RT info:eu-repo/semantics/article
T1 Revisiting the stark width and shift of he II Pα
A1 Stollberg, Christine
A1 Stambulchik, Evgeny
A1 Duan, Bin
A1 Gigosos Pérez, Marco Antonio
A1 González Herrero, Diego
A1 Iglesias, Carlos
A1 Mossé, Caroline
K1 Stark width and shift
K1 Helium Paschen-α
K1 Plasma density diagnostics
K1 Lineshape code comparison
K1 22 Física
AB We report experimental determination of plasma-induced Stark widths and shifts of theHe II Pα line and a comparison of the results with calculations performed by several computationalapproaches. The measurements were carried out in a small compressing plasma channel device,reaching electron densities in excess of 1018 cm−3 and temperatures of a few eV. The experimentaldata are in a good agreement with some previously published studies. However, the measuredrelation between the Stark shift and width could not be reproduced by either of the codes, andthis disagreement is not yet resolved. This suggests the existence of an additional effect that is notaccounted for in the present models and leads to a larger than expected Stark shift of the He II Pα line.
PB MDPI
YR 2018
FD 2018
LK https://uvadoc.uva.es/handle/10324/57383
UL https://uvadoc.uva.es/handle/10324/57383
LA eng
NO Atoms, 2018, vol. 6, n. 2, p. 23
NO Producción Científica
DS UVaDOC
RD 16-abr-2025