Title :
Time-resolved measurement system using Optical Transition Radiation for electron beam of high energy and high current
Author :
Jiang Xiao-Guo ; Yang Guo-Jun ; Zhang Kai-Zhi ; Shi Jin-shui ; Deng Jian-jun ; Wang Yuan ; Li Cheng-Gang
Author_Institution :
Inst. of Fluid Phys., CAEP, Mianyang, China
Abstract :
The technology using Optical Transition Radiation (OTR)which is a main method for measuring the electron beam of high energy and high current has been developed for the past ten years. OTR characterized by the ultra-fast response, high resolution and capability of measuring both spatial and angular profiles of an electron beam. It also can measure the beam energy and divergence. A time-resolved measurement results of an electron beam produced by Linear Induction Accelerator ( LIA ) can provide much more detail information so that many problems about the beam transmission can be known well. Such a time-resolved measurement system has been developed recently in our lab and put into operation. It provides an on-line beam diagnostic method for a 18.5MeV, 2kA, 90ns(FWHM) electron pulse by Dragon I[1]. The beam emittance and its variation during the 90ns pulse are obtained in 10ns time interval. The time-resolved results of about 2200π.mm.mrad have been obtained from Dragon I.
Keywords :
electron beams; linear accelerators; particle beam diagnostics; particle beam dynamics; transition radiation; beam divergence; beam emittance; beam energy; current 2 kA; electron beam angular profiles; electron beam production; electron beam resolution; electron beam spatial profiles; electron volt energy 18.5 MeV; high current electron beam; high energy electron beam; linear induction accelerator; on-line beam diagnostic method; optical transition radiation; time 90 ns; time-resolved measurement system;
Conference_Titel :
High Power Particle Beams (BEAMS), 2008 17th International Conference on
Conference_Location :
Xian
