He accumulation effect in solid and liquid D-T mixture

This article reports the accumulation effect of the 3 He originating from tritium β decay; 3 He created in solid remains in it, while one in liquid diffuses and goes out to the vapor gas. We observed this effect through the neutron detection from muon catalyzed fusion phenomenon (μCF), and gave it qualitative understanding, by which the muon transfer rate from (dμ) and (tμ) to helium was derived.