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一个SF6气体绝缘 -500千伏直流形绝缘器真空输入通道
G Palacios-Serrano1, C Hernández-García1, M Poelker1
1Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
The Review of scientific instruments
|March 11, 2026
概括
一种新的SF6气体绝缘输入通道成功将测试电极偏向到-500kV DC. 这种设计通过减少真空室体积来推进自旋极化电子源的高压直流应用.
科学领域:
- 物理 物理学 物理
- 电气工程 电气工程
- 材料科学 材料科学 材料科学
背景情况:
- 旋转极化电子源需要极端高真空条件.
- 传统的光电炮设计使用固体介电接口用于高压终端,限制操作电压.
- 降低真空室体积对于高效的光炮运行至关重要.
研究的目的:
- 开发和测试一种新的SF6气体绝缘形烯酸绝缘体输入通道,用于高压直流偏移.
- 通过满足极高真空要求,使自旋极化电子源的运行成为可能.
- 使用商业硬件扩展固体输入通道的证明工作电压.
主要方法:
- 设计和实施了一种新的SF6气体绝缘形化绝缘体输入通道.
- 使用输入通道,一个测试电极被偏向到-500kV直流 (DC).
- 输入设计采用形体绝缘体和商用环氧高压电缆容器之间的压缩SF6体积.
- 测试是在170.3千帕的充满SF6的室内进行的,然后在真空中进行.
主要成果:
- 在测试电极上成功应用了 -500 kV DC 的最大电压.
- 该系统在SF6气体压力 (170.3 kPa) 下运行,后来在真空下运行 (-259 kV,受到场辐射的限制).
- 与同轴圆柱体绝缘体相比,新设计减少了光真空室体积.
- 商用高压电缆硬件成功集成.
结论:
- 定制设计的SF6气体绝缘真空输入通道与商用高压电缆相结合,可以实现500kV直流偏移用于光电极.
- 该设计有效地减少了真空室的体积,促进了极端高真空条件.
- 这种方法扩展了先进电子源应用的输入通道的操作电压能力.
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