Reflectance spectra of some III–V compounds in the vacuum ultraviolet

1968 ◽  
Vol 46 (16) ◽  
pp. 1769-1774 ◽  
Author(s):  
Sarma S. Vishnubhatla ◽  
John C. Woolley
Keyword(s):  
Experimental Data ◽  
Energy Range ◽  
Photon Energy ◽  
Vacuum Ultraviolet ◽  
Reflectance Spectra ◽  
Photon Energy Range ◽  
Spin Orbit ◽  
Good Agreement

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.

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 ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Energy Range ◽  
Photon Energy ◽  
Vacuum Ultraviolet ◽  
Resolving Power ◽  
Photon Energy Range ◽  
Photoemission Spectroscopy ◽  
Theoretical Estimation ◽  
Shanghai Synchrotron Radiation Facility ◽  
Angle Resolved Photoemission Spectroscopy

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.

PHOTOPRODUCTION OF π0π+ ON THE PROTON AND DEUTERON AT Eγ = 0.7 - 1.5 GeV

2010 ◽  
Vol 19 (05n06) ◽  
pp. 1197-1204 ◽  
Author(s):  
A. MUSHKARENKOV ◽  
V. BELLINI ◽  
J. P. BOCQUET ◽  
L. CASANO ◽  
A. D'ANGELO ◽  
...  
Keyword(s):  
Total Cross Section ◽  
Energy Range ◽  
Invariant Mass ◽  
Cross Section ◽  
Photon Energy ◽  
Mass Spectra ◽  
Photon Energy Range ◽  
Free Proton ◽  
Preliminary Results ◽  
Good Agreement

The preliminary results obtained by the GRAAL collaboration for the π0π+ photoproduction on the free and quasi-free proton (deuteron) at Eγ = 0.7-1.5 GeV are presented. The total cross section of the γp → π0π+n reaction and invariant mass spectra for the π+π0, π+n and π0n systems are presented in the photon energy range from 0.7 to 1.5 GeV. These results are in good agreement with the 2π-MAID calculations.

scholarly journals Gas-phase endstation of electron, ion and coincidence spectroscopies for diluted samples at the FinEstBeAMS beamline of the MAX IV 1.5 GeV storage ring

2020 ◽  
Vol 27 (4) ◽  
pp. 1080-1091 ◽  
Author(s):  
Kuno Kooser ◽  
Antti Kivimäki ◽  
Paavo Turunen ◽  
Rainer Pärna ◽  
Liis Reisberg ◽  
...  
Keyword(s):  
Energy Range ◽  
Photon Energy ◽  
Vacuum Ultraviolet ◽  
Photoelectron Spectra ◽  
Photon Energy Range ◽  
Experimental Session ◽  
Nuclear Dynamics ◽  
Spectroscopy Studies ◽  
Interaction Test ◽  
Coincidence Spectroscopy

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.

Transmittance performance of polypropylene, poly-para-xylylene and polycarbonate films in the photon energy range from 1 eV to 10 keV

1994 ◽  
Author(s):  
Karl-Heinz Stephan ◽  
Claus Reppin ◽  
Hans-Joerg Maier ◽  
Dagmar Frischke ◽  
Detlef Fuchs ◽  
...  
Keyword(s):  
Energy Range ◽  
Photon Energy ◽  
Photon Energy Range

VUV photoionization of acetamide studied by electron/ion coincidence spectroscopy in the 8–24 eV photon energy range

2012 ◽  
Vol 393 (1) ◽  
pp. 107-116 ◽  
Author(s):  
Martin Schwell ◽  
Yves Bénilan ◽  
Nicolas Fray ◽  
Marie-Claire Gazeau ◽  
Et. Es-Sebbar ◽  
...  
Keyword(s):  
Energy Range ◽  
Photon Energy ◽  
Photon Energy Range ◽  
Vuv Photoionization ◽  
Coincidence Spectroscopy

OSL in NaCl vs. TL in LiF for absorbed dose measurements and radiation quality assessment in the photon energy range 20 keV to 1.3 MeV

2018 ◽  
Vol 112 ◽  
pp. 11-15 ◽  
Author(s):  
Maria Christiansson ◽  
Christian Bernhardsson ◽  
Therése Geber-Bergstrand ◽  
Sören Mattsson ◽  
Christopher L. Rääf
Keyword(s):  
Energy Range ◽  
Quality Assessment ◽  
Photon Energy ◽  
Absorbed Dose ◽  
Photon Energy Range ◽  
Radiation Quality ◽  
Dose Measurements

scholarly journals Energy Dependence of Total Cross Sections for Reactions with 4, 6he, 6, 7, 9li Nuclei

KnE Energy ◽  
2018 ◽  
Vol 3 (1) ◽  
pp. 21
Author(s):  
Yu Penionzhkevich ◽  
Yu Sobolev ◽  
V Samarin ◽  
M Naumenko
Keyword(s):  
Experimental Data ◽  
Energy Range ◽  
Numerical Solution ◽  
Energy Dependence ◽  
Cross Sections ◽  
Beam Energy ◽  
Microscopic Analysis ◽  
Time Dependent ◽  
Total Cross Sections ◽  
Good Agreement

The paper presents the results of measurement of the total cross sections for reactions 4,6He + Si and 6,7,9Li + Si in the beam energy range 5−50 A⋅MeV. The enhancements of the total cross sections for reaction 6He + Si compared with reaction 4He + Si, and 9Li + Si compared with reactions 6,7Li + Si have been observed. The performed microscopic analysis of total cross sections for reactions 6He + Si and 9Li + Si based on numerical solution of the time-dependent Schrödinger equation for external neutrons of projectile nuclei 6He and 9Li yielded good agreement with experimental data.

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