First capture of antiprotons in a Penning trap: A kiloelectronvolt source.
First capture of antiprotons in a Penning trap: A kiloelectronvolt source.
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首次在潘宁陷阱中捕获反质子：千电子伏特源。
DOI：
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发表时间：
1986
影响因子：
8.6
通讯作者：
W. Kells
中科院分区：
文献类型：
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作者：
G. Gabrielse;X. Fei;Kristian Helmerson;S. Rolston;R. Tjoelker;T. Trainor;H. Kalinowsky;J. Haas;W. Kells
来自欧洲核子研究中心低能反质子环的反质子通过3毫米的材料，主要是Be，从21 MeV减速到3 keV以下。在飞行过程中，这些千电子伏的反质子被突然施加的3千伏电压所产生的潘宁陷阱捕获。反质子被保持100秒或更长时间。现在，在更好的真空条件下，捕集时间更长的前景非常好。这证明了大大改进反质子惯性质量测量的可行性，并为其他有趣的实验开辟了道路。
Antiprotons from the Low Energy Antiproton Ring of CERN are slowed from 21 MeV to below 3 keV by being passed through 3 mm of material, mostly Be. While still in flight, the kiloelectronvolt antiprotons are captured in a Penning trap created by the sudden application of a 3-kV potential. Antiprotons are held for 100 s and more. Prospects are now excellent for much longer trapping times under better vacuum conditions. This demonstrates the feasibility of a greatly improved measurement of the inertial mass of the antiproton and opens the way to other intriguing experiments.