Characteristic Of Ion Source Discharge In NT50 Neutron Generator

Investigations into the making of sealed-off neutron tubes are mentioned here . Neutron tubes are a new kind of gas-discharge tube. The ions produced in a Penning ion source (a mixture of deuterons and tritons are used) are accelerated by a single-stage accelerating system to a certain potential. Comparing to other reactors or accelerators, the neutron generator has its own advantage, little cubage, light weight, easily operated, conveniently managed, etc. It also has low cost, so it suits to be generalized.Neutron generator has been widely used in many areas, such as in production of industry and agriculture, national defence, teaching experiment, especially in oil-well logging. At one time, the social demand improved the neutron generator's development. The technique of neutron generator syncretized many areas, and has become a independent technique.Now, there are several kinds of neutron generators existed. They have the same principle to create the neutron, the difference between them is that, different yield neutron generator has different structure size, different ion resource, so the characteristic of ion resource discharge is also different. The NT50 neutron generator, produced by Radiation Technology Institute of Northeast Normal University, uses the Penning ion source, has gained a good neutron yield.By this experiment, we study the characteristic of NT50 Neutron Generator discharge. Measure the relation of discharge current, ion source voltage and the inner pressure. Using computer, we draw the corresponding curve of three parameters above. Analyze data, gain the rule of ion source discharge., Then, we can find the ion source's prime working state and working parameter, improve the Neutron Generator's quality.