Beam-based calibrations of the BPM offset at C-ADS Injector Ⅱ  

作　　者：陈伟龙 王志军 冯驰 窦为平 陶玥 贾欢 王旺生 刘淑会 何源 

机构地区：[1]Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China [2]University of Chinese Academy of Sciences, Beijing 100049, China

出　　处：《Chinese Physics C》2016年第7期158-161,共4页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(91426303,11525523)

摘　　要：Beam-based BPM offset calibration was carried out for Injector II at the C-ADS demonstration facility at the Institute of Modern Physics （IMP）, Chinese Academy of Science （CAS）. By using the steering coils integrated in the quadrupoles, the beam orbit can be effectively adjusted and BPM positions recorded at the Medium Energy Beam Transport of the Injector II Linac. The studies were done with a 2 mA, 2.1 MeV proton beam in pulsed mode. During the studies, the ＂null comparison method＂ was applied for the calibration. This method is less sensitive to errors compared with the traditional transmission matrix method. In addition, the quadrupole magnet＇s center can also be calibrated with this method.Beam-based BPM offset calibration was carried out for Injector II at the C-ADS demonstration facility at the Institute of Modern Physics （IMP）, Chinese Academy of Science （CAS）. By using the steering coils integrated in the quadrupoles, the beam orbit can be effectively adjusted and BPM positions recorded at the Medium Energy Beam Transport of the Injector II Linac. The studies were done with a 2 mA, 2.1 MeV proton beam in pulsed mode. During the studies, the ＂null comparison method＂ was applied for the calibration. This method is less sensitive to errors compared with the traditional transmission matrix method. In addition, the quadrupole magnet＇s center can also be calibrated with this method.

关 键 词：ADS Injector II beam commissioning BPM offset calibration null comparison method 

分 类 号：TL503[核科学技术—核技术及应用]