Optimization of the 3 m TGM beamline, at CAMD, for constant initial state spectroscopy

详细信息	查看全文 | 推荐本文 |

• 作者：Yaroslav Losovyj ; Ihor Ketsman ; Eizi Morikawa ; Zhenjun Wang ; Jinke Tang ; Peter Dowben
• 关键词：Oxide dielectric layers ; Hafnium oxide ; Gd doping ; Resonant photoemission
• 刊名：Nuclear Instruments and Methods in Physics Research Section A ; Accelerators ; Spectrometers ; Detectors and Associated Equipment
• 出版年：2007
• 期刊代码：41_01689002
• 类别：ph
• 出版时间：11 November 2007
• 卷：582
• 期：1
• 页码：264-266
• 文件大小：254 K

摘要

The 3 m toroidal grating monochromator (TGM) VUV beamline at CAMD/LSU was realigned to achieve better illumination of the monochromator gratings with the goal of substantially increasing the flux at the higher photon energies. This is partly accomplished through a tilting of the monochromator (by about of 13.5°), with respect to the plane defined by the synchrotron, providing a smaller grazing angle at the initial mirrors. The improved performance of the beamline permits resonant photoemission studies at Gd 4d core threshold without resorting to second order light, which we demonstrate for Gd doped HfO₂.