Compact neutron generator based on an all-glass helicon wave ion source

A compact neutron generator based on an all-glass helicon wave ion source, wherein comprising an ion source part, a chamber part and a target part;

• the ion source part, the chamber part and the target part are connected in sequence from top to bottom;
• the ion source part is used to receive the fed gas, and an antenna is used to excite the fed gas to generate spiral wave plasma by controlling the radio frequency power;
• the ion source part is fixed by bolting between an ion source cover plate and a chamber upper cover plate, an ion source chamber is a cylindrical body with an upper round cover capping, a small protruding hollow cylinder and a lower opening, the ion source chamber is fixed by boltings between a glass cover plate and the ion source cover plate, and the antenna and a magnet are placed outside the ion source chamber;
• the chamber part is used to create a vacuum environment for the ion beam;
• a chamber of the chamber part is cylindrical in shape, and the chamber upper cover plate and a lower cover plate of connected by bolts, the chamber upper cover plate, the chamber lower cover plate and the chamber are vacuum-sealed by sealing rings, and a vacuum port is provided around the chamber, and a vacuum pumping system is installed at the vacuum port;
• the target body part is used to extract the plasma inside the ion source chamber and concentrate the ion beam in the vacuum environment, so as to cause a deuterium-deuterium fusion reaction to produce neutrons, the target body part includes a coaxial extraction electrode, a target, a connecting frame, a target body support rod and a target base, the target body support rod is fixed to the target base by a fixing screw at the bottom edge, the connecting frame and the target body support rods are fixed by bolts, the target and the connecting frame are fixed by bolts, the extraction electrode is fixed to the connecting frame by embedding, the target base is connected to the lower cover of the chamber by bolts, a magnet is placed inside the extraction electrode, a resistor is placed at the connecting frame, and a high-voltage channel is opened inside the target base;
• wherein the gas is deuterium gas, which is stored in a gas storage container, and the gas storage container has a gas pressure gauge, a needle valve, and a pressure reducing valve;
• wherein a lead-out electrode is divided into two parts, a lead-out electrode head and a lead-out electrode straight cylinder, the two parts are matched and fixed through a slot, the lead-out electrode head is provided with a circular hole, and an inner concave ring is provided inside an upper end of the lead-out electrode straight cylinder;
• wherein a target support rod is connected to high voltage, which is further transmitted to the target and the extraction electrode, an electric field is generated between an extraction electrode and the target and the ion source cover electrode, which draws an ion beam into the chamber and bombards the target.