Observation of doubly excited Rydberg states of N2O by positive ion–negative ion coincidence spectroscopy

1994 ◽  
Vol 100 (12) ◽  
pp. 8817-8824 ◽  
Author(s):  
Hiroaki Yoshida ◽  
Koichiro Mitsuke
Keyword(s):  
Rydberg States ◽  
Negative Ion ◽  
Doubly Excited ◽  
Positive Ion ◽  
Coincidence Spectroscopy

Negative and Neutral Autoionizing States Detected in the Electroionization Curve in CO

1973 ◽  
Vol 51 (20) ◽  
pp. 2202-2208 ◽  
Author(s):  
R. Carbonneau ◽  
P. Marmet
Keyword(s):  
Excited States ◽  
Rydberg States ◽  
Negative Ion ◽  
Electron Transmission ◽  
Doubly Excited States ◽  
Doubly Excited ◽  
First Time ◽  
Autoionizing States

Negative ion resonances and neutral Rydberg states having the A2Π and B2Σ+ states of CO+ as limits are reported for the first time in the electroionization curve of CO. Moreover, new doubly excited states of CO are observed around 21 eV. The electroionization is compared with photoionization, photoabsorption, and electron transmission when data are available.

Positive ion ? negative ion coincidence spectroscopy of O2 and H2 using synchrotron radiation

1993 ◽  
Vol 27 (3) ◽  
pp. 267-273 ◽  
Author(s):  
Koichiro Mitsuke ◽  
Hiroaki Yoshida ◽  
Hideo Hattori
Keyword(s):  
Synchrotron Radiation ◽  
Negative Ion ◽  
Positive Ion ◽  
Coincidence Spectroscopy

scholarly journals Negative-ion/positive-ion coincidence spectroscopy with a novel spectrometer

2015 ◽  
Vol 635 (11) ◽  
pp. 112123
Author(s):  
Christian Stråhlman ◽  
Rami Sankari ◽  
Antti Kivimäki ◽  
Robert Richter ◽  
Marcello Coreno ◽  
...  
Keyword(s):  
Negative Ion ◽  
Positive Ion ◽  
Coincidence Spectroscopy

scholarly journals Negative-ion/positive-ion coincidence spectroscopy as a tool to identify anionic fragments: The case of core-excited CHF3

2020 ◽  
Vol 55 (5) ◽  
pp. e4487
Author(s):  
Antti Kivimäki ◽  
Christian Stråhlman ◽  
Rami Sankari ◽  
Robert Richter
Keyword(s):  
Negative Ion ◽  
Positive Ion ◽  
Coincidence Spectroscopy

Note on radiationless transitions involving three-body collisions

1936 ◽  
Vol 32 (3) ◽  
pp. 482-485 ◽  
Author(s):  
R. A. Smith
Keyword(s):  
Continuous Spectrum ◽  
Negative Ions ◽  
Bound State ◽  
Excess Energy ◽  
Negative Ion ◽  
Positive Ions ◽  
Continuous State ◽  
Direct Formation ◽  
Three Body ◽  
Positive Ion

When an electron makes a transition from a continuous state to a bound state, for example in the case of neutralization of a positive ion or formation of a negative ion, its excess energy must be disposed of in some way. It is usually given off as radiation. In the case of neutralization of positive ions the radiation forms the well-known continuous spectrum. No such spectrum due to the direct formation of negative ions has, however, been observed. This process has been fully discussed in a recent paper by Massey and Smith. It is shown that in this case the spectrum would be difficult to observe.

scholarly journals Selective negative-ion formation from core-valence doubly excited states of the water molecule

2018 ◽  
Vol 98 (5) ◽  
Author(s):  
Christian Stråhlman ◽  
Bruno Moog ◽  
Emelie Ertan ◽  
Michael Odelius ◽  
Antti Kivimäki ◽  
...  
Keyword(s):  
Water Molecule ◽  
Excited States ◽  
Negative Ion ◽  
Doubly Excited States ◽  
Ion Formation ◽  
Doubly Excited

Semiclassical study of He− doubly excited Rydberg states

1991 ◽  
Vol 170 (2) ◽  
pp. 447-461 ◽  
Author(s):  
Z. Dohčević ◽  
P. Grujić ◽  
J. Jovanović-Kurepa
Keyword(s):  
Rydberg States ◽  
Doubly Excited
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