An investigation of Li− photodetachment in the vicinity of the 22 + ϵs threshold

Autor:	C.Y. Tang, G.D. Alton, J. Dellwo, D. J. Pegg, Y. Liu
Rok vydání:	1993
Předmět:	Nuclear and High Energy Physics Range (particle radiation) Wavelength Chemistry Electron affinity media_common.quotation_subject Electron Atomic physics Spectroscopy Instrumentation Asymmetry Beam (structure) media_common
Zdroj:	Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 79:162-165
ISSN:	0168-583X
DOI:	10.1016/0168-583x(93)95314-u
Popis:	A crossed laser-ion beam apparatus has been used to determine the electron affinity of Li and to measure cross sections for single photon-single electron detachment from Li − . Photoelectron production via the resolved 2 Sϵp and 2 Pϵs channels has been studied in detail in the vicinity of the 2 2 P+ϵs threshold. The electron affinity of Li − was found to be 617.6 ± 0.2 meV by threshold-photodetachment spectroscopy. Absolute cross sections and asymmetry parameters are also measured at discrete wavelengths in the spectral range of 1.78–2.50 eV.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::03d550ddcca611638d866d3f38f95f88 https://doi.org/10.1016/0168-583x(93)95314-u Zobrazit plný text záznamu