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Cryogenic Liquid Jets for High Repetition Rate Discovery Science
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低温真空,操作时间低至50毫秒
J W Klimes1,2,3, Kanika1,2, A Krishnan1,4
1GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany.
The Review of scientific instruments
|November 17, 2023
概括
一个新的冷真空在强磁场中运行,开/关时间快50毫秒. 这种门可以在极端真空条件下长期存储高电荷离子,从而提高实验效率.
科学领域:
- 物理 物理学 物理
- 真空技术真空技术是什么
- 低温生化技术 (Cryogenics) 是一个非常重要的技术.
背景情况:
- 保持极端真空条件 (低于10−15hPa) 对于涉及敏感样品 (如高电荷离子) 的实验至关重要.
- 将超高真空 (UHV) 系统连接到不那么苛刻的真空环境往往需要专门的门,这些门可以在极端条件下可靠地运行.
- 当前的冷门可能无法提供动态实验周期所需的速度或磁场兼容性.
研究的目的:
- 设计,制造和测试一种新的冷真空.
- 为了实现快速的门运行 (50毫秒),适合动态实验需求.
- 在强磁场和极端真空环境中确保门的功能.
主要方法:
- 开发一种能够在液温度下密封宁陷的冷门.
- 在室温离子束线 (10−9 hPa) 和冷陷 (< 10−15 hPa) 之间整合门.
- 门性能的表征,包括打开/关闭时间和真空完整性.
主要成果:
- 一个低温真空的成功运行,响应时间短至50毫秒.
- 已证明能够在冷陷内保持比10−15hPa更好的真空.
- 门证实在强磁场和各种工作周期中可靠运行.
结论:
- 开发的冷真空显著增强了实验设置,需要在极端真空和不那么苛刻的环境之间临时连接.
- 它的快速操作和坚固的设计在涉及重复循环的实验中提高了效率.
- 这项技术对于在超高温条件下长期存储和操纵高电荷离子至关重要.
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