Isolation between gas switches and trigger cable is very important to protect trigger generator in FLTD cavity, the leakage of traditional water solution resistors during long lifetime operation may cause serious insulation problem. In this paper, a six-gap gas spark switch is applied to investigate the influence of isolation methods with resistors and inductors on the amplitude and rise time of trigger pulse, triggered breakdown performance of the switch, formation of multi discharge channels and isolation effect when self-breakdown occurs. The results indicate that the amplitude decreases and the rise time of trigger pulse turns to be longer with the increase of resistance and inductance. Isolation with inductor of several μH is highly recommended for FLTD cavity. It has some advantages in reducing switch jitter, getting better isolation effect and reliability of the switch for long lifetime operation in FLTD. 1$$\int\limits_{{t_{st} }}^{{t_{br} }} {Vdt} = \lambda ,\quad V = \left\{ {\begin{array}{*{20}l} 0 \hfill & {for\;\;\left| {U(t) - U_{st} } \right| \le U_{st} ,} \hfill \\ {U(t) - U_{st} } \hfill & {for\;\;\left| {U(t) - U_{st} } \right| > U_{st} .} \hfill \\ \end{array} } \right.$$∫tsttbrVdt=λ,V=0forU(t)-Ust≤Ust,U(t)-UstforU(t)-Ust>Ust.

中文翻译：

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FLTD通过电阻器和电感器的气体火花开关触发方法比较

气体开关和触发电缆之间的隔离对于保护 FLTD 腔中的触发发生器非常重要，传统水溶液电阻器在长寿命运行期间的泄漏可能会导致严重的绝缘问题。本文采用六间隙气体火花开关，研究电阻电感隔离方式对触发脉冲幅度和上升时间、开关触发击穿性能、多放电通道形成和隔离效果的影响。发生自我击穿。结果表明，随着电阻和电感的增加，幅度减小，触发脉冲的上升时间变长。对于 FLTD 腔，强烈建议使用几 μH 的电感器进行隔离。它在降低开关抖动方面有一些优势，在 FLTD 中获得更好的隔离效果和开关可靠性，以实现长寿命运行。1$$\int\limits_{{t_{st} }}^{{t_{br} }} {Vdt} = \lambda ,\quad V = \left\{ {\begin{array}{*{20} l} 0 \hfill & {for\;\;\left| {U(t) - U_{st} } \right| \le U_{st} ,} \hfill \\ {U(t) - U_{st} } \hfill & {for\;\;\left| {U(t) - U_{st} } \right| > U_{st} .} \hfill \\ \end{array} } \right.$$∫tsttbrVdt=λ,V=0forU(t)-Ust≤Ust,U(t)-UstforU(t)-Ust>我们。