SAP2014 - List of Authors (Wang, S.)

Paper	Title	Page
WEAMH1	The Commissioning Plan and Preparation for CSNS Accelerators	1
	S. Wang IHEP, Beijing, People's Republic of China
	The China Spallation Neutron Source (CSNS) accelerator consists of an 80MeV H⁻ lianc and an 1.6GeV proton rapid cycling synchrotron, and it provide 100kW beam to the neutron target. At present, the most of the element of accelerator is under mass production and test. The installation and beam commissioning will be started from Ion Source, and done section by section. To make the beam commissioning smoothly and successfully, many preparation works on both accelerator physics and hardware have been doing. In this paper, the summary on the preparation work for beam commissioning is given, including the commissioning schedule, detailed commissioning plan, the development of the commissioning software, and etc.

WEPH04	Physics Design of CSNS RCS Injection and Extraction System	32
	J. Qiu, N. Huang, J.Y. Tang, S. Wang IHEP, Beijing, People's Republic of China
	In this paper, the development of injection and extraction system design for CSNS RCS are introduced. It is a challenge for the injection system to place all the complicated injection devices in one uninterrupted long drift, such as DC and painting bumper magnets, the carbon stripping foils system, beam monitors, the ceramic vacuum chambers, and beam dump. The beam extraction process from the CSNS RCS is a single turn two step process, requiring a group of kickers and a Lambertson septum magnet.

THAMH4	Coupling Impedance Measurements of Extraction Kicker in CSNS/RCS	102
	Y.D. Liu, L. Huang, S. Wang IHEP, Beijing, People's Republic of China
	Funding: Supported by National Natural Science Foundation of China(11275221,11175193) China Spallation Neutron Source (CSNS) is a high intensity proton accelerator based facility. Its accelerator complex includes two main parts: an H⁻ linac and a Rapid Cycling Synchrotron (RCS). The RCS accumulates the 80MeV proton beam, and accelerates it to 1.6GeV, with a repetition rate of 25Hz. The 1.6GeV beam is fast extracted for striking the neutron target with average beam power of 100kW. Based on the summarized impedance estimation for various kinds of vacuum components in RCS, the beam coupling impedance of the extraction kicker must be controlled. An experimental platform has been set up to study impedance of extraction kicker in IHEP. With the measurement system, the longitudinal and transverse impedance of extraction kicker were measured with coaxial-wire and dual-wire methods, respectively.

Paper

Title

Page

The Commissioning Plan and Preparation for CSNS Accelerators

1

S. Wang
IHEP, Beijing, People's Republic of China

The China Spallation Neutron Source (CSNS) accelerator consists of an 80MeV H⁻ lianc and an 1.6GeV proton rapid cycling synchrotron, and it provide 100kW beam to the neutron target. At present, the most of the element of accelerator is under mass production and test. The installation and beam commissioning will be started from Ion Source, and done section by section. To make the beam commissioning smoothly and successfully, many preparation works on both accelerator physics and hardware have been doing. In this paper, the summary on the preparation work for beam commissioning is given, including the commissioning schedule, detailed commissioning plan, the development of the commissioning software, and etc.

WEPH04

Physics Design of CSNS RCS Injection and Extraction System

32

J. Qiu, N. Huang, J.Y. Tang, S. Wang
IHEP, Beijing, People's Republic of China

In this paper, the development of injection and extraction system design for CSNS RCS are introduced. It is a challenge for the injection system to place all the complicated injection devices in one uninterrupted long drift, such as DC and painting bumper magnets, the carbon stripping foils system, beam monitors, the ceramic vacuum chambers, and beam dump. The beam extraction process from the CSNS RCS is a single turn two step process, requiring a group of kickers and a Lambertson septum magnet.

THAMH4

Coupling Impedance Measurements of Extraction Kicker in CSNS/RCS

102

Y.D. Liu, L. Huang, S. Wang
IHEP, Beijing, People's Republic of China

Funding: Supported by National Natural Science Foundation of China(11275221,11175193)
China Spallation Neutron Source (CSNS) is a high intensity proton accelerator based facility. Its accelerator complex includes two main parts: an H⁻ linac and a Rapid Cycling Synchrotron (RCS). The RCS accumulates the 80MeV proton beam, and accelerates it to 1.6GeV, with a repetition rate of 25Hz. The 1.6GeV beam is fast extracted for striking the neutron target with average beam power of 100kW. Based on the summarized impedance estimation for various kinds of vacuum components in RCS, the beam coupling impedance of the extraction kicker must be controlled. An experimental platform has been set up to study impedance of extraction kicker in IHEP. With the measurement system, the longitudinal and transverse impedance of extraction kicker were measured with coaxial-wire and dual-wire methods, respectively.