{"id":"https://openalex.org/A5083178843","orcid":null,"observed_orcids":[],"display_name":"Roger Wellum","raw_author_names":["R Wellum","R. WELLUM","R. Wellum","ROGER WELLUM","Roger Wellum","WELLUM Roger","WELLUM, R.","Wellum, R."],"full_name":"Roger Wellum","works_count":95,"cited_by_count":880,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":15,"i10_index":24},"ids":{"openalex":"https://openalex.org/A5083178843","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I20581793","ror":"https://ror.org/00xkeyj56","display_name":"University of Kent","country_code":"GB","type":"education","lineage":["https://openalex.org/I20581793"]},"years":[1971,1970,1967]},{"institution":{"id":"https://openalex.org/I2800387288","ror":"https://ror.org/00k4n6c32","display_name":"European Commission","country_code":"BE","type":"government","lineage":["https://openalex.org/I1320481043","https://openalex.org/I2800387288"]},"years":[2016,2014,2010,2009,2008,2007,2005,2003,2001,1999]},{"institution":{"id":"https://openalex.org/I4210118628","ror":"https://ror.org/02ef88m96","display_name":"Joint Research Center","country_code":"BE","type":"government","lineage":["https://openalex.org/I1320481043","https://openalex.org/I2800387288","https://openalex.org/I4210118628","https://openalex.org/I4210161702"]},"years":[2016,2014,2010,2009,2008,2007,2006,2005,2003,2002,2001,1999]},{"institution":{"id":"https://openalex.org/I4210118689","ror":"https://ror.org/02qezmz13","display_name":"Joint Research Centre","country_code":"IT","type":"government","lineage":["https://openalex.org/I1320481043","https://openalex.org/I2800387288","https://openalex.org/I4210118689","https://openalex.org/I4210161702"]},"years":[2016,2014,2010,2009,2008,2007,2003,2002,2001,1992]},{"institution":{"id":"https://openalex.org/I4210133948","ror":"https://ror.org/02ptz5951","display_name":"Joint Research Centre","country_code":"DE","type":"government","lineage":["https://openalex.org/I1320481043","https://openalex.org/I2800387288","https://openalex.org/I4210133948","https://openalex.org/I4210161702"]},"years":[2014,2008,2007,1992,1991,1986,1984,1983]},{"institution":{"id":"https://openalex.org/I4210160559","ror":"https://ror.org/05jfq2w07","display_name":"Scottish Universities Environmental Research Centre","country_code":"GB","type":"facility","lineage":["https://openalex.org/I4210160559","https://openalex.org/I7882870","https://openalex.org/I98677209"]},"years":[1977,1973]},{"institution":{"id":"https://openalex.org/I4210161702","ror":"https://ror.org/04j5wtv36","display_name":"Directorate-General Joint Research Centre","country_code":"BE","type":"government","lineage":["https://openalex.org/I1320481043","https://openalex.org/I2800387288","https://openalex.org/I4210161702"]},"years":[2010,2008,2007]},{"institution":{"id":"https://openalex.org/I4210162697","ror":"https://ror.org/05wzskb47","display_name":"Joint Research Centre","country_code":"NL","type":"government","lineage":["https://openalex.org/I1320481043","https://openalex.org/I2800387288","https://openalex.org/I4210161702","https://openalex.org/I4210162697"]},"years":[2016,2014,2010,2009,2008,2007,2005,2003,2002,1992,1986]},{"institution":{"id":"https://openalex.org/I4210166174","ror":"https://ror.org/05a4nj078","display_name":"Joint Research Center","country_code":"ES","type":"government","lineage":["https://openalex.org/I1320481043","https://openalex.org/I2800387288","https://openalex.org/I4210161702","https://openalex.org/I4210166174"]},"years":[2008]}],"last_known_institutions":[{"id":"https://openalex.org/I2800387288","ror":"https://ror.org/00k4n6c32","display_name":"European Commission","country_code":"BE","type":"government","lineage":["https://openalex.org/I1320481043","https://openalex.org/I2800387288"]},{"id":"https://openalex.org/I4210118628","ror":"https://ror.org/02ef88m96","display_name":"Joint Research Center","country_code":"BE","type":"government","lineage":["https://openalex.org/I1320481043","https://openalex.org/I2800387288","https://openalex.org/I4210118628","https://openalex.org/I4210161702"]},{"id":"https://openalex.org/I4210118689","ror":"https://ror.org/02qezmz13","display_name":"Joint Research Centre","country_code":"IT","type":"government","lineage":["https://openalex.org/I1320481043","https://openalex.org/I2800387288","https://openalex.org/I4210118689","https://openalex.org/I4210161702"]},{"id":"https://openalex.org/I4210162697","ror":"https://ror.org/05wzskb47","display_name":"Joint Research Centre","country_code":"NL","type":"government","lineage":["https://openalex.org/I1320481043","https://openalex.org/I2800387288","https://openalex.org/I4210161702","https://openalex.org/I4210162697"]}],"topics":[{"id":"https://openalex.org/T13414","display_name":"Radioactive Decay and Measurement Techniques","count":56,"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","count":54,"subfield":{"id":"https://openalex.org/subfields/1804","display_name":"Statistics, Probability