Photoionization and electron-impact ionization of Ar5+
Absolute cross sections for photoionization andelectron-impact Photionization of Ar5+ have been measuredusing twodifferent interacting-beams setups. The spectra consist of measurementsof the yield of products dueto single ionization as a function ofelectron or photon energy. In addition, absolute photoionization andelectron-impact ionization cross sections were measured to normalize themeasured Ar6+ product-ion yield spectra. In the energy range from 90 to111 eV, both electron-impact ionization and photoionization of Ar5+aredominated by indirect 3s subshell excitation-autoionization. In theenergy range from 270 to 285 eV, resonances due to 2p-3dexcitation-autoionization are prominent in the photoionization spectrum.In the range from 225 to 335 eV, an enhancement due to 2p-nl (n>2>excitations are evident in the electron-impactionization cross section.The electron and photon impact data show some features due to excitationof the same intermediate autoionizing states.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Advanced Light Source(ALS)
- Sponsoring Organization:
- USDOE Director. Office of Science. Basic EnergySciences
- DOE Contract Number:
- DE-AC02-05CH11231
- OSTI ID:
- 932483
- Report Number(s):
- LBNL-62916; PLRAAN; R&D Project: 458112; BnR: KC0204016; TRN: US0803546
- Journal Information:
- Physical Review A, Vol. 75; Related Information: Journal Publication Date: 06/27/2007; ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
Similar Records
Photoionization and electron-impact ionization of Kr{sup 5+}
Inner-valence photoionization of O({sup 1}D): Experimental evidence for the 2s{sup 2}2p{sup 4}({sup 1}D){yields}2s{sup 1}2p{sup 5}({sup 1}P) transition