🌐EnglishEnglishDeutschFrançaisItalianoРусский中文日本語EntityQ2069105· pop 7· linked from 17 articlesPenning ionizationAlso known as Penning effectionization processAvailable in 7 languagesFrançaisDeutsch日本語РусскийItalianoNorwegianvia Wikidata sitelinks · CC0Connectionsnoble gasesEntityEindhovenEntityCategoriesElectron spectroscopyIon source