CERN Accelerating science

Article
Title	The RF-System for A High Current RFQ at IHEP
Author(s)	Zhang, Z ; Li, J ; Qiao, J ; Xu, X
Affiliation	(IHEP Beijing, Beijing)
Publication	2004
In:	22nd International Linear Accelerator Conference, Lubeck, Germany, 16 - 20 Aug 2004, pp.712
In:	3rd Asian Particle Accelerator Conference, Gyeongju, Korea, 22 - 26 Mar 2004, pp.753
Subject category	Accelerators and Storage Rings
Abstract	The R&D of a high current proton RFQ is one of the most important research tasks of the Accelerator Driven Sub-critical system (ADS) basic research project. In preliminary research phase, the 352.2 MHz RF system will be operated in pulse mode. CERN kindly provided IHEP with some RF equipment. Because the given RF system was used for CW operation at CERN before, to apply them to our pulse mode operation, some modifications and improvements are necessary. We made some indispensable assemblies, and also did some tests and commissioning of every sub-system. At present, the initial high power conditioning of the klystron is finished, and output power can reach nominal value. A description of RF power system is given, in particularly, the performance of HV power supply, thyratron crowbar and capacitors, hard tube modulator and its control electronics, and klystron power conditioning are presented.