A capillary discharge tube for the production of intense VUV resonance radiation
- 1 January 1983
- journal article
- Published by IOP Publishing in Journal of Physics E: Scientific Instruments
- Vol. 16 (1) , 74-82
- https://doi.org/10.1088/0022-3735/16/1/015
Abstract
Design and operational characteristics of a line source with very high intensity in the vacuum UV are described. The source generates rare-gas resonance radiation in a low-pressure, cold-cathode, DC glow discharge up to 200 mA. The windowless lamp is differentially pumped and can be installed inside a vacuum chamber. During operation it is water cooled and can be mildly baked because it contains metal seals only. In a light beam of 2.5 mm diameter the photon flux for the strongest HeI and NeI emission line has been measured to be nearly 1013s-1and one order of magnitude less for the strongest HeII, NeII and ArI lines. The photon intensities obtained are compared with values from the literature. The lamp has been used to investigate atomic and molecular photoionisation simultaneously resolved with respect to photon and electron energy, electron emission angle, and spin. To show the performance, angular-distribution results of photoelectron intensities for nitrogen molecules (X2 Sigma g+, A2 Pi u, B2 Sigma u+) at 58.43 nm are presented.Keywords
This publication has 36 references indexed in Scilit:
- “Charged particle oscillator” He(II) photon sourceJournal of Electron Spectroscopy and Related Phenomena, 1979
- Charged particle oscillator and hollow cathode He(II) lamps for high resolution photoelectron studies: C 2 s spectrum of CH 4 and Hg 5 d5/2 spectrum of (CH 3) 2HgJournal of Electron Spectroscopy and Related Phenomena, 1978
- Angular distribution of photoelectrons at 584 Å using polarized radiationJournal of Electron Spectroscopy and Related Phenomena, 1976
- An ultrahigh vacuum electron spectrometer for surface studiesJournal of Electron Spectroscopy and Related Phenomena, 1974
- New developments in ESCA-instrumentationJournal of Electron Spectroscopy and Related Phenomena, 1974
- Partial photoionization cross sections for Hg between 600 and 250 Å. Effect of spin-orbit coupling on thebranching ratio of HgPhysical Review A, 1974
- Angular Distribution of the Photoelectron Spectra for Ar, Kr, Xe, H2, N2, and COThe Journal of Chemical Physics, 1971
- Angular dependence of vibrational structure in the photoelectron spectra of N2 and O2Chemical Physics Letters, 1971
- A Discussion on photoelectron spectroscopy - Angular distributions and intensity in molecular photoelectron spectroscopy I. General theory for diatomic moleculesPhilosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1970
- Microwave Discharge Cavities Operating at 2450 MHzReview of Scientific Instruments, 1965