Confinement of a large number of antiprotons and production of an ultraslow antiproton beam.
Confinement of a large number of antiprotons and production of an ultraslow antiproton beam.
复制标题
限制大量反质子并产生超慢反质子束。
DOI：
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发表时间：
2005
影响因子：
8.6
通讯作者：
Y. Yamazaki
中科院分区：
文献类型：
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作者：
N. Kuroda;H. Torii;K. Y. Franzén;Z. Wang;S. Yoneda;Masayo Inoue;Masaki Hori;B. Juhász;D. Horvath;H. Higaki;A. Mohri;J. Eades;K. Komaki;Y. Yamazaki
我们用射频四极减速器将CERN反质子减速器产生的反质子从MeV级减速到keV级，并在一个多环陷阱中收集了5个减速脉冲。一些5×10(6)的反质子以这种方式堆积起来。通过等离子体模式频率的变化，非破坏性地研究了同时捕获的电子等离子体对俘获的反质子的冷却。我们还演示了从陷阱中提取10-500 eV反质子束的第一步。
We have used a radio frequency quadrupole decelerator to decelerate antiprotons emerging from the CERN Antiproton Decelerator from MeV- to keV-scale energy, and collected five decelerated pulses in a multiring trap. Some 5 x 10(6) antiprotons were stacked in this way. Cooling of the trapped antiprotons by a simultaneously trapped electron plasma was studied nondestructively via shifts in plasma mode frequencies. We have also demonstrated the first step in extracting a 10-500 eV antiproton beam from the trap.