Development of a Marx-coupled trigger generator with high voltages and low time delay

Coupled by the Marx of the “JianGuang-I” facility, a high voltage, low time-delay triggergenerator was developed. Working principles of this triggergenerator and its key issues were described in detail. Structures of thisgenerator were also carefully designed and optimized. Based on the “JianGuang-I” Marxgenerator, a test stand was established. And a series of experiment tests were carried out to the study performance of this triggergenerator. Experiment results show that the output voltage of this triggergenerator can be continuously adjusted from 58 kV to 384 kV. The time delay (from the beginning of the Marx-discharging pulse to the time that the output pulse of the triggergenerator arises) of this trigger pulse is about 200 ns and its peak time (0% ∼100%) is less than 50 ns. Experiment results also indicate that the time-delay jitter of trigger voltages decreases rapidly with the increase in the peak voltage of trigger pulses. When the trigger voltage is higher than 250 kV, the time-delay jitters (the standard deviation) are less than 7.7 ns .

Source: Review of Scientific Instruments - October 25, 2016 Category: Physics Authors: Yixiang Hu, Jiangtao Zeng, Fengju Sun, Peitian Cong, Zhaofeng Su, Shi Yang, Xinjun Zhang and Ai ’ci Qiu Source Type: research