Electrostatic septum for 50GEV proton synchrotron in J-PARC
Electrostatic septum for 50GEV proton synchrotron in J-PARC
复制标题
J-PARC 50GEV 质子同步加速器静电隔膜
DOI：
--
复制
发表时间：
2010
期刊：
影响因子：
--
通讯作者：
K. Okamura
中科院分区：
文献类型：
--
作者：
Y. Arakaki;M. Nishikawa;D. Horikawa;R. Muto;S. Murasugi;I. Sakai;Y. Shirakabe;M. Tomizawa;K. Okamura
双静电隔膜（ESS）是50GeV质子同步加速器慢速萃取的重要装置之一。为了减少光束损耗，我们研制了薄带状隔膜。如果带的对准性差，从光束看到的有效厚度变大，会增加光束的命中率。用激光聚焦位移仪测量了1.5m长间隔上的带状排列。估计隔膜的有效厚度分别为0.075mm和0.080mm。我们将报告高压调节和在光束调试下的性能。
The two electrostatic septa(ESS) are one of the most important device for the slow extraction in 50GeV proton synchrotron. We have developed the thin ribbon type septum in order to reduce the beam loss. If alignment of ribbons is poor, the effective thickness seen from the beam become large, and it would increase the beamhitting rate. The alignment of ribbon over 1.5m long septa was measured by a laser-focus displacement meter. The achieved effective thickness of septa is estimated to be 0.075mm and 0.080mm respectively. We will report a high voltage conditioning and a performance under beam commissioning.