Low-pressure gas discharge lamp with electron emitter substances similar to batio3

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A low-pressure gas discharge lamp is described, which is equipped with a gas-discharge vessel containing an inert gas filling as the buffer gas and an indium, thallium and/or copper halide, and with electrodes and with means for generating and maintaining a low-pressure gas discharge, which has as the electron emitter substance a compound selected from the group of ABO3 or AnBO2+n, AnC2O5+n, or AnD2O3+n, wherein : A=an alkaline earth element or a mixture of several different alkaline earth elements, B=cerium, titanium, zirconium, hafnium, or a mixture of these elements, C=vanadium, niobium, tantalum, or a mixture of these elements, D=scandium, yttrium, lanthanum, a rare earth element, or a mixture of these elements.