Deexcitation and recombination of excited ions involving doubly excited states in dense recombining plasma: Lithiumlike ion x-ray laser

1996 ◽  
Author(s):  
Takashi Fujimoto ◽  
Tetsuya Kawachi
Keyword(s):  
Excited States ◽  
X Ray ◽  
Doubly Excited States ◽  
Doubly Excited

M X-ray emission from low-energy, highly charged Taq+ (q = 45–49) ions colliding with neutral atoms due to singly and doubly excited states formed through single-electron capture

2002 ◽  
Vol 80 (8) ◽  
pp. 821-835 ◽  
Author(s):  
H Tawara ◽  
P Richard ◽  
U I Safronova ◽  
A A Vasilyev ◽  
M Stockli
Keyword(s):  
Excited States ◽  
Electron Capture ◽  
Single Electron ◽  
X Rays ◽  
Strong Electron ◽  
X Ray ◽  
Doubly Excited States ◽  
Single Electron Capture ◽  
Doubly Excited ◽  
Lower Energy Region

M X-rays have been observed from 1–40 keV/u 181Taq+ (q = 45–49) ions colliding with neutral Ar atoms under single collisions. The most dominant X-rays have been found to be due to transitions of 4p–3d and 4f–3d when the projectiles bring 3d-shell vacancies into collisions. Though much weaker, M X-rays also have been observed in collisions with Ta45+ ions that initially have no 3d-shell vacancy and are understood to originate from transitions of the doubly excited states 3d9nln'l' formed through strong electron–electron interactions after single-electron capture. The observed M X-ray spectra have been compared and reproduced nicely with the synthesized spectra. It has been confirmed that transitions of such doubly excited states also contribute to X-rays at the lower energy region observed even for higher charge ions with 3d vacancies. PACS Nos.: 32.30Rj, 32.70Cs, 32.80Rm, 34.70+e

scholarly journals Emission mechanism for the silicon He-α lines in a photoionization experiment

2021 ◽  
Vol 9 ◽  
Author(s):  
Bo Han ◽  
Feilu Wang ◽  
David Salzmann ◽  
Jiayong Zhong ◽  
Gang Zhao
Keyword(s):  
Excited States ◽  
Experimental Spectrum ◽  
Atomic Data ◽  
Simulated Spectrum ◽  
Emission Mechanism ◽  
X Ray ◽  
Doubly Excited States ◽  
Doubly Excited ◽  
Good Agreement

Abstract In this paper, we present a reanalysis of the silicon He- $\mathrm{\alpha}$ X-ray spectrum emission in Fujioka et al.’s 2009 photoionization experiment. The computations were performed with our radiative-collisional code, RCF. The central ingredients of our computations are accurate atomic data, inclusion of satellite lines from doubly excited states and accounting for the reabsorption of the emitted photons on their way to the spectrometer. With all these elements included, the simulated spectrum turns out to be in good agreement with the experimental spectrum.

Unexpected X-Ray Emission due to Formation of Bound Doubly Excited States

2000 ◽  
Vol 85 (26) ◽  
pp. 5559-5562 ◽  
Author(s):  
R. Schuch ◽  
S. Madzunkov ◽  
E. Lindroth ◽  
D. Fry
Keyword(s):  
Excited States ◽  
X Ray ◽  
Doubly Excited States ◽  
Doubly Excited

Excitation ofS1andS3Metastable Helium Atoms to Doubly Excited States

2009 ◽  
Vol 102 (15) ◽  
Author(s):  
M. Alagia ◽  
M. Coreno ◽  
H. Farrokhpour ◽  
P. Franceschi ◽  
A. Mihelič ◽  
...  
Keyword(s):  
Excited States ◽  
Helium Atoms ◽  
Doubly Excited States ◽  
Doubly Excited
Sign in / Sign up

Export Citation Format

Share Document