{"id":"https://openalex.org/A5110128463","orcid":null,"observed_orcids":[],"display_name":"O.B. Nielsen","raw_author_names":["Nielsen, O B","Nielsen, O.B.","O-B. Nielsen","O. -B. Nielsen","O. B. NIELSEN","O. B. Nielsen","O.-B. Nielsen","O.B. Nielsen"],"full_name":"O. -B. Nielsen","works_count":77,"cited_by_count":2308,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":29,"i10_index":55},"ids":{"openalex":"https://openalex.org/A5110128463","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I122411786","ror":"https://ror.org/05dxps055","display_name":"California Institute of Technology","country_code":"US","type":"education","lineage":["https://openalex.org/I122411786"]},"years":[1963]},{"institution":{"id":"https://openalex.org/I123387679","ror":"https://ror.org/048a87296","display_name":"Uppsala University","country_code":"SE","type":"education","lineage":["https://openalex.org/I123387679"]},"years":[1960]},{"institution":{"id":"https://openalex.org/I124055696","ror":"https://ror.org/035b05819","display_name":"University of Copenhagen","country_code":"DK","type":"education","lineage":["https://openalex.org/I124055696"]},"years":[1990,1986,1985,1982,1981,1978,1974,1973,1972,1971,1970,1969,1967,1966,1965,1964,1963,1962,1961,1960,1959,1958,1957,1956,1954,1949]},{"institution":{"id":"https://openalex.org/I148283060","ror":"https://ror.org/02jbv0t02","display_name":"Lawrence Berkeley National Laboratory","country_code":"US","type":"facility","lineage":["https://openalex.org/I1330989302","https://openalex.org/I148283060","https://openalex.org/I39565521"]},"years":[1963]},{"institution":{"id":"https://openalex.org/I200870766","ror":"https://ror.org/02ex6cf31","display_name":"Brookhaven National Laboratory","country_code":"US","type":"facility","lineage":["https://openalex.org/I1330989302","https://openalex.org/I200870766","https://openalex.org/I39565521","https://openalex.org/I4210142672"]},"years":[1965]},{"institution":{"id":"https://openalex.org/I20089843","ror":"https://ror.org/00hx57361","display_name":"Princeton University","country_code":"US","type":"education","lineage":["https://openalex.org/I20089843"]},"years":[1970]},{"institution":{"id":"https://openalex.org/I4210097150","ror":"https://ror.org/00nzsxq20","display_name":"National Centre for Nuclear Research","country_code":"PL","type":"government","lineage":["https://openalex.org/I4210097150"]},"years":[1972]},{"institution":{"id":"https://openalex.org/I67311998","ror":"https://ror.org/01ggx4157","display_name":"European Organization for Nuclear Research","country_code":"CH","type":"facility","lineage":["https://openalex.org/I67311998"]},"years":[1982,1979,1974,1973,1972,1971,1970]},{"institution":{"id":"https://openalex.org/I78577930","ror":"https://ror.org/00hj8s172","display_name":"Columbia University","country_code":"US","type":"education","lineage":["https://openalex.org/I78577930"]},"years":[1965]}],"last_known_institutions":[{"id":"https://openalex.org/I124055696","ror":"https://ror.org/035b05819","display_name":"University of Copenhagen","country_code":"DK","type":"education","lineage":["https://openalex.org/I124055696"]}],"topics":[{"id":"https://openalex.org/T10093","display_name":"Nuclear physics research studies","count":73,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"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/T13414","display_name":"Radioactive Decay and Measurement Techniques","count":55,"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/T13458","display_name":"Astronomical and nuclear sciences","count":51,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"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/T10527","display_name":"High-Energy Particle Collisions Research","count":12,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"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/T10224","display_name":"Quantum Chromodynamics and Particle Interactions","count":7,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T13414","display_name":"Radioactive Decay and Measurement Techniques","value":0.000331,"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/T13458","display_name":"Astronomical and nuclear sciences","value":0.0003305,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"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/T10093","display_name":"Nuclear physics research studies","value":0.0001173,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"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/T10527","display_name":"High-Energy Particle Collisions Research","value":3.14e-05,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"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/T11949","display_name":"Nuclear Physics and Applications","value":1.61e-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":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.96025550365448},{"id":"164304813","wikidata":"https://www.wikidata.org/wiki/Q25276","display_name":"Isotope","score":0.8339454531669617},{"id":"184779094","wikidata":"https://www.wikidata.org/wiki/Q26383","display_name":"Atomic physics","score":0.7507173418998718},{"id":"185544564","wikidata":"https://www.wikidata.org/wiki/Q81197","display_name":"Nuclear physics","score":0.694128155708313},{"id":"62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","score":0.18181383609771729}],"counts_by_year":[{"year":1949,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1950,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1954,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1955,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1956,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1957,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1958,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1959,"works_count":5,"oa_works_count":0,"cited_by_count":0},{"year":1960,"works_count":5,"oa_works_count":0,"cited_by_count":0},{"year":1961,"works_count":5,"oa_works_count":0,"cited_by_count":0},{"year":1962,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1963,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1964,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1965,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1966,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1967,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1968,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1969,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1970,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1971,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1972,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1973,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1974,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1976,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":1978,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1979,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1981,"works_count":4,"oa_works_count":1,"cited_by_count":0},{"year":1982,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1985,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1986,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1988,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1989,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1990,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":29},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":22},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":13},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":24},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":36},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":23},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":13},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":16},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":17},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":16},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":11},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":14},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":18},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":17},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":12}],"display_name_alternatives":["Nielsen, O B","Nielsen, O.B.","O-B. Nielsen","O. -B. Nielsen","O. B. NIELSEN","O. B. Nielsen","O.-B. Nielsen","O.B. Nielsen"],"block_key":"o nielsen","works_api_url":"https://api.openalex.org/works?filter=author.id:A5110128463","updated_date":"2026-11-04T11:47:51","created_date":"2016-06-24T00:00:00"}