Measurement of space-charge-induced frequency shifts of quadrupolar beam oscillations in the SIS

被引：9

作者：

Bar, R ^{[1
]}

Hofmann, I ^{[1
]}

Moritz, P ^{[1
]}

Oeftiger, U ^{[1
]}

机构：

[1] GSI Darmstadt, D-64291 Darmstadt, Germany

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1998年 / 415卷 / 1-2期

关键词：

D O I：

10.1016/S0168-9002(98)00516-6

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

For high-intensity heavy-ion beams a non-destructive method of determining the incoherent tune shift due to space charge and thus the emittance is of practical interest. We have implemented in the SIS a method which was for the first time studied recently at LEAR [M. Chanel, Proc. European Particle Accel. Conf., Sitges, 1996, p. 1015]. In this method the coherent space-charge tune shift of quadrupolar beam-envelope oscillations is used to determine the incoherent tune shift. These frequencies are slightly shifted from 2Q(h,v) due to space charge. The technique and the results of these measurements will be discussed in this paper. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：460 / 463

页数：4