Abstract

An intense hydrogen light source for use in photochemistry is described, which yields intensities of up to 10¹⁶ quanta/sec in the 1100–1850 Å spectral region. Intensity measurements were made employing the photochemical formation of ozone in a flow of oxygen and the photoelectric volume effect in a nickel cathode. The intensity distribution was obtained mainly from spectrometric work. Typical observed intensities were 3 × 10¹⁵ quanta/sec in the 1400–1650 Å region and 3 × 10¹⁵ quanta/sec for Lyman-alpha at 1216 Å. Under the influence of the discharge the transmittance of LiF windows gradually decreases; however, the percentage decrease is a well-reproducible function of time.

© 1962 Optical Society of America

Intense Resonance Line Sources for Photochemical Work in the Vacuum Ultraviolet Region

Hideo Okabe
J. Opt. Soc. Am. 54(4) 478-481 (1964)

A High Intensity Flash Lamp for Vacuum Ultraviolet Photochemical Studies

B. C. Roquitte
Appl. Opt. 6(3) 415-416 (1967)

Two Light Sources for Use in the Extreme Ultraviolet

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Spectrally Selective Photodetectors for the Middle and Vacuum Ultraviolet

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Absorption Coefficients of Nitrogen Oxide in the Vacuum Ultraviolet

F. F. Marmo
J. Opt. Soc. Am. 43(12) 1186-1190 (1953)