H and He concentrations in irradiation cases (ORIGENS)

[Am241]

Hello,

I have been preparing a series of irradiation cases with "=ORIGENS" with SCALE6.1 in a Windows'. I was trying to calculate gas concentrations in spent fuel.

After running the work, Kr and Xe appear in the output. However, I found no hydrogen nor helium in the concentration table element list (please see screenshot beneath).

I have seen similar outputs (with SCALE6.1.2 if I am not mistaken) in which this same table starts with H and He concentrations (and then Ga, Ge, etc).

How can I draw the H and He concentrations from my output? Is it a SCALE version's issue? or is it my fault I did something wrong in my input?

Thanks in advance

[Ian Gauld]

Ternary fission yields were added in the Scale 6.1.1 data library update. This is described in the newsletter https://www.ornl.gov/sites/default/files/2019-02/scale_44_spring2012.pdf. It is highly advisable to update to 6.1.2 to get the most up to date library data.

[Am241]

Thank you for your reply. I will try to get the 6.1.2 installed 👍