{"id":"S2003011480","label":"Gamma rays--Attenuation","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2003011480","normalized_label":"gamma rays--attenuation","broader":["http://id.loc.gov/authorities/subjects/sh2003007020"],"aliases":["Gamma attenuation","Gamma ray attenuation"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2003011480","provider":"lcsh","revision":"ba249a4701b9b02f","taxonomy_revision":"f050b5d4780b1289","title":"Gamma rays--Attenuation","url":"/topics/S2003011480","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"5224250618579150402","address_version":"morton4x16-v1","coordinates":[0,477,36382,24576],"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}