scholarly journals Ultrafast Temporal Evolution of Interatomic Coulombic Decay in NeKr Dimers

2022 ◽  
Author(s):  
Florian Trinter ◽  
Tsveta Miteva ◽  
Miriam Weller ◽  
Alexander Hartung ◽  
Martin Richter ◽  
...  
Keyword(s):  
Light Source ◽  
Energy Resolution ◽  
Temporal Evolution ◽  
Synchrotron Light ◽  
Singly Charged ◽  
Charged Ions

We investigate interatomic Coulombic decay in NeKr dimers after neon inner-valence photoionization [Ne+(2s-1)] using a synchrotron light source. We measure with energy resolution the two singly charged ions of the...

X-ray powder diffraction at the XRD1 beamline at LNLS

2016 ◽  
Vol 23 (6) ◽  
pp. 1501-1506 ◽  
Author(s):  
A. M. G. Carvalho ◽  
D. H. C. Araújo ◽  
H. F. Canova ◽  
C. B. Rodella ◽  
D. H. Barrett ◽  
...  
Keyword(s):  
Light Source ◽  
Powder Diffraction ◽  
Energy Resolution ◽  
The Other ◽  
Photon Flux ◽  
High Quality ◽  
X Ray ◽  
Transmission Geometry ◽  
Sample Position ◽  
Synchrotron Light

Various upgrades have been completed at the XRD1 beamline at the Brazilian synchrotron light source (LNLS). The upgrades are comprehensive, with changes to both hardware and software, now allowing users of the beamline to conduct X-ray powder diffraction experiments with faster data acquisition times and improved quality. The main beamline parameters and the results obtained for different standards are presented, showing the beamline ability of performing high-quality experiments in transmission geometry. XRD1 operates in the 5.5–14 keV range and has a photon flux of 7.8 × 109 photons s−1(with 100 mA) at 12 keV, which is one of the typical working energies. At 8 keV (the other typical working energy) the photon flux at the sample position is 3.4 × 1010 photons s−1and the energy resolution ΔE/E= 3 × 10−4.

Performance of the far-IR beamline of the 6 MeV tabletop synchrotron light source

2009 ◽  
Vol 16 (2) ◽  
pp. 299-306 ◽  
Author(s):  
Md. Monirul Haque ◽  
Hironari Yamada ◽  
Ahsa Moon ◽  
Mami Yamada
Keyword(s):  
Light Source ◽  
Optical System ◽  
Far Infrared ◽  
Beam Current ◽  
Small Ring ◽  
Thermal Source ◽  
Simulation Code ◽  
Dynamic Aperture ◽  
Electron Orbit ◽  
Synchrotron Light

The performance of the far-infrared (FIR) beamline of the 6 MeV tabletop synchrotron light source MIRRORCLE-6FIR dedicated to far-infrared spectroscopy is presented. MIRRORCLE-6FIR is equipped with a perfectly circular optical system (PhSR) placed around the 1 m-long circumference electron orbit. To illustrate the facility of this light source, the FIR output as well as its spectra were measured. The optimum optical system was designed by using the ray-tracing simulation code ZEMAX. The measured FIR intensity with the PhSR in place is about five times higher than that without the PhSR, which is in good agreement with the simulation results. The MIRRORCLE-6FIR spectral flux is compared with a standard thermal source and is found to be 1000 times greater than that from a typical thermal source at ∼15 cm−1. It is also observed that the MIRRORCLE-6FIR radiation has a highly coherent nature. The broadband infrared allows the facility to reach the spectral range from 10 cm−1 to 100 cm−1. MIRRORCLE-6FIR, owing to a large beam current, the PhSR mirror system, a large dynamic aperture and small ring energy, can deliver a bright flux of photons in the FIR/THz region useful for broadband spectroscopy.

Electron Capture, Ionization and Fragmentation in Collisions of Singly Charged Ions with C60

2004 ◽  
Vol 110 ◽  
pp. 325 ◽  
Author(s):  
P. Moretto-Capelle ◽  
A. Rentenier ◽  
D. Bordenave-Montesquieu ◽  
A. Bordenave-Montesquieu
Keyword(s):  
Electron Capture ◽  
Singly Charged ◽  
Charged Ions

Oxide, Hydroxide, and Doubly Charged Analyte Species in Inductively Coupled Plasma/Mass Spectrometry

1986 ◽  
Vol 40 (4) ◽  
pp. 434-445 ◽  
Author(s):  
M. A. Vaughan ◽  
G. Horlick
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Inductively Coupled ◽  
Doubly Charged Ions ◽  
Oxide Hydroxide ◽  
Plasma Mass Spectrometry ◽  
Singly Charged ◽  
Doubly Charged ◽  
Oxide Ions ◽  
Charged Ions

In inductively coupled plasma/mass spectrometry analyte, M may be distributed among several species forms including doubly charged ions (M2+), singly charged ions (M+), mono-oxide ions (MO+), and hydroxide ions (MOH+). Detailed data are presented for Ba to illustrate the dependence of the ion count of these species and their ratios (M2+/M+, MO+/M+, and MOH+/M+) on nebulizer flow rate, plasma power, and sampling depth. Although these data are representative of most elements, many form oxides to a much greater degree than Ba; data are presented for Ti, W, and Ce to illustrate this fact. These various analyte species are important in that serious interelement interferences can occur because of spectral overlap. An extensive pair of tables indicating potential spectral interferences caused by element oxide, hydroxide, and doubly charged ions is presented.

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