Novel internal target for electron scattering off unstable nuclei.
Novel internal target for electron scattering off unstable nuclei.
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DOI：
10.1103/physrevlett.100.164801
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发表时间：
2008-04
影响因子：
8.6
通讯作者：
M. Wakasugi;T. Emoto;Y. Furukawa;K. Ishii;S. Ito;T. Koseki;K. Kurita;A. Kuwajima;T. Masuda-T.-Masu
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文献类型：
--
作者：
M. Wakasugi;T. Emoto;Y. Furukawa;K. Ishii;S. Ito;T. Koseki;K. Kurita;A. Kuwajima;T. Masuda-T.-Masu
研制了一种新的内靶，它将使电子在电子储存环中被短寿命放射性核散射成为可能。首次成功地利用了电子储存环中的“离子捕获”现象形成电子散射靶。在80 mA的电子束电流下，沿电子束轴沿着捕获约7 × 10（6）个稳定的133 Cs离子85 ms。通过测量弹性散射电子，确定了储存电子与俘获Cs离子之间的碰撞光度为2.4（8）× 10（25）cm（-2）s（-1）。
A novel internal target has been developed, which will make electron scattering off short-lived radioactive nuclei possible in an electron storage ring. An "ion trapping" phenomenon in the electron storage ring was successfully utilized for the first time to form the target for electron scattering. Approximately 7 x 10(6) stable 133Cs ions were trapped along the electron beam axis for 85 ms at an electron beam current of 80 mA. The collision luminosity between the stored electrons and trapped Cs ions was determined to be 2.4(8) x 10(25) cm(-2) s(-1) by measuring elastically scattered electrons.