A process caused by sputtering
(or adsorbing) metallic atoms, gas atoms or molecules on the walls of the vessel or anode
. This has the effect of reducing the gas pressure in sealed lamps, and may be useful for cleaning up or gettering unwanted gases.
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. doi:10.1351/goldbook