Note: New design of a cryogenic linear radio frequency multipole trap
Note: New design of a cryogenic linear radio frequency multipole trap
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DOI：
10.1063/1.3460265
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发表时间：
2010-07-01
影响因子：
1.6
通讯作者：
Schlemmer, Stephan
中科院分区：
文献类型：
--
作者：
Asvany, Oskar;Bielau, Frank;Schlemmer, Stephan
一种新设计的低温线性22极离子阱已建成和测试。它本质上是一个铜外壳，两个电极组通过蓝宝石绝缘体连接到相对的内壁上。这些不锈钢电极是整体电铸的，以保证良好的热传导。连接到外部线圈，它们形成约19 MHz谐振频率的LC电路。该电路由一个由商用数字合成器和一个10 W放大器组成的射频电源激励。缓冲气体冷却的H2 D+离子已被存储在这个陷阱在14 K的标称陷阱温度。离子的光谱证实，动力学（多普勒）温度与该值合理一致。2010年美国物理学会。[doi：10.1063/1.3460265]
A new design of a cryogenic linear 22-pole ion trap has been constructed and tested. It is essentially a copper housing to which opposite inner walls two electrode sets are attached via sapphire insulators. These stainless steel electrodes are electroformed in one piece to guarantee good heat conduction. Connected to an external coil, they form an LC-circuit of about 19 MHz resonance frequency. This circuit is excited with a rf power supply made of a commercial digital synthesizer followed by a 10 W amplifier. Buffer gas-cooled H2D+ ions have been stored in this trap at a nominal trap temperature of 14 K. Spectroscopy of the ions confirmed that the kinetic (Doppler) temperature is in reasonable agreement with this value. 2010 American Institute of Physics. [doi: 10.1063/1.3460265]