Evaluation of a new VUV/soft x‐ray toroidal grating monochromator with a movable exit slit

1992 ◽  
Vol 63 (1) ◽  
pp. 1269-1273 ◽  
Author(s):  
D. C. Mancini ◽  
M. Bissen ◽  
D. Rioux ◽  
R. Patel ◽  
G. Rogers ◽  
...  
Keyword(s):  
Exit Slit ◽  
X Ray ◽  
Grating Monochromator

Design of an ultrahigh-energy-resolution and wide-energy-range soft X-ray beamline

2013 ◽  
Vol 21 (1) ◽  
pp. 273-279 ◽  
Author(s):  
L. Xue ◽  
R. Reininger ◽  
Y.-Q. Wu ◽  
Y. Zou ◽  
Z.-M. Xu ◽  
...  
Keyword(s):  
Energy Range ◽  
Energy Resolution ◽  
Wide Energy Range ◽  
Ultrahigh Energy ◽  
Exit Slit ◽  
Shanghai Synchrotron Radiation Facility ◽  
X Ray ◽  
Variable Line ◽  
Line Spacing ◽  
Wide Energy

A new ultrahigh-energy-resolution and wide-energy-range soft X-ray beamline has been designed and is under construction at the Shanghai Synchrotron Radiation Facility. The beamline has two branches: one dedicated to angle-resolved photoemission spectroscopy (ARPES) and the other to photoelectron emission microscopy (PEEM). The two branches share the same plane-grating monochromator, which is equipped with four variable-line-spacing gratings and covers the 20–2000 eV energy range. Two elliptically polarized undulators are employed to provide photons with variable polarization, linear in every inclination and circular. The expected energy resolution is approximately 10 meV at 1000 eV with a flux of more than 3 × 1010 photons s−1at the ARPES sample positions. The refocusing of both branches is based on Kirkpatrick–Baez pairs. The expected spot sizes when using a 10 µm exit slit are 15 µm × 5 µm (horizontal × vertical FWHM) at the ARPES station and 10 µm × 5 µm (horizontal × vertical FWHM) at the PEEM station. The use of plane optical elements upstream of the exit slit, a variable-line-spacing grating and a pre-mirror in the monochromator that allows the influence of the thermal deformation to be eliminated are essential for achieving the ultrahigh-energy resolution.

A new extra-focus monochromator designed for high-performance VUV beamlines

2015 ◽  
Vol 22 (2) ◽  
pp. 328-335 ◽  
Author(s):  
Chaofan Xue ◽  
Yanqing Wu ◽  
Ying Zou ◽  
Lian Xue ◽  
Yong Wang ◽  
...  
Keyword(s):  
High Performance ◽  
Vacuum Ultraviolet ◽  
Wide Energy Range ◽  
X Ray ◽  
Ultraviolet Range ◽  
Line Spacing ◽  
Wide Energy ◽  
Focus Spot ◽  
Grating Monochromator ◽  
Mechanical Compatibility

A new monochromator called an extra-focus constant-included-angle varied-line-spacing (VLS) cylindrical-grating monochromator (extra-focus CIA-VCGM) is described. This monochromator is based on the Hettrick–Underwood scheme where the plane VLS grating is replaced by a cylindrical one in order to zero the defocus at three reference photon energies in the vacuum-ultraviolet range. It has a simple mechanical structure and a fixed focus spot with high performance over a wide energy range. Furthermore, its mechanical compatibility with a standard VLS plane-grating monochromator allows convenient extension into the soft-X-ray range.

scholarly journals High resolution in the soft x‐ray range from a toroidal grating monochromator

1993 ◽  
Vol 64 (9) ◽  
pp. 2552-2557 ◽  
Author(s):  
T. Reich ◽  
Z. Hussain ◽  
E. Moler ◽  
M. Blackwell ◽  
G. Kaindl ◽  
...  
Keyword(s):  
High Resolution ◽  
X Ray ◽  
Grating Monochromator

Upgrade of beamline BL08B at Taiwan Light Source from a photon-BPM to a double-grating SGM beamline

