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Table 1

PTB calibration for different energies in the 1–20 MeV range. Flux rates correspond to a distance of 1 m from the source. Ti(T) stands for tritiated titanium. The energy spread is represented by the FWHM. The relative contribution of neutrons scattered in the target is indicated by Φsc/Φ.

Reaction <En> (MeV) (MeV) Target Flux (/cm2/s) Φsc/Φ (%)
2H(d,n)3He 5.0 0.2 D2-gas 5.2·103 <1.0
2H(d,n)3He 8.0 0.2 D2-gas 1.9∙104 <1.0
3H(d,n)4He 14.8 0.4 Ti(T) 1.3∙104 3.0

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