Generator, modulator and control lamps with power dissipated by the anode, over 25 watts. Methods for monitoring the absence of intra-tube short circuits and breaks of electrodes and heater
State system for ensuring the uniformity of measurements. State verification schedule for means of measuring spectral density of radiance, spectral density of radiant intensity, spectral density of irradiance, radiant intensity and irradiance in the wavelength range of 0,2...25,0 µm