Effects of extreme magnetic quadrupole fields on penning traps and the consequences for antihydrogen trapping
Effects of extreme magnetic quadrupole fields on penning traps and the consequences for antihydrogen trapping
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DOI：
10.1103/physrevlett.95.155001
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发表时间：
2005-10-07
影响因子：
8.6
通讯作者：
van der Werf, DP
中科院分区：
文献类型：
--
作者：
Fajans, J;Bertsche, W;van der Werf, DP
对被限制在潘宁陷阱中的电子的测量表明，极端的四极场破坏了粒子的限制。大部分颗粒损失来自迄今未被认识到的颗粒直接进入壁面的弹道传输。测量结果符合雅典娜和ATRAP用来产生反氢的参数范围，并表明四极杆不能用来捕获反氢。
Measurements on electrons confined in a Penning trap show that extreme quadrupole fields destroy particle confinement. Much of the particle loss comes from the hitherto unrecognized ballistic transport of particles directly into the wall. The measurements scale to the parameter regime used by ATHENA and ATRAP to create antihydrogen, and suggest that quadrupoles cannot be used to trap antihydrogen.