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The 1.01 MeV triton burnup in FT deuterium discharges has been investigated by the measurement of 14.1 MeV and 2.45 MeV neutron emission. At large values of qL, the burnup is found to increase with plasma current as expected; around qL = 3, a reduction is observed, while for lower qL values the burnup seems to increase again, but is more erratic.

Articles you may be interested inNeutron tomography of axially symmetric objects using 14 MeV neutrons from a portable neutron generator Rev. Sci. Instrum. 85, 085109 (2014);The absolute neutron yield of the 14 MeV Frascati neutron generator ͑FNG͒ is routinely measured by means of the associated alpha-particle method with a silicon surface barrier detector ͑SSD͒. This paper describes the work carried out to characterize the neutron source in terms of absolute intensity and angle-energy distribution of the emitted neutrons. The development of the measuring setup and the assessment of the measurement results are also reported. A complementary calibration procedure for validating the SSD results, based on the use of fission chambers and the activation technique, is also reported. An accurate analysis of the system has been performed via the Monte Carlo neutron and photon MCNP transport code. A detailed model of the neutron source that includes ion slowing down has been inserted into the MCNP code to permit a numerical calibration of the neutron source for comparison with the experimental results. The resulting agreement among the various methods is very good considering the uncertainties, and an accuracy of Ϯ2% is achieved for the measurement of the 14 MeV neutron yield of the FNG.

The interaction of deuterium gas with titanium has produced a flow of neutrons in two experiments reported here. This seems to show that it is not necessary to use electrolysis in order to obtain a low-temperature fusion reaction between deuterium nuclei. The experiment confirms also that nonequilibrium conditions axe necessary in order to produce such a phenomenon.

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