{"id":"https://openalex.org/W2003013923","doi":"https://doi.org/10.1016/j.apradiso.2010.01.007","title":"A new primary standardization of 229Th","display_name":"A new primary standardization of 229Th","publication_year":2010,"publication_date":"2010-01-15","ids":{"openalex":"https://openalex.org/W2003013923","doi":"https://doi.org/10.1016/j.apradiso.2010.01.007","mag":"2003013923","pmid":"https://pubmed.ncbi.nlm.nih.gov/20116268"},"language":"en","primary_location":{"id":"doi:10.1016/j.apradiso.2010.01.007","doi":"https://doi.org/10.1016/j.apradiso.2010.01.007","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.apradiso.2010.01.007","pdf_url":null,"source":{"id":"https://openalex.org/S185347286","display_name":"Applied Radiation and Isotopes","issn_l":"0969-8043","issn":["0969-8043","1872-9800"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-b","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-70","russia-white-list-3"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Applied Radiation and Isotopes","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","pubmed"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5013675865","display_name":"Ryan Fitzgerald","orcid":"https://orcid.org/0000-0002-0993-1085","observed_orcids":["https://orcid.org/0000-0002-0993-1085"]},"institutions":[{"id":"https://openalex.org/I1321296531","display_name":"National Institute of Standards and Technology","ror":"https://ror.org/05xpvk416","country_code":"US","type":"government","lineage":["https://openalex.org/I1321296531","https://openalex.org/I1343035065"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"R. Fitzgerald","raw_affiliation_strings":["Physics Laboratory, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA. ryan.fitzgerald@nist.gov","Physics Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Physics Laboratory, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA. ryan.fitzgerald@nist.gov","institution_ids":["https://openalex.org/I1321296531"]},{"raw_affiliation_string":"Physics Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899, USA","institution_ids":["https://openalex.org/I1321296531"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056255562","display_name":"Ronald Coll\u00e9","orcid":"https://orcid.org/0000-0003-0829-0981","observed_orcids":["https://orcid.org/0000-0003-0829-0981"]},"institutions":[{"id":"https://openalex.org/I1321296531","display_name":"National Institute of Standards and Technology","ror":"https://ror.org/05xpvk416","country_code":"US","type":"government","lineage":["https://openalex.org/I1321296531","https://openalex.org/I1343035065"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"R. Coll\u00e9","raw_affiliation_strings":["Physics Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Physics Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899, USA","institution_ids":["https://openalex.org/I1321296531"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5058346132","display_name":"Lizbeth Laureano-P\u00e9rez","orcid":"https://orcid.org/0000-0003-1424-7613","observed_orcids":["https://orcid.org/0000-0003-1424-7613"]},"institutions":[{"id":"https://openalex.org/I1321296531","display_name":"National Institute of Standards and Technology","ror":"https://ror.org/05xpvk416","country_code":"US","type":"government","lineage":["https://openalex.org/I1321296531","https://openalex.org/I1343035065"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"L. Laureano-P\u00e9rez","raw_affiliation_strings":["Physics Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Physics Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899, USA","institution_ids":["https://openalex.org/I1321296531"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5052464890","display_name":"Leticia S. Pibida","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1321296531","display_name":"National Institute of Standards and Technology","ror":"https://ror.org/05xpvk416","country_code":"US","type":"government","lineage":["https://openalex.org/I1321296531","https://openalex.org/I1343035065"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"L. Pibida","raw_affiliation_strings":["Physics Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Physics Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899, USA","institution_ids":["https://openalex.org/I1321296531"]}]},{"author_position":"middle","author":{"id":null,"display_name":"M.M. Hammond","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1321296531","display_name":"National Institute of Standards and