Abstract
We present spectroscopic measurements of rate coefficients for the population of the ArI 6d[3/2]o and 8s[3/2]o states by two electron transfer from sputtered Cu to Ar2+ in an ECR microwave discharge. Rate coefficients are obtained from absolutely measured line intensities using a modified corona model. Though the binding energies of these states differ by 8 meV only the probability of populating the 6d level exceeds by a factor of ten that of populating the 8s level. This is attributed to an energy resonance between the two electrons when promoting to their final levels. The cross section for this two electron transfer comes out to be of the order of 10−15 to 10−14 cm2.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Bernhardi, K., Fuchs, G., Goldman, M.A., Herbert, H.C., Obermann, D., Walcher, W., Wiesemann, K.: Plasma Phys.18, 77 (1976)
Bernhardi, K.: Messung der kontinuierlichen Röntgenstrahlung und Bestimmung der Energieverteilungsfunktion für hochenergetische Elektronen eines EZR-Plasmas. Dissertation Bochum (in German) (1980)
Bernhardi, K., Wiesemann, K.: Plasma Phys24, 867 (1982)
Bernhardi, K., Brinkmann, H.P.: Stochastische Beschleunigung von Elektronen im Bereich der Elektron-Zyklotron-Resonanz im inhomogenen Magnetfeld. SFB-Report 88-05-178 Bochum/Jülich (in German, unpublished) (1988)
Blanke, H.: Kassel (1989) Private communication
Drake, R.P., Moos, H.W.: Nucl. Fusion20, 599 (1980)
Gilbert, D.A., Peterson, C.W., Reed, K.J., Smith, W.W.: J. Phys. B: Atom. Molec. Phys.16, 81 (1983)
Hasted, J.B.: Adv. At. Mol. Phys.15, 205 (1979)
Jettkant, B.: Absolute Kalibrierung eines Si(Li)-Detektors für Röntgendiagnostik am Plasma. Diplomarbeit Bochum (in German, unpublished) (1990)
Jogwich, M.: Selektive Besetzung hochangeregter ArI-Zustände durch einen Zweielektronentransfer zwischen Cu und ArIII in einer EZR-Mikrowellenentladung. Dissertation Bochum (in German) (1989)
Katsonis, K., Drawin, H.W.: J. Quant. Spectros. Radiat. Transfer23, 1 (1980)
Köhler, H., Frank, M., Huber, B.A., Wiesemann, K.: Nucl. Instrum. Methods B23, 186 (1987)
Koslowski, H.R.: Bochum (1988) Private communication
Külshammer, M.: Bestimmung von Elektronenverteilungsfunktionen aus Gegenfeldanalysator-Kennlinien. Diplomarbeit Bochum (in German, unpublished) (1989)
Marlinghaus, E.H.: a) Messungen zur Bestimmung der Ladungszustandsverteilung in einem EZR-Plasma mittels VUV-Spektroskopie. Dissertation Bochum (in German) (1984); Marlinghaus, E.H.: b) Calculation of rate coefficients for electron impact excitation of atoms and ions. SFB-Report 84-05-120 Bochum/Jülich (unpublished) (1984)
Marlinghaus, E.H., Huber, B.A., Wiesemann, K.: Ann. Israel Phys. Soc.6, 94 (1983)
Mausbach, M., Wiesemann, K.: Plasma Physics32, 281 (1990)
Niehaus, A.: J. Phys. B19, 2925 (1986)
Stolterfoht, N., Havener, C.C., Phaneuf, R.A., Swenson, J.K., Shafroth, S.M., Meyer, F.W.: Phys. Rev. Lett.57, 74 (1986)
van Regemorter, H.: Astrophys. J.136, 906 (1962)
Wagner, G.: Messung des hochenergetischen Bremskontinuums einer EZR-Entladung mittels NaJ(Tl) Detektor. SFB-Report 86-05-146 Bochum/Jülich (in German, unpublished) (1986)
Wiese, W.L., Martin, G.A.: Wavelengths and transition probabilities for atoms and atomic ions. NSRDS-NBS 68, Washington (1980) p 363–365
Wiese, W.L., Smith, M.W., Miles, B.M.: Atomic Transition Probabilities. Vol. II, NSRDS-NBS 22, Washington (1969) p 187–200
Ziemann, K.: Messung des niederenergetischen Bremsstrahlungskontinuums eines EZR-Plasmas. SFB-Report 84-05-122 Bochum/Jülich (in German, unpublished) (1984)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Jogwich, M., Huber, B.A. & Wiesemann, K. A spectroscopic study of double electron transfer from Cu to Ar III in an ECR-microwave discharge. Z Phys D - Atoms, Molecules and Clusters 17, 171–179 (1990). https://doi.org/10.1007/BF01437897
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF01437897