| 摘要 |
PURPOSE:To seek to promote low inductance and maintenance control facilitation by making a vacuum trigger gap free in mounting/dismounting and arranging an external conductor provided with an external terminal in the coaxial form with the vacuum gap. CONSTITUTION:A vacuum trigger gap device 3, which forms plasma X-ray source along with a condenser 1, a discharge tube 2 for X-ray generation, etc., is constituted of a vacuum trigger gap 5 free in mounting/dismounting and an external conductor 4 equipped with external terminals 9, 9a coaxial with it. When a trigger electrode 8 for the terminal 9a and the gap 5 is applied with a pulse from a pulse power source 27, plasma occurs by the creeping discharge of an insulator 28 and electricity is discharged between opposed electrodes 6, 7 and applied to between high and low electrodes 24, 25 of the discharge tube 2 through a coaxial cable 19a and X-ray is generated. By having constituted this device 3 in the coaxial form, the inductance is reduced and since the gap 5 is free in mounting/dismounting, the maintenance control inclusive of the exchange operation becomes easy. |
