No abstract available

No abstract available

[en] A portable cylindrical electrostatic fusion device (C-device) was developed. Earlier studies have focused on spherical geometry. Here the authors discuss a related, but radically different cylindrical version which offers great promise for application requiring that geometry. The C-device, operating in a plasma glow discharge mode, has produced neutrons at 106 neutrons/sec for D-D fusion (equivalent to 10⁸ neutrons/sec for D-T fusion). When used as a neutron generator, the C-device is well suited for tomographic diagnosis. Such a neutron generator would have advantages over both a beam-solid target generator and a neutron-emanating isotope. Advantages over a beam-solid target include lower estimated capital cost, longer life expectancy; over an isotope are an on/off capability, minimal radioactive inventory, variable source strength, self-calibrating capability, no storage shield. A detailed description of the device along with preliminary experimental data and an analysis of neutron yield vs. different operating parameters will be presented

[en] The factors affecting the energy of neutrons produced in generators with sealed tubes are presented. The change in the energy of neutrons interacting with the structural materials of the generator is not examined. The analysis will be useful to specialists doing practical work with neutron generators.

[en] The tube of the accelerator comprises 2 parts separated by an acceleration electrode connected to the external envelope and grounded. The first and the second parts of the tube hold respectively the ion source at a positive adjustable voltage and the target at a negative adjustable voltage. Application is made to neutron radiography

No abstract available

[en] The work aims at the design and construction of a 150 kV isolation transformer for a neutron generator. The transformer windings are designed to use cylindrical layers with circular enamel copper wires. The insulation of the dry type transformer uses the epoxy resin for encapsulated winding. This insulation is non-flammable under temperature 350 degree celsius and the breakdown voltage is 10-18 kV/mm. This insulation is suitable for insulating high voltage. The design of provides the temperature rise of winding not exceeding 65 degree celsius for protection of the cracking of epoxy resin due to the expansion of winding

No abstract available

[en] Neutrons are generated by nuclear reaction of an ion beam constituted of hydrogen heavy isotopes on a target made of a support with series of thin active absorbing layers separated by diffusion barriers. The thickness of each active layer is about the penetration depth of deuterium ions bombarding the target

[en] In devices where a ion beam is accelerated toward a target to produce a fusion reaction giving neutrons, a supplementary electrode is placed between the ion source and the acceleration electrode and is polarized at a value such that the beam is parallel or slightly divergent decreasing target erosion