Source size and emittance monitoring on BESSY II

被引：9

作者：

Holldack, K ^{[1
]}

Feikes, J ^{[1
]}

Peatman, WB ^{[1
]}

机构：

[1] BESSY GmbH Berlin, Expt Div, D-12489 Berlin, Germany

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2001年 / 467卷

关键词：

storage ring; emittance monitors; pinhole arrays; Bragg-Fresnel optics; undulator radiation;

D O I：

10.1016/S0168-9002(01)00555-1

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Three optical monitors image the transverse cross section of the electron beam at BESSY II. The emittance of the electron beam can be determined from source images generated by hard X-ray pinhole cameras without additional measurement of the energy width of the beam. Vertical emittance changes down to 3 pmrad can be detected. Typical emittance values of 5 < <epsilon>(x) < 6 nmrad horizontal and of <epsilon>(y) < 100 pmrad vertical are provided in user runs with up to 300 mA ring current. These results agree with higher resolution measurements of the Bragg-Fresnel telescope. Measurements of the source size versus ring current as well as the influence of feedbacks and the relation between emittance coupling and the properties of undulator radiation are given. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：235 / 238

页数：4

共 7 条

[1] A BRAGG-FRESNEL MULTILAYER ELECTRON-BEAM MONITOR FOR 3RD-GENERATION STORAGE-RINGS [J].