KINETIC-ANALYSIS OF MCF EXPERIMENTS IN TRIPLE H D/T MIXTURES/

We report the results of an analysis of time and energy distributions effusion products obtained in experiments on dt mu-fusion of HD molecu les in triple H/D/T mixtures performed in Gatchina in 1985 and at PSI in 1989-92 with a high-pressure ionization chamber and neutron detecto rs. With different concentrations of tritium, 2.7 and 0.05%, it was po ssible to evaluate the rate of dt mu formation from the spin states F = 0 and F = 1 of t mu atoms. The combined analysis of these experiment s provided information about the contribution of epithermal dt mu form ation to the initial part of the time spectra, which depends on the ra tio of the exchange rates (lambda(pt)/lambda(pd))(eff). c(t)/c(d) = (l ambda(pt)/lambda(pd) + b). c(t)/c(d), where b is the fraction of the f ast muon dt-exchange at high energy of d mu atoms