Performance of an elliptically polarized undulator beamline

被引：18

作者：

Chung, SC

Chen, J

Huang, LR

Wu, RT

Chen, CC

Cheng, NF

Chuang, JM

Tseng, PC

Huang, DJ

Chang, CF

Perng, SY

Chen, CT

Tsang, KL

机构：

[1] SRRC Beamline Grp, Synchrotron Radiat Res Ctr, Hsinchu 300, Taiwan

[2] Natl Chung Cheng Univ, Dept Phys, Taipei, Taiwan

来源：

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

关键词：

dragon beamline; circular polarization; spin polarization; MCD;

D O I：

10.1016/S0168-9002(01)00354-0

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A high performance wide range elliptically polarized undulator beamline is under commissioning at SRRC. The dragon-type design with two independent entrance slits has been employed to cover photon energies from 60 to 1400 eV. The energy resolution of the beamline has been measured using Ar, N-2, and Ne absorption spectra. The photon flux as a function of energy has been recorded by photodiode and gives an average of flux greater than 1 x 10(12) photons/s/ 200 mA with both slits set at 10 mum. Based on spin polarized photoemission and magnetic circular dichroism results, the degree of polarization calculated from the spin-polarized resolved spectrum is estimated to be better than 95% in the first harmonic undulator radiation. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：445 / 448

页数：4

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