The effect of air impurities on pure neon luminescence |
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Authors: | A I Mis’kevich Jinbo Guo |
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Institution: | 1. National Nuclear Research University (MEPhI), Moscow, 115409, Russia
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Abstract: | The luminescence decay curves of the 2p 1 level of the NeI atom (the transition 3p??1/2]0?3s??1/2] 1 ° , ?? = 585.2 nm) and the B 2?? u + level of the N 2 + molecule (the transition B 2?? u + (?? = 0)?X 2?? g + (??? = 0), ?? = 391.4 nm) in pure and air-containing neon are measured. The gas was excited by electron beam pulses (E e = 150 keV, ?? = 5 ns, I max = 500 A). It is shown that the molecular gases contained in air strongly quench the long-lived component of neon luminescence exciting due to dissociative recombination of Ne 2 + molecular ions. The relative light yield at a wavelength of 585.2 nm as a function of the partial pressure of air in neon is determined to be ?? = (1+ 2??p)?1, where p is the air pressure in Torr. |
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