Clamping device for gas inflation type discharge capillary

[0030] The present invention will be further described below in conjunction with the embodiments and drawings, but the protection scope of the present invention should not be limited by this.

[0031] Such as figure 1 , figure 1 It is a schematic diagram of a clamping device of an inflatable discharge capillary tube based on the present invention. It can be seen from the figure that the device of the present invention includes: a supporting base 1, two supporting frames 2, a clamping tube sleeve 3, a T-shaped copper electrode 5, a sealing tube sleeve 8 and an extruded tube sleeve 9. The two supporting frames 2 are symmetrical The ground is fixed on the left and right ends of the supporting base, the clamping tube sleeve 3 is fixed on the support frame 2, the copper electrode 5 is embedded on the outside of the clamping tube sleeve 3, and the center of the copper electrode 5 is provided with an inverted T shape There is also a rubber pad 7 between the copper electrode 5 and the clamping tube sleeve 3. The rubber pad 7 is pressed by tightening the screw between the copper electrode 5 and the clamping tube sleeve 3 to hold the copper electrode 5 To ensure the tightness between the clamping sleeve 3 and the clamping sleeve 3, the inner and outer ends of the clamping sleeve 3 are provided with external threads, which cooperate with the internal threads of the sealing sleeve 8 to make the clamping sleeve 3 and the sealing sleeve 8 tightly connected The upper part of the clamping tube sleeve 3 is provided with an air inlet pipe 4, and the inner middle part of the clamping tube sleeve 3 is provided with a groove with an outer width and a narrow inner width for the capillary tube 11 and the sealing ring 9 sleeved at the end of the capillary tube 11 And the squeeze tube sleeve 10 is placed, the sealing tube sleeve 8 is provided with a groove, the bottom of the groove is tightly attached to a section of the squeezed tube sleeve 10, the other end of the squeezed tube sleeve 10 is in close contact with the sealing ring 9, and the sealing ring The thread between the tightly sealed sleeve 8 and the clamping sleeve 3 forces the extruded sleeve 10 to squeeze the sealing ring 9 to ensure the tightness in the capillary tube 11. The outer end of the gas pipeline 6 is the laser inlet/outlet. The middle part of the gas pipeline 6 communicates with the air inlet pipeline 4, and the inner end of the gas pipeline 6 communicates with the pipe 12 of the capillary tube 11.

[0032] Combine figure 1 The installation process of the clamping device of the gas-filled discharge capillary is as follows:

[0033] ①Fix the support base and the support frame, and at the same time fix the clamping tube sleeve and the support frame;

[0034] ②Fix the copper electrode and rubber pad to the clamping tube sleeve with screws;

[0035] ③ Put the sealing tube sleeve, squeeze tube sleeve and sealing ring on one end of the capillary in turn, finally put on the clamping tube sleeve, and screw the sealing tube sleeve and the clamping tube sleeve tightly, so that the end of the capillary tube is clamped;

[0036] ④ Put the sealing sleeve, squeeze sleeve and sealing ring on the other end of the capillary in turn, and finally put on the clamping sleeve, screw the sealing sleeve and the clamping sleeve tightly, so that the clamping of the other end of the capillary is completed. hold.

[0037] The following is an example of a gas-filled capillary discharge stability test performed by this device:

[0038] Test conditions: Quartz glass capillary, size: inner diameter 0.5mm, length 5cm, the material of the holding device is plexiglass, discharge voltage 24KV, gas pressure of 0.05bar He, figure 2 : The abscissa is the discharge time, in ns, and the ordinate is the discharge current, in A. Such as figure 2 Shown is the capillary discharge current graph obtained by using the integrating beam transformer (ICT) and oscilloscope. This is the result of counting 100 discharges. The result shows that the discharge stability is very good.