A process caused by
sputtering,
trapping (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.
Source:
Cite as:
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.