¡Ñ¥¤¨´¥´´µ£µ ˆ´¸É¨ÉÊÉ Ÿ¤¥•´ÒÌ ˆ¸¸²¥¤µ¢ ´¨°. "Ê¡´ , 2004 Bom V. R. et al. E15-2004-132 Experimental Investigation of Muon-Catalyzed dt Fusion in Wide Ranges of D/T Mixture Conditions A vast program of the experimental investigation of muon-catalyzed dt fusion was performed at the JINR Phasotron. Parameters of the dt cycle were obtained in a wide range of D/T mixture conditions: temperatures of 20 ÷ 800 K, densities of 0.2 ÷ 1.2 LHD and tritium concentrations of 15 ÷ 86%. The results obtained are summarized.The investigation has been performed at the Dzhelepov Laboratory of Nuclear Problems, JINR.

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By means of muon catalysis we study the phenomena in a pt fusion, which have been previously investigated in the only experiment and now are at the frontier of nuclear few-body physics. The experiment is aimed at measuring the yields of the reaction products: γ quanta, conversion muons and e + e − pairs. As a result, we plan to measure the pt-fusion partial product yields (ˇrst time for e + e − pairs) with accuracy not worse than 10%, and this will enable us to obtain the nuclear reaction rates in M1 and E0 transitions in A = 4 system.

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Computations of the accelerator section of the International Linear Collider (ILC), which con sists of superconducting niobium cavities, are performed for conditions of the maximum energy transfer to electrons that travel along the cavity axis. A mathematical model and software packages are created for the computation of the electric characteristics and profile of a single cell cavity. A computer based synthesis of the cavity shape that yields the required electric characteristics is performed. The promising design variants of a single cell cavity, with which a quality factor of 10 10 is provided at a working frequency of 1.3 GHz, are found to optimize the construction and manufacture of a single cell cavity. The electric characteristics of a chain of single cell cavities are computed.

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