confinement: add option to weigh by mass instead of volume#519
Merged
ManuelHu merged 8 commits intolegend-exp:mainfrom Feb 5, 2026
Merged
confinement: add option to weigh by mass instead of volume#519ManuelHu merged 8 commits intolegend-exp:mainfrom
ManuelHu merged 8 commits intolegend-exp:mainfrom
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ManuelHu
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Contributor
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I think for the background model we also want for some sources to give a different weighting, I am thinking of 2vbb where you want this proportional to mass*enrichment. |
Member
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not sure how to implement? we would somehow need to extract the density of an isotope in the volume in the confinement code |
Contributor
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Well enrichement fraction attached to the G4PhysicalVolume no? |
Member
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There is no such thing attached to the G4 object |
Contributor
Author
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surely we can calculate the mass fraction of an isotope, similar to what this PR already does to get the materials density. certainly not straightforward (the material api is horrible), but doable. |
Contributor
Author
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I had a quick look, getting the mass of an isotope in a volume is ~ 10 lines of code. |
Contributor
Author
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should now be all implemented and tested |
Contributor
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Very nice!
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Subject: Re: [legend-exp/remage] confinement: add option to weigh by mass instead of volume (PR #519)
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should now be all implemented and tested
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