MTCA.4-based LLRF control system for the C-ADS proton Linac injector I

作     者：R.Liu X.P.Ma N.Gan H.Y.Lin Q.Y.Wang Z.H.Mi S.Z.Wang X.F.Huang Yan Wu G.W.Wang Y.L.Chi Weimin Pan 

作者机构：Key Laboratory of Particle Acceleration Physics and TechnologyIHEPCASBeijing 100049China 

出 版 物：《Radiation Detection Technology and Methods》 (辐射探测技术与方法（英文）)

年 卷 期：2017年第1卷第1期

页      面：13-20页

学科分类：08[工学] 0807[工学-动力工程及工程热物理] 0827[工学-核科学与技术] 082701[工学-核能科学与工程] 0703[理学-化学] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）] 

主　　题：RF system RFQ Spoke cavity LLRF MTCA.4 CW proton beam 

摘      要：Objective:The Chinese ADS proton Linac injector I composed of an electron cyclotron resonance ion source,a lowenergy beam transport line,a radio frequency quadrupole(RFQ)accelerator,a medium-energy beam transport(MEBT)line,a superconducting section and beam dump with design goal to achieve CW proton beam with beam current 10 mA and energy gain around 10 *** order to maintain the stability of the RF system,to compensate for the beam load effect and to provide the GUI required for the operation of the RF power system,we have established a LLRF control ***:This LLRF system for ADS proton Linac injector I in IHEP consists of RF reference system and LLRF controllers for oneRFQcavity,twoMEBTbunching cavities and 14 superconductive spoke *** have adopted a new development mTCA.4-based hardware platform,and it has some characteristics such as faster bandwidth,standardized design,easy operation and maintenance and good ***:The LLRF system has been improved and optimized and has now been put into *** takes into account the pulse and CW beam flow mode,feedforward and feedback control ***:With the help of this system,we achieved stable operationwith narrowpulses,long pulses,andCWmodes under different beam *** article describes the implementation of this system and presents some initial the CW beam acceleration results with the help of this system at the end of 2016.