and Uncertainty"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10001","display_name":"Geological and Geochemical Analysis","count":28,"subfield":{"id":"https://openalex.org/subfields/1908","display_name":"Geophysics"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10973","display_name":"Radioactive element chemistry and processing","count":22,"subfield":{"id":"https://openalex.org/subfields/1604","display_name":"Inorganic Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10946","display_name":"Radioactivity and Radon Measurements","count":19,"subfield":{"id":"https://openalex.org/subfields/3614","display_name":"Radiological and Ultrasound Technology"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"topic_share":[{"id":"https://openalex.org/T13414","display_name":"Radioactive Decay and Measurement Techniques","value":0.0003187,"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","value":0.0002352,"subfield":{"id":"https://openalex.org/subfields/1804","display_name":"Statistics, Probability and Uncertainty"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10946","display_name":"Radioactivity and Radon Measurements","value":9.33e-05,"subfield":{"id":"https://openalex.org/subfields/3614","display_name":"Radiological and Ultrasound Technology"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10973","display_name":"Radioactive element chemistry and processing","value":7.94e-05,"subfield":{"id":"https://openalex.org/subfields/1604","display_name":"Inorganic Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11949","display_name":"Nuclear Physics and Applications","value":6.5e-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"}}],"x_concepts":[{"id":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.9449100494384766},{"id":"555451288","wikidata":"https://www.wikidata.org/wiki/Q1098","display_name":"Uranium","score":0.8635134696960449},{"id":"177322064","wikidata":"https://www.wikidata.org/wiki/Q750955","display_name":"Radiochemistry","score":0.7078292965888977},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.682357132434845},{"id":"185544564","wikidata":"https://www.wikidata.org/wiki/Q81197","display_name":"Nuclear physics","score":0.6315856575965881}],"counts_by_year":[{"year":1967,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1969,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1970,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1971,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1973,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1974,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1977,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1983,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1984,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1986,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1991,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1992,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1993,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1998,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1999,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2000,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2001,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2002,"works_count":5,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":5,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":8,"oa_works_count":0,"cited_by_count":0},{"year":2006,"works_count":8,"oa_works_count":0,"cited_by_count":0},{"year":2007,"works_count":14,"oa_works_count":0,"cited_by_count":0},{"year":2008,"works_count":7,"oa_works_count":0,"cited_by_count":0},{"year":2009,"works_count":8,"oa_works_count":0,"cited_by_count":0},{"year":2010,"works_count":9,"oa_works_count":2,"cited_by_count":0},{"year":2011,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":48},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":57},{"year":2014,"works_count":2,"oa_works_count":0,"cited_by_count":47},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":54},{"year":2016,"works_count":1,"oa_works_count":0,"cited_by_count":49},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":41},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":35},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":34},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":31},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":36},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":38},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":37},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":22},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":45},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":22}],"display_name_alternatives":["R Wellum","R. WELLUM","R. Wellum","ROGER WELLUM","Roger Wellum","WELLUM Roger","WELLUM, R.","Wellum, R."],"block_key":"r wellum","works_api_url":"https://api.openalex.org/works?filter=author.id:A5083178843","updated_date":"2026-10-31T12:29:50","created_date":"2016-06-24T00:00:00"}