In a generalized beam-target model, the "Gyrating Particle Model" (GPM), the strong suprathermal fusion production of both dynamic phases of the plasma focus POSEIDON (W o = 280 kJ, U o = 60 kV, Mather type) is considered to be due to the fast accelerated deuterons gyrating in pinch structures. The results of this new model are compared with spectrally and spatially resolved measurements of fusion protons and accelerated deuterons, to give evidence of the validity of this generalized beam-target model for both phases. Statements are obtained on the number and distribution function of accelerated deuterons, necessary to explain the observed fusion yield.

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Articles you may be interested inDirect asymmetry measurement of temperature and density spatial distributions in inertial confinement fusion plasmas from pinhole space-resolved spectra Phys. Plasmas 21, 050702 (2014);Methods for ion detection with high spatial and spectral resolution in the energy range 70 keV

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3~Pu was produced by the bombardment of 33U with 30-MeV e particles and its decay was studied by y-ray spectroscopy after a chemical separation. This isotope decays predominantly by electron capture with a half-life of 25.6 min. Energies and intensities of 15 y rays have been determined. An extended decay scheme is proposed and electron-capture branching intensities are given.

The plutonium isotopes 232pu, 233pu and 234pu were produced by (~, xn) reactions with 2aaU. After a chemical separation their decay was studied by y-ray and ~-spectroscopy.For 233pu twenty-seven y-ray energies and intensities were measured and a decay scheme is proposed. An additional c~-transition was detected for 232pu. The half-lives were determined for all three isotopes.

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