Hydrogen thyratrons use hydrogen or deuterium as arc discharge dielectric,which have the advantages of high working voltage,high pulse current,quick and steady fire lighting,low trigger voltage,high efficiency,long life,light weigh,small size,easy for use,etc.Hydrogen thyratrons are widely used in scientific research,medical treatment and industry such fields,which include laser instruments,radar,pulse modulator,medical linear accelerator,tommy bar protection and other electric instruments and equipments.