Title: Space charge effects in high intensity proton linacs

Speaker: Prof. Dr. Ingo Hofmann, GSI, Darmstadt, Germany

Host: Prof. TANG Jingyu

Time: 10:00 AM, Sept.28, 2012,  

Place: Room C305, IHEP Main Building

Abstract:

The lecture will give an overview of the role of space charge in high intensity linac beams. It presents the underlying physics mechanisms, illustrates them by simulation examples as well as experimental data, and discusses their relevance for linac design and beam studies. The lecture starts with a general discussion of beam equilibrium, resonances and instabilities of linac beams. In the main part the role of structure resonances, mismatch and emittance transfer is described and related to the practically important questions of emittance growth and beam loss.

About the speaker:

Ingo Hofmann is a senior scientist at GSI Darmstadt and professor at Goethe-University Frankfurt. After an early career as plasma physicist in Munich he switched to accelerator beam physics in the 1980's, when he joined GSI. There he established the accelerator theory department, from which he retired in 2008. He was a visiting scientist at Lawrence Berkeley Laboratory, Tokyo University, Oak Ridge (SNS) and repeatedly at Los Alamos and CERN.