Design and Implementation of a Compact Control System for Coupled RFQ-SFRFQ Linac

Author

Xia, W.L. ; Wang, Zhen ; Lu, Y.R. ; Zhao, Junhua ; Chen, Jiann-Jong ; Ren, H.T. ; Peng, S.X. ; Chen, J.E.

Author_Institution

State Key Lab. of Nucl. Phys. & Technol., Peking Univ., Beijing, China

Volume

61

Issue

4

fYear

2014

fDate

Aug. 2014

Firstpage

2345

Lastpage

2350

Abstract

The coupled RFQ-SFRFQ (CRS) linac, which couples radio frequency quadrupole (RFQ) and separated function structure radio frequency quadrupole (SFRFQ) into a single cavity, is a novel compact accelerator developed in Peking university. In this paper, the detailed design of the remote control system for the CRS linac was presented. The hardware configuration of the system consists of an industry computer (IPC) and several different types of Programming Logic Controller (PLC) modules. The high voltage protection and cavity tuning control were discussed. The control software was developed with Windows Control Center (WinCC) and Step7 based on C script and Ladder Diagram (LAD) respectively. The interlock protection mechanism was introduced into the control system and the operating data can be flexibly acquired from the archives in structured query language (SQL) sever 2005. This system has been successfully implemented for the operation of an upgraded He⁺ ion injector. For the input beam optimization, a parameter scanner code was developed to optimize the beam transmission in low energy beam transport (LEBT) section, and the final optimized beam parameters were obtained.

Keywords

SQL; linear accelerators; programmable controllers; C script; CRS linac; LAD; LEBT section; PLC modules; SQL; Step7; WinCC; Windows Control Center; beam transmission; cavity tuning control; compact accelerator; compact control system; control software; coupled RFQ-SFRFQ linac; high voltage protection; industry computer; input beam optimization; interlock protection mechanism; ladder diagram; low energy beam transport; optimized beam parameters; parameter scanner code; programming logic controller; remote control system; separated function structure radio frequency quadrupole; structured query language; Cavity resonators; Control systems; Frequency control; Ion sources; Radio frequency; Solenoids; Voltage control; Accelerator control systems; beam optimization; electron cyclotron resonance (ECR) ion source; low energy beam transport (LEBT);

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2014.2329876

Filename

6866258