The ionic excimer molecule XeRb+ is formed in an electron beam excited gas mixture of Xe, Rb, and a buffer gas. The formation and quenching mechanisms of ionic excimers are investigated by measuring the XeRb+fluorescence as a function of the gas composition and gas pressure. The formation of XeRb+ is achieved by a three‐body association reaction between Xe+, Rb, and a buffer gas atom. For the buffer gases He, Ne, or Ar the values of the important formationrate constants are determined from the observed fluorescence signal decay.
Lankhorst, F. T. J. L., Bastiaens, H. M. J., Peters, P. J. M., & Witteman, W. J. (1994). Formation and quenching mechanisms of the electron beam pumped (XeRb)+ ionic excimer in different buffer gases. Applied physics letters, 64(19), 2471-2473. https://doi.org/10.1063/1.111600