{"id":"S85042214","label":"Electron impact ionization","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85042214","normalized_label":"electron impact ionization","broader":["http://id.loc.gov/authorities/subjects/sh85042325","http://id.loc.gov/authorities/subjects/sh85067822"],"aliases":["Ionization by electron impact"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85042214","provider":"lcsh","revision":"baf615d383e72fab","taxonomy_revision":"f050b5d4780b1289","title":"Electron impact ionization","url":"/topics/S85042214","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9513999624307081728","address_version":"morton4x16-v1","coordinates":[0,20,18064,38912],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}