{"id":"S85081856","label":"Mass attenuation coefficients","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85081856","normalized_label":"mass attenuation coefficients","broader":["http://id.loc.gov/authorities/subjects/sh85110340","http://id.loc.gov/authorities/subjects/sh85128354"],"aliases":["Absorption coefficients, Total","Attenuation coefficients, Mass","Total absorption coefficients"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85081856","provider":"lcsh","revision":"53be5b9295bd5ca3","taxonomy_revision":"f050b5d4780b1289","title":"Mass attenuation coefficients","url":"/topics/S85081856","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"288300746041345536","address_version":"morton4x16-v1","coordinates":[0,20,18684,0],"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}