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Fig. 5
Flux dependance A) and spectral contribution B) of H2 or D2 as function of helium flow. Different fixed molecular hydrogen flows are shown (0.5, 0.75, and 1.0 sccm), resulting in 0.41, 0.59, and 0.76 mbar as a function of the helium flow rate. Additionally, D2 in He is depicted (0.5 sccm/0.41 mbar).
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