Details

Autor(en) / Beteiligte

• Pelenovich, V.
• Zeng, X.M.
• Ieshkin, A.
• Zuo, W.B.
• Chernysh, V.S.
• Tolstogouzov, A.B.
• Yang, B.
• Fu, D.J.

Titel

Size determination of Ar clusters formed in conical nozzles

Ist Teil von

• Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 2019-07, Vol.450, p.131-134

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2019

Link zum Volltext

Quelle

ScienceDirect

Beschreibungen/Notizen

• In this paper, we study time-of-flight (TOF) mass-spectra of the Ar cluster beams obtained by nozzles with different diameters, at different source pressures, and ionizing electron energies. The TOF mass-spectra are measured at minimal electron energy, since there is a strong influence on the mass-spectra by the multiple ionization of the clusters. The cluster size derived from TOF mass-spectra is considered as a function of the condensation parameter Γ*. Attenuation of the cluster current due to collisions with residual gas is also studied. An estimation of the relative cluster size by the current attenuation is proposed.