Abstract

The calculations of the radiation spectrum, the color rendering index Ra, the color temperature Tc, and the color coordinates Xc and Yc of cesium plasma radiation under the conditions characteristic for a pulse-periodic discharge in cesium are presented. The plasma pressure range of 30–1500 Torr and the range of temperatures on the axis of 3200–6000 K are considered. The color rendering index is shown to be Ra > 90 in the entire analyzed plasma parameter ranges. The color temperature of plasma radiation varies within a broad range of 2300–5500 K. The color coordinates of the cesium plasma radiation are close to the Xc and Yc coordinates of a black body.

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