Effect of space charge on stability of beam distribution in the sns ring.

Fedotov, A. V. ; Wei, J. ; Gluckstern, R. L.

Technical Information Center Oak Ridge Tennessee

关键词: Beam profiles;    Distribution;    Neutron sources;    Spallation;    Stability;   

RP-ID  :  DE2001782063

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

In the Spallation Neutron Source (SNS) ring, multi-turn injection is employed to obtain a large transverse beam size which significantly reduces the space-charge tune shift of the accumulated beam. Careful choice of the painting scheme and bump function is required to obtain the desired beam profile together with low beam loss. In this paper we examine, both analytically and numerically, the effect of the space charge on the beam profile during multi-turn injection painting.