EMITTANCE MONITORS BASED ON BRAGG-FRESNEL LENSES

被引：5

作者：

HARTMAN, Y ^{[1
]}

TARAZONA, E ^{[1
]}

ELLEAUME, P ^{[1
]}

SNIGIREVA, I ^{[1
]}

SNIGIREV, A ^{[1
]}

机构：

[1] EUROPEAN SYNCHROTRON RADIAT FACIL,F-38043 GRENOBLE,FRANCE

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1995年 / 66卷 / 02期

关键词：

D O I：

10.1063/1.1145775

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Two different setups for imaging an undulator source in the x-ray range have been tested. In the first, two circular Bragg-Fesnel lenses (BFL) were combined to form a telescope. The second consisted of one circular BFL and an asymmetrically cut crystal which produced vertical magnification. The emittance of the electron beam ε can then be deduced from the measured size of the source σ and the knowledge of the beta function at the source: ε=σ2/β. Effects were observed due, on the one hand, to the small aperture of the BFL and, on the other hand, to the angular emission pattern from an undulator. © 1995 American Institute of Physics.

引用

页码：1978 / 1980

页数：3