Messung des Wirkungsquerschnitts f�r die Anregung der Na-D-Linie bei Na-Ionensto� auf Helium

Maurer, W.; Mehnert, Karl

doi:10.1007/bf01339139

Cited by 7 publications

(8 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Our observations show an oscillating structure of the cross section which was not seen in Ref. [41]. Our results for the energy dependence with a pronounced oscillatory structure on the excitation cross section of the helium atom are the same as in Ref.…”

Section: Results Of Experimental Measurementssupporting

confidence: 88%

“…This is also the explanation of the discrepancy between the magnitudes of our results and the results obtained in Ref. [41], (curve 3b) since the data from Ref. [41] were used in Ref.…”

Section: Results Of Experimental Measurementscontrasting

confidence: 83%

“…The discrepancies, as compared with Ref. [41], are due to the considerable experimental uncertainties introduced by the photographic method employed in Ref. [41] to record the radiation.…”

Section: Results Of Experimental Measurementsmentioning

confidence: 84%

“…Comparison of our data for the excitation function for the sodium doublet and for the helium atom with the results reported in Refs. [28,41] shows, that there is a considerable discrepancy in magnitude of the excitation cross sections. Moreover, significant discrepancies are observed also in the energy dependence of the excitation cross section for the sodium doublet with the exception of the position of the maximum at E = 6.5 keV.…”

Section: Results Of Experimental Measurementsmentioning

confidence: 99%

“…[41], are due to the considerable experimental uncertainties introduced by the photographic method employed in Ref. [41] to record the radiation. This is also the explanation of the discrepancy between the magnitudes of our results and the results obtained in Ref.…”

Section: Results Of Experimental Measurementsmentioning

confidence: 99%

See 4 more Smart Citations

Charge-exchange, ionization and excitation in low-energy Li$^{+}-$ Ar, K$^{+}-$ Ar, and Na$^{+}-$He collisions

Lomsadze,

Gochitashvili,

Kezerashvili

et al. 2016

Preprint

View full text Add to dashboard Cite

Absolute cross sections are measured for charge-exchange, ionization, and excitation within the same experimental setup for the Li + −Ar, K + − Ar, and Na + − He collisions in the ion energy range 0.5 − 10 keV. Results of our measurements along with existing experimental data and the schematic correlation diagrams are used to analyze and determine the mechanisms for these processes. The experimental results show that the charge-exchange processes are realized with high probabilities and electrons are predominately captured in ground states. The cross section ratio for charge exchange, ionization and excitation processes roughly attains the value 10 : 2 : 1, respectively. The contributions of various partial inelastic channels to the total ionization cross sections are estimated and a primary mechanism for the process is defined. The energy-loss spectrum, in addition, is applied to estimate the relative contribution of different inelastic channels and to determine the mechanisms for the ionization and for some excitation processes of Ar resonance lines for the K + −Ar collision system. The excitation function for the helium, as well as for the sodium doublet lines for the Na + −He collision system, reveals some unexpected features and a mechanism to explain this observation is suggested.

show abstract

Section: Results Of Experimental Measurementssupporting

confidence: 88%

“…This is also the explanation of the discrepancy between the magnitudes of our results and the results obtained in Ref. [41], (curve 3b) since the data from Ref. [41] were used in Ref.…”

Section: Results Of Experimental Measurementscontrasting

confidence: 83%

“…The discrepancies, as compared with Ref. [41], are due to the considerable experimental uncertainties introduced by the photographic method employed in Ref. [41] to record the radiation.…”

Section: Results Of Experimental Measurementsmentioning

confidence: 84%

Section: Results Of Experimental Measurementsmentioning

confidence: 99%

Section: Results Of Experimental Measurementsmentioning

confidence: 99%

See 3 more Smart Citations