Hydrogen Thyratron

1. Hydrogen Thyratron performance and application
Hydrogen thyratrons use hydrogen or deuterium as arc discharge dielectric, which have high working voltage , high pulse current , quick and steady fire lighting, low trigger voltage, high efficiency, long life ,light weigh , small size , convenience useful such advantages. Hydrogen thyratrons are widely used in scientific research, military, medical treatment and industry such fields , which include laser instruments, radar, pulse modulator , medical beeline accelerator , tommy bar protection and other electric instruments and equipments.
Hydrogen Thyratron made up by grid, cathode, anode, hydrogen reservior and ceramic envelope. The basic structure is shown as the drawing. Sometimes Tetrode is developed with a preliminary ignition electrode for a better ignition characteristic and reduces the delayed time of ignition. Grids need to be piled up and made double gaps or more gaps thyratron to improve working voltage when working voltage surpasses certain value. Cathode structure of vane style increases the area of transmit, and cathode hot screen reduces heating power to make the temperature equal and at the same time to prevent the material of cathode spattering on the grid. The designs of anode and grid are good for withstanding voltage and giving out heat. Hydrogen reservoir is a special component of hydrogen thyratron. It is a metal envelope, which has heating thread and filled with the powder of titanium and hydrogen compound, and also there are holes on the wall of tube. When heating thread is electrified and heated, the powder of titanium and hydrogen compound will be decompounded and give out hydrogen, then hydrogen diffuses into hydrogen thyratron through the hole and ensures pd value on the left side of the curve. After the temperature becoming cool, hydrogen is sucked in by holes and forms the powder of titanium and hydrogen compound again and then make the tube at high vacuum state.