Experimental study on muon catalyzed dt fusion in a triple mixture of hydrogen isotopes (H/D/T) was carried out at the JINR phasotron. The measurements have been performed at various temperatures and densities with liquid and gaseous H/D/T mixtures. Results are presented for the main characteristics of the dt μ cycle. A reduction of the number of dt fusions is observed when hydrogen is added to the D/T mixture, This is mainly due to muon loss to the pt and pd cycles, which have a high sticking probability. We also observe an increase of the cycle rate when the temperature of the H/D/T mixture rises. This confirms the theoretical prediction.
Muon catalyzed dt fusion in dense D/T and H/D/T gas mixtures of hydrogen isotopes is studied by the MCF collaboration at JINR. The measurements were carried out with a high pressure target at the JINR phasotron in the temperature range 300-800 K at mixture densities \( \simeq 0.4{\text{ and }} \simeq {\text{0}}{\text{.8 LHD}}\). Tentative experimental results obtained by several analysis methods are presented.
Preliminary data are first presented for the measurements of effective parameters of MCF processes in dense D/T mixtures obtained by a novel method. Results are compared with the ones obtained by the “standard” method.
The ddµ molecule formation rates have been measured from the two hyperfine states of the dµ atom in the temperature range T=5–30 K. Results are consistent with the measurement of the TRIUMF group T=3 K and contradict theoretical predictions. This work was performed on the JINR phasotron (Dubna).
A package of calculation programs is written to create and analyze the main physical distributions related to the muon catalyzed fusion reactions in the D/T mixture. It involves the simulation of both the muon catalysis processes and registration systems with FADC. Special attention is paid to the absolute calibration problem. It follows from our observation that, in principle, it is not necessary to make special calibration measurements. The programs are intended for use in the large international project TRITON.