Operational Status of PF-Ring and PF-AR after the Earthquake
Operational Status of PF-Ring and PF-AR after the Earthquake
复制标题
地震后PF-Ring和PF-AR的运行状况
DOI：
10.1088/1742-6596/425/4/042014
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
M. Yamamoto
中科院分区：
文献类型：
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作者：
T. Honda;S. Asaoka;K. Haga;K. Harada;Y. Honda;M. Izawa;Y. Kamiya;Y. Kobayashi;T. Miyajima;H. Miyauchi;S. Nagahashi;N. Nakamura;T. Nogami;T. Obina;T. Ozaki;H. Sagehashi;H. Sakai;S. Sakanaka;H. Sasaki;Y. Sato;M. Shimada;K. Shinoe;T. Shioya;M. Tadano;T. Tahara;T. Takahashi;R. Takai;H. Takaki;Y. Tanimoto;K. Tsuchiya;T. Uchiyama;A. Ueda;K. Umemori;M. Yamamoto
2011年，由于3月11日发生了前所未有的地震，KEK的两个SR源PF-ring和PF-AR需要改变运行计划。虽然注入器直线加速器和储存环受到严重损坏，但临时恢复很快完成，并于5月开始试运行。2011年10月可恢复正常用户业务。在震后的恢复工作中，PF环上的一些旧真空元件被拆除。幸运的是，这项工作带来了解决四极模纵向不稳定性的效果。自2011年以来，脉冲六极磁铁已取代传统的冲击磁铁用于PF环的顶注。取代单束模式的混合填充模式已经变得可用。最近，10赫兹的轨道切换串联圆偏振波荡器已开发的用户操作。
In 2011, two SR sources of KEK, PF-ring and PF-AR, needed to change the operation schedule because of the unprecedented earthquake on March 11. Though the injector linac and the storage rings suffered a serious damage, temporary recovery was accomplished quickly and the trial operation started in May. The regular user operation could be resumed in October 2011. In the restoration work after the earthquake, some old vacuum components were removed from PF-ring. This work fortunately brought an effect of settling the quadrupole-mode longitudinal instability. For the top-up injection of PF-ring, the pulsed sextupole magnet has been used instead of the conventional kicker magnets since 2011. The hybrid-fill mode in place of the single-bunch mode has become available. Recently, the 10-Hz orbit switching for the tandem circularly polarized undulators has been developed for the user operation.