-eff values (they are low and around 0.15) and I saw that yours are where they should be (over 1.0). Could you please explain why you did not "cap" the final sqc of your assembly with pz planes at ...