Technology","ror":"https://ror.org/05xpvk416","country_code":"US","type":"government","lineage":["https://openalex.org/I1321296531","https://openalex.org/I1343035065"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"M.M. Hammond","raw_affiliation_strings":["Physics Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Physics Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899, USA","institution_ids":["https://openalex.org/I1321296531"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111571132","display_name":"S. Nour","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1321296531","display_name":"National Institute of Standards and Technology","ror":"https://ror.org/05xpvk416","country_code":"US","type":"government","lineage":["https://openalex.org/I1321296531","https://openalex.org/I1343035065"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"S. Nour","raw_affiliation_strings":["Physics Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Physics Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899, USA","institution_ids":["https://openalex.org/I1321296531"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5063219251","display_name":"Brian E. Zimmerman","orcid":"https://orcid.org/0000-0002-3278-0676","observed_orcids":["https://orcid.org/0000-0002-3278-0676"]},"institutions":[{"id":"https://openalex.org/I1321296531","display_name":"National Institute of Standards and Technology","ror":"https://ror.org/05xpvk416","country_code":"US","type":"government","lineage":["https://openalex.org/I1321296531","https://openalex.org/I1343035065"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"B.E. Zimmerman","raw_affiliation_strings":["Physics Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Physics Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899, USA","institution_ids":["https://openalex.org/I1321296531"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I1321296531"],"apc_list":{"value":3220,"currency":"USD","value_usd":3220},"apc_paid":null,"fwci":1.4981,"has_fulltext":false,"cited_by_count":25,"citation_normalized_percentile":{"value":0.80181862,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":97},"biblio":{"volume":"68","issue":"7-8","first_page":"1303","last_page":"1308"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13414","display_name":"Radioactive Decay and Measurement Techniques","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/3108","display_name":"Radiation"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T13414","display_name":"Radioactive Decay and Measurement Techniques","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/3108","display_name":"Radiation"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11890","display_name":"Scientific Measurement and Uncertainty Evaluation","score":9.999999747378752e-05,"subfield":{"id":"https://openalex.org/subfields/3105","display_name":"Instrumentation"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10946","display_name":"Radioactivity and Radon Measurements","score":9.999999747378752e-05,"subfield":{"id":"https://openalex.org/subfields/3108","display_name":"Radiation"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/thorium-229","display_name":"thorium-229","score":0.9919999837875366},{"id":"https://openalex.org/keywords/standard-reference-materials","display_name":"standard reference materials","score":0.8080000281333923},{"id":"https://openalex.org/keywords/gamma-ray-emission-probabilities","display_name":"gamma-ray emission probabilities","score":0.9769999980926514},{"id":"https://openalex.org/keywords/equilibrium-solutions","display_name":"equilibrium solutions","score":0.38600000739097595},{"id":"https://openalex.org/keywords/radionuclide-activity-measurement","display_name":"radionuclide activity measurement","score":0.5170000195503235}],"concepts":[{"id":"https://openalex.org/C111219384","wikidata":"https://www.wikidata.org/wiki/Q6954384","display_name":"NIST","level":2,"score":0.9097830057144165},{"id":"https://openalex.org/C188087704","wikidata":"https://www.wikidata.org/wiki/Q369577","display_name":"Standardization","level":2,"score":0.6297323703765869},{"id":"https://openalex.org/C116915560","wikidata":"https://www.wikidata.org/wiki/Q83504","display_name":"Nuclear engineering","level":1,"score":0.552914559841156},{"id":"https://openalex.org/C2994224358","wikidata":"https://www.wikidata.org/wiki/Q13649246","display_name":"Standard uncertainty","level":3,"score":0.4618024230003357},{"id":"https://openalex.org/C67462049","wikidata":"https://www.wikidata.org/wiki/Q911470","display_name":"Primary standard","level":3,"score":0.45012617111206055},{"id":"https://openalex.org/C100859065","wikidata":"https://www.wikidata.org/wiki/Q906323","display_name":"Certified reference materials","level":3,"score":0.436890184879303},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.41996943950653076},{"id":"https://openalex.org/C185544564","wikidata":"https://www.wikidata.org/wiki/Q81197","display_name":"Nuclear