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Calibration of the Spectral Radiance of a Low Current Carbon Arc between 185 nm and 340 nm

1978; De Gruyter; Volume: 33; Issue: 4 Linguagem: Inglês

10.1515/zna-1978-0417

1865-7109

D. Einfeld, D. Stuck,

Electron and X-Ray Spectroscopy Techniques

The spectral radiance L λ of a low current carbon arc (current 7.3 amps, voltage 65 V) has been calibrated in the spectral range from the air cut-off (λ ≈ 185 nm) to 340 nm with an uncertainty of ± 3% utilizing the electron synchrotron radiation of DESY, Hamburg. In the wavelength range above 260 nm these values differ by less than ± 6% from the measurements of Magdeburg and Schurer.