Performance of the BL03U beamline at SSRF

2020 ◽  
Vol 27 (5) ◽  
pp. 1388-1394
Author(s):  
Z. P. Sun ◽  
Z. H. Liu ◽  
Z. T. Liu ◽  
W. L. Liu ◽  
F. Y. Zhang ◽  
...  

The vacuum ultraviolet beamline BL03U with a photon energy range from 7 eV upwards has been constructed at the 3.5 GeV Shanghai Synchrotron Radiation Facility. Equipped with an APPLE-Knot undulator, this beamline is dedicated to angle-resolved photoemission spectroscopy. An energy-resolving power of higher than 4.6 × 104 has been achieved in the photon energy range 21.6–48 eV, which is almost the same as the theoretical estimation.

1989 ◽  
Vol 44 (1) ◽  
pp. 17-20 ◽  
Author(s):  
G. Hagenow ◽  
H.-W. Jochims ◽  
J. Sawatzki ◽  
R. Minkwitz ◽  
H. Baumgärtel

Abstract The ionization potential of CH3SCF3 and the appearance potentials of fragment ions have been measured in the photon energy range 9 -19 eV using synchrotron, radiation. From these results thermochemical data of CH3SCF3, CH3SCF3+ and fragment ions have been evaluated.


1968 ◽  
Vol 46 (16) ◽  
pp. 1769-1774 ◽  
Author(s):  
Sarma S. Vishnubhatla ◽  
John C. Woolley

Reflectance spectra in the photon energy range 3.5–7.5 eV have been determined for the compounds GaP, InP, GaAs, InAs, AlSb, GaSb, and InSb, and the positions of the E2, E2 + Δ2, E2 + δ, and four E1′ peaks were observed in most cases. The values of the spin–orbit splittings Δ2, Δ1, ΔL3v, and ΔL3c from the experimental data are found to be in good agreement with the values calculated by Cardona from k∙p analysis.


1998 ◽  
Vol 5 (3) ◽  
pp. 777-779 ◽  
Author(s):  
Eiji Shigemasa ◽  
Akio Toyoshima ◽  
Yonglian Yan ◽  
Tatsuji Hayaishi ◽  
Koichi Soejima ◽  
...  

The design and performance of a 24 m high-resolution spherical grating monochromator (H-SGM) for the undulator beamline (BL-16B) at the Photon Factory are described. With three interchangeable gratings of 400, 900 and 2000 lines mm−1, the H-SGM is designed to cover the photon energy range 40–600 eV. With a resolving power of approximately 2000 in the photon energy range 40–530 eV, more than 1011 photons s−1 have been measured. The best resolutions obtained so far, at a substantially lower photon flux, are greater than 10 000 at 250 eV and 8000 at 400 eV


2020 ◽  
Vol 27 (4) ◽  
pp. 1080-1091 ◽  
Author(s):  
Kuno Kooser ◽  
Antti Kivimäki ◽  
Paavo Turunen ◽  
Rainer Pärna ◽  
Liis Reisberg ◽  
...  

Since spring 2019 an experimental setup consisting of an electron spectrometer and an ion time-of-flight mass spectrometer for diluted samples has been available for users at the FinEstBeAMS beamline of the MAX IV Laboratory in Lund, Sweden. The setup enables users to study the interaction of atoms, molecules, (molecular) microclusters and nanoparticles with short-wavelength (vacuum ultraviolet and X-ray) synchrotron radiation and to follow the electron and nuclear dynamics induced by this interaction. Test measurements of N2 and thiophene (C4H4S) molecules have demonstrated that the setup can be used for many-particle coincidence spectroscopy. The measurements of the Ar 3p photoelectron spectra by linear horizontal and vertical polarization show that angle-resolved experiments can also be performed. The possibility to compare the electron spectroscopic results of diluted samples with solid targets in the case of Co2O3 and Fe2O3 at the Co and Fe L 2,3-absorption edges in the same experimental session is also demonstrated. Because the photon energy range of the FinEstBeAMS beamline extends from 4.4 eV up to 1000 eV, electron, ion and coincidence spectroscopy studies can be executed in a very broad photon energy range.


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