Radial current high power dummy load for characterizing the high power laser triggered transformer-type accelerator

Yin, Yan; Zhong, Huihuang; Liu, Jinliang; Heming, Ren; Yang, Jian; Zhang, Xiaoping; Hong, Zhi-Qiang

doi:10.1063/1.3480546

Cited by 4 publications

(2 citation statements)

References 12 publications

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“…The spark gap switch is one of the most important switches in pulsed power. There are several trigger technologies for spark gap, such as electrical, 4, 5 optical, 6 and mechanical, the most popular one is electrical trigger technology. But electrically triggered spark gap switches have some disadvantages when they are used in compact pulsed power systems.…”

Section: Introductionmentioning

confidence: 99%

Research of an electromagnetically actuated spark gap switch

Zhang

Chen

Liu

et al. 2013

Review of Scientific Instruments

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As an important part of pulsed power systems, high-voltage and high-current triggered spark gap switch and its trigger system are expected to achieve a compact structure. In this paper, a high-voltage, high-current, and compact electromagnetically actuated spark gap switch is put forward, and it can be applied as a part of an intense electron-beam accelerator (IEBA). A 24 V DC power supply is used to trigger the switch. The characteristics of the switch were measured for N2 when the gas pressure is 0.10-0.30 MPa. The experimental results showed that the voltage/pressure (V/p) curve of the switch was linear relationship. The operating ranges of the switch were 21%-96%, 21%-95%, 21%-95%, 19%-95%, 17%-95%, and 16%-96% of the switch's self-breakdown voltage when the gas pressures were 0.10, 0.14, 0.18, 0.22, 0.26, and 0.30 MPa, respectively. The switch and its trigger system worked steadily and reliably with a peak voltage of 30 kV, a peak current of 60 kA in the IEBA when the pressure of N2 in the switch was 0.30 MPa.

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Section: Introductionmentioning

confidence: 99%

Research of an electromagnetically actuated spark gap switch

Zhang

Chen

Liu

et al. 2013

Review of Scientific Instruments

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“…So the life of the metal thread load is short. Now, a water load with low inductance, high power, and constant resistance is usually used, and the water is a kind of aqueous resistive solution of copper sulfate (CuSO4) or sodium chloride (NaCl) of a concentration that is adjusted to match the impedance of the generator [15,16].…”

Section: Introductionmentioning

confidence: 99%

Electron emission of cathode holder of vacuum diode of an intense electron-beam accelerator and its effect on the output voltage

Cheng

Liu

Zhang

et al. 2011

Phys. Rev. ST Accel. Beams

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The vacuum diode which is used to generate relativistic electron beams is one of the most important parts of a pulsed-power modulator. In this paper, the electron emission of cathode holder of a vacuum diode and its effect on the output voltage is investigated by experiments on an intense electron-beam accelerator with 180 ns full width at half maximum and 200-500 kV output voltage. First, the field emission is analyzed and the electric field of the vacuum chamber is calculated. Then, the flatness of the output voltage is discussed before and after adding an insulation plate when a water load is used. It is found that the electron emission at the edges of the cathode holder is the main reason to cause the change of the flatness. Last, a piece of polyester film is used as a target to further show the electron emission of the cathode holder. This analysis shows that decreasing the electron emission of the cathode holder in such a pulse power modulator could be a good way to improve the quality of the output voltage.

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Coupling output of multichannel high power microwaves

Shu

Yuan

et al. 2010

Physics of Plasmas

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The coupling output of multichannel high power microwaves is a promising technique for the development of high power microwave technologies, as it can enhance the output capacities of presently studied devices. According to the investigations on the spatial filtering method and waveguide filtering method, the hybrid filtering method is proposed for the coupling output of multichannel high power microwaves. As an example, a specific structure is designed for the coupling output of S/X/X band three-channel high power microwaves and investigated with the hybrid filtering method. In the experiments, a pulse of 4 GW X band beat waves and a pulse of 1.8 GW S band microwave are obtained.

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Radial current high power dummy load for characterizing the high power laser triggered transformer-type accelerator

Cited by 4 publications

References 12 publications

Research of an electromagnetically actuated spark gap switch

Research of an electromagnetically actuated spark gap switch

Electron emission of cathode holder of vacuum diode of an intense electron-beam accelerator and its effect on the output voltage

Coupling output of multichannel high power microwaves

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