Abstract

A method for determining the relative sensitivity of a vacuum ultraviolet (VUV) monochromator is described for the wavelength region from 200 to 1200 Å. Eleven VUV line pairs of low ionized atoms of nitrogen and oxygen are selected for which recent data of transition probabilities or branching ratios are available. Calibration is made by measuring the intensity ratios of these line pairs emitted from a stationary helium plasma into which a nitrogen or an oxygen gas is introduced. The results are in good agreement with those obtained using the usual atomic branching ratio method for hydrogen and helium.

© 1984 Optical Society of America

Spectrometer-sensitivity calibration in the extreme ultraviolet by means of branching ratios of magnetic-dipole lines

B. Denne and E. Hinnov
J. Opt. Soc. Am. B 1(5) 699-703 (1984)

Relative calibration of grazing incidence spectrometers from charge-exchange excitation of hydrogenic ions

R. C. Isler and R. A. Langley
Appl. Opt. 24(2) 254-260 (1985)

Calibration of Vacuum-Ultraviolet Monochromators by the Molecular Branching-Ratio Technique*

M. J. Mumma and E. C. Zipf
J. Opt. Soc. Am. 61(1) 83-88 (1971)

Measurement of Absolute Radiation Intensities in the Vacuum-Ultraviolet Region

Einar Hinnov and Fritz W. Hofmann
J. Opt. Soc. Am. 53(11) 1259-1265 (1963)

VUV Radiometry with Hydrogen Arcs. 1: Principle of the Method and Comparisons with Blackbody Calibrations from 1650 Å to 3600 Å

W. R. Ott, P. Fieffe-Prevost, and W. L. Wiese
Appl. Opt. 12(7) 1618-1629 (1973)