Author: Sidorov, V.
Paper Title Page
THA2 Point-like Neutron Emission Observation Using a Neutron Generator Based on a Gasdynamic ECR Ion Source 185
  • S. Golubev, I. Izotov, R.L. Lapin, S. Razin, R.A. Shaposhnikov, V. Sidorov, V. Skalyga
    IAP/RAS, Nizhny Novgorod, Russia
  Funding: The work was supported by Russian Science Foundation, Grant No. 16-19-10501.
One of the interesting applications of ECR ion sources is their use as a part of neutron generators. The use of high-current gasdynamic sources with plasma heating by high-frequency gyrotron radiation allows to increase neutron yield, and obtain a point-like neutron emission by sharp focusing of a high-quality deuterium ion beam on a target. Such point-like neutron source could perspective for neutron tomography. In the first experiments at SMIS 37 facility the high-current deuterium ion beam was focused by a simple magnetic coil (magnetic field strength up to 2 T) placed behind two-electrode extraction system on a titanium target saturated with deuterium. It was demonstrated that in such system a weakly descending 60 mA ion beam with the convergence of 50 could be focused in 1 mm spot resulting in 8 ' cm-2 of current density at the focal plane. Measured neutron yield from the target placed in the focal region under conditions of the beam energy of 80 keV reached a value of 1010 neutrons per second in 1 ms pulse.
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