physics","level":1,"score":0.39925408363342285},{"id":"https://openalex.org/C30475298","wikidata":"https://www.wikidata.org/wiki/Q909554","display_name":"Computational physics","level":1,"score":0.3650558292865753},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.3538467288017273},{"id":"https://openalex.org/C184779094","wikidata":"https://www.wikidata.org/wiki/Q26383","display_name":"Atomic physics","level":1,"score":0.3512413203716278},{"id":"https://openalex.org/C137209882","wikidata":"https://www.wikidata.org/wiki/Q1403517","display_name":"Measurement uncertainty","level":2,"score":0.26124459505081177},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.22587886452674866},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.18840667605400085},{"id":"https://openalex.org/C165838908","wikidata":"https://www.wikidata.org/wiki/Q736777","display_name":"Calibration","level":2,"score":0.1465822458267212},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.1332581341266632},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.13150811195373535},{"id":"https://openalex.org/C119128265","wikidata":"https://www.wikidata.org/wiki/Q900165","display_name":"Detection limit","level":2,"score":0.08998632431030273},{"id":"https://openalex.org/C204321447","wikidata":"https://www.wikidata.org/wiki/Q30642","display_name":"Natural language processing","level":1,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D004784","descriptor_name":"Environmental Monitoring","qualifier_ui":"Q000592","qualifier_name":"standards","is_major_topic":false},{"descriptor_ui":"D005720","descriptor_name":"Gamma Rays","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012015","descriptor_name":"Reference Standards","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D013910","descriptor_name":"Thorium","qualifier_ui":"Q000032","qualifier_name":"analysis","is_major_topic":false},{"descriptor_ui":"D013910","descriptor_name":"Thorium","qualifier_ui":"Q000592","qualifier_name":"standards","is_major_topic":true}],"locations_count":3,"locations":[{"id":"doi:10.1016/j.apradiso.2010.01.007","doi":"https://doi.org/10.1016/j.apradiso.2010.01.007","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.apradiso.2010.01.007","pdf_url":null,"source":{"id":"https://openalex.org/S185347286","display_name":"Applied Radiation and Isotopes","issn_l":"0969-8043","issn":["0969-8043","1872-9800"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-b","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-70","russia-white-list-3"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Applied Radiation and Isotopes","raw_type":"journal-article"},{"id":"pmid:20116268","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/20116268","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine","raw_type":"Journal Article"},{"id":"mag:2738290164","doi":null,"is_oa":false,"landing_page_url":"https://www.nist.gov/publications/new-primary-standardization-th-229","pdf_url":null,"source":{"id":"https://openalex.org/S185347286","display_name":"Applied Radiation and Isotopes","issn_l":"0969-8043","issn":["0969-8043","1872-9800"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-b","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-70","russia-white-list-3"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"Applied Radiation and Isotopes","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320332178","display_name":"National Institute of Standards and Technology","ror":"https://ror.org/05xpvk416"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":14,"referenced_works":["https://openalex.org/W149807329","https://openalex.org/W1981286070","https://openalex.org/W1984341194","https://openalex.org/W2006496324","https://openalex.org/W2008024822","https://openalex.org/W2015115485","https://openalex.org/W2037707113","https://openalex.org/W2043334813","https://openalex.org/W2046813094","https://openalex.org/W2064357558","https://openalex.org/W2334990813","https://openalex.org/W2484427709","https://openalex.org/W2792384869","https://openalex.org/W2953400101"],"related_works":["https://openalex.org/W2738290164","https://openalex.org/W4321608059","https://openalex.org/W2035731264","https://openalex.org/W7163645280","https://openalex.org/W3045242037","https://openalex.org/W94965765","https://openalex.org/W2335712276","https://openalex.org/W1493432383","https://openalex.org/W2155029859","https://openalex.org/W2064357558"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":2},{"year":2020,"cited_by_count":4},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":3}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}