2015 ◽  
Vol 22 (5) ◽  
pp. 1312-1318 ◽  
Author(s):  
Jih-Young Yuh ◽  
Shan-Wei Lin ◽  
Liang-Jen Huang ◽  
Hok-Sum Fung ◽  
Long-Life Lee ◽  
...  
Keyword(s):  
Extreme Ultraviolet ◽  
Solar Physics ◽  
Emission Spectra ◽  
Ultraviolet Region ◽  
Extreme Ultraviolet Lithography ◽  
Beam Position ◽  
Ultraviolet Lithography ◽  
X Ray ◽  
Nano Fabrication ◽  
Grating Monochromator

During the last 20 years, beamline BL08B has been upgraded step by step from a photon beam-position monitor (BPM) to a testing beamline and a single-grating beamline that enables experiments to record X-ray photo-emission spectra (XPS) and X-ray absorption spectra (XAS) for research in solar physics, organic semiconductor materials and spinel oxides, with soft X-ray photon energies in the range 300–1000 eV. Demands for photon energy to extend to the extreme ultraviolet region for applications in nano-fabrication and topological thin films are increasing. The basic spherical-grating monochromator beamline was again upgraded by adding a second grating that delivers photons of energy from 80 to 420 eV. Four end-stations were designed for experiments with XPS, XAS, interstellar photoprocess systems (IPS) and extreme-ultraviolet lithography (EUVL) in the scheduled beam time. The data from these experiments show a large count rate in core levels probed and excellent statistics on background normalization in theL-edge adsorption spectrum.

Variable groove‐spaced grating monochromator for soft x‐ray emission spectroscopy at CAMD/LSU

1995 ◽  
Vol 66 (2) ◽  
pp. 1627-1629 ◽  
Author(s):  
A. Asfaw ◽  
D. L. Ederer ◽  
L. Zhou ◽  
L. Lin ◽  
K. Osborn ◽  
...  
Keyword(s):  
Emission Spectroscopy ◽  
X Ray ◽  
Grating Monochromator

Applications of VUV extra-focus mechanism: high-performance dual-mode monochromator from VUV to soft X-ray

2015 ◽  
Vol 22 (6) ◽  
pp. 1353-1358 ◽  
Author(s):  
Chaofan Xue ◽  
Yanqing Wu ◽  
Ying Zou ◽  
Lian Xue ◽  
Zhi Guo ◽  
...  
Keyword(s):  
High Performance ◽  
Vacuum Ultraviolet ◽  
Normal Incidence ◽  
Resolving Power ◽  
Dual Mode ◽  
Included Angle ◽  
X Ray ◽  
Line Spacing ◽  
Grating Monochromator ◽  
Mode Solution

A new monochromator scheme is presented in which an extra-focus constant-included-angle varied-line-spacing cylindrical-grating monochromator (extra-focus CIA-VCGM) is conveniently combined with a variable-included-angle varied-line-spacing plane-grating monochromator (VIA-VPGM). This dual-mode solution delivers high performance in the energy range from vacuum ultraviolet (VUV) to soft X-ray. The resolving power and the efficiency of this dual-mode grating monochromator are analyzed in detail based on realistic parameters. Comparisons with the commonly used variable-included-angle plane-grating monochromator and normal-incidence monochromator (VIA-PGM/NIM) hybrid monochromator are made.

Application of a Varied-Line-Spacing Grating in a High-Performance Soft X-ray Monochromator

1998 ◽  
Vol 5 (3) ◽  
pp. 246-251 ◽  
Author(s):  
Yonglian Yan ◽  
Eiji Shigemasa ◽  
Akira Yagishita
Keyword(s):  
High Resolution ◽  
Experimental Evaluation ◽  
High Performance ◽  
X Ray ◽  
Photon Factory ◽  
Line Spacing ◽  
Grating Monochromator

The design and experimental evaluation of a high-resolution varied-line-spacing-grating monochromator constructed at the Photon Factory are described. Various applications of a varied-line-spacing grating in a high-performance soft X-ray monochromator are discussed.

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