Thermionic emission and photoemission of electrons from dielectric and metal surfaces in Cs vapor cells A. V. Papoyan, J. Guéna, M. Lintz and M. A. Bouchiat Eur. Phys. J. AP, 19 1 (2002) 15-24 Published online: 28 June 2002 DOI: 10.1051/epjap:2002044