scholarly journals Selective Orbital Imaging of Excited States with X-Ray Spectroscopy: The Example of α -MnS

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
A. Amorese ◽  
B. Leedahl ◽  
M. Sundermann ◽  
H. Gretarsson ◽  
Z. Hu ◽  
...  
Keyword(s):  
Excited States ◽  
X Ray ◽  
Orbital Imaging

Efficient Basis Sets for Core-Excited States Motivated by Slater’s Rules

2022 ◽  
Author(s):  
Jin Qian ◽  
Ethan Crumlin ◽  
David Prendergast
Keyword(s):  
Excited States ◽  
Atoms In Molecules ◽  
Basis Sets ◽  
Photoemission Spectroscopy ◽  
Atomic Core ◽  
X Ray ◽  
Characterization Technique

X-ray photoemission spectroscopy is a commonly applied characterization technique that probes the local chemistry of atoms in molecules and materials via the photoexcitation of electrons from atomic core orbitals. These...

LX-ray Spectra and E2 Internal Conversion Coefficients in Radon and Radium

1973 ◽  
Vol 28 (10) ◽  
pp. 1635-1641 ◽  
Author(s):  
A. G. de Pinho ◽  
M. Weksler
Keyword(s):  
Excited States ◽  
Internal Conversion ◽  
Electric Quadrupole ◽  
Alpha Decay ◽  
X Ray ◽  
Internal Conversion Coefficients ◽  
Conversion Coefficients ◽  
Good Agreement

The X-ray spectra resulting from the internal conversion of electric quadrupole transitions following the alpha decay of Th230 and Ra226 were analysed with a Si (Li) spectrometer. From the knowledge of the Coster-Kronig and fluorescence yields, the internal conversion coefficients of the E2 transitions from the first excited states in Ra226 and Rn222 could be deduced. Results are in good agreement with theoretical values.

scholarly journals X-ray laser lines in nickel-like erbium

2016 ◽  
Vol 94 (8) ◽  
pp. 705-711
Author(s):  
Wessameldin S. Abdelaziz
Keyword(s):  
Ionization Potential ◽  
Excited States ◽  
Ground State ◽  
Energy Levels ◽  
Single Electron ◽  
Electron Densities ◽  
X Ray ◽  
Electron Excited States

Energy levels of 249 excited levels in nickel-like erbium are calculated using the 3s23p63d10 as a ground state and the single electron excited states from n = 3 to n = 4, 5 orbitals, calculations have been performed using FAC code (Gu. Astrophys. J. 582, 1241 (2003). doi:10.1086/344745 ). The populations are calculated over electron densities from 1020 to 1023 cm−3 and electron temperatures 1/2, 3/4 of the ionization potential of Ni-like Er. The gain coefficients of the transitions are calculated.

scholarly journals Polarized Resonant Inelastic X-Ray Scattering as an Ultrafine Probe of Excited States ofLa2CuO4

2006 ◽  
Vol 96 (7) ◽  
Author(s):  
Abhay Shukla ◽  
Matteo Calandra ◽  
Munetaka Taguchi ◽  
Akio Kotani ◽  
György Vankó ◽  
...  
Keyword(s):  
Excited States ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

scholarly journals Dyson orbitals within the fc-CVS-EOM-CCSD framework: theory and application to X-ray photoelectron spectroscopy of ground and excited states

2020 ◽  
Vol 22 (5) ◽  
pp. 2693-2703 ◽  
Author(s):  
Marta L. Vidal ◽  
Anna I. Krylov ◽  
Sonia Coriani
Keyword(s):  
Excited States ◽  
Photoelectron Spectroscopy ◽  
Equation Of Motion ◽  
Coupled Cluster ◽  
Ionization Energies ◽  
X Ray

Ionization energies and Dyson orbitals within frozen-core core–valence separated equation-of-motion coupled cluster singles and doubles (fc-CVS-EOM-CCSD) enable efficient and reliable calculations of standard XPS and of UV-pump/XPS probe spectra.

scholarly journals Opacity in orbital X-ray

2020 ◽  
pp. 102490792094550
Author(s):  
Sunny Chi Lik Au ◽  
Simon Tak Chuen Ko
Keyword(s):  
Computed Tomography ◽  
Head Injury ◽  
Traumatic Event ◽  
History Taking ◽  
Radiological Findings ◽  
X Ray ◽  
Post Traumatic ◽  
Orbital Imaging

X-ray interpretation is a fundamental skill in emergency practice. Post-operative eyes with implants may sometimes pose clinical challenges on post-traumatic event diagnosis and differentiation from organ wasting. Recommended by authorities and guidelines, computed tomography is indicated for evaluation of head injury cases, yet incidental abnormal findings such as radiopacity in the eyeball might create dilemma to diagnosis. History taking and clinical examinations are essential for the interpretation of the radiopacity in orbital imaging. Subtle and uncommon radiological findings of the eye will be discussed.

Apparatus for the measurement of the electronic excited-state structure of single crystals using X-ray diffraction

1994 ◽  
Vol 27 (5) ◽  
pp. 727-732 ◽  
Author(s):  
M. A. White ◽  
M. R. Pressprich ◽  
P. Coppens ◽  
D. D. Coppens
Keyword(s):  
Excited States ◽  
Modulation Method ◽  
State Structure ◽  
X Ray Diffraction ◽  
Time Resolved ◽  
X Ray ◽  
Electronic Excited States ◽  
Structure Factors ◽  
Counting Statistics ◽  
Mechanical Chopper

Instrumentation for measuring the X-ray diffraction pattern of optically excited crystals is described. The experiment uses a high-power (~1 W) laser and a single-crystal diffractometer equipped with a helium cryostat (T < 70 K). The laser beam is modulated by a mechanical chopper and the diffraction signal gated in synchronization with the chopper phase. The modulation method is capable of observing small changes (down to about 0.01%) in the structure factors upon excitation of a fraction of the molecules in the crystal, given adequate counting statistics. The technique can be used for relatively long lived electronic excited states (τ ≃ 0.1–10 ms). The optical system is also suitable for time-resolved measurements using the time structure of synchrotron radiation.

Electronic structure of atomic adsorbates from x-ray-absorption spectroscopy: Threshold effects and higher excited states

1993 ◽  
Vol 48 (4) ◽  
pp. 2632-2641 ◽  
Author(s):  
E. O. F. Zdansky ◽  
A. Nilsson ◽  
H. Tillborg ◽  
O. Björneholm ◽  
N. Mårtensson ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Excited States ◽  
Absorption Spectroscopy ◽  
Threshold Effects ◽  
X Ray ◽  
X Ray Absorption ◽  
Higher Excited States

Excited states in yttrium orthovanadate studied by electron-energy-loss spectroscopy and x-ray photoelectron spectroscopy

1980 ◽  
Vol 22 (10) ◽  
pp. 4698-4709 ◽  
Author(s):  
I. M. Curelaru ◽  
E. Suoninen ◽  
P. Ahlqvist ◽  
P. Apell ◽  
E. Minni ◽  
...  
Keyword(s):  
Energy Loss ◽  
Excited States ◽  
Electron Energy ◽  
Electron Energy Loss Spectroscopy ◽  
Photoelectron Spectroscopy ◽  
X Ray ◽  
Electron Energy Loss
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