{"id":"https://openalex.org/W157491992","doi":null,"title":"Determination of output factors for the Leksell gamma knife using ion chamber, thermoluminescence detectors and films.","display_name":"Determination of output factors for the Leksell gamma knife using ion chamber, thermoluminescence detectors and films.","publication_year":2006,"publication_date":"2006-04-01","ids":{"openalex":"https://openalex.org/W157491992","mag":"157491992","pmid":"https://pubmed.ncbi.nlm.nih.gov/17318975"},"language":"en","primary_location":{"id":"pmid:17318975","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/17318975","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":"Journal of B.U.ON. : official journal of the Balkan Union of Oncology","raw_type":"Journal Article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["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/A5002082406","display_name":"Hatice Bilge","orcid":"https://orcid.org/0000-0002-2105-2171","observed_orcids":["https://orcid.org/0000-0002-2105-2171","https://orcid.org/0009-0001-5858-7612"]},"institutions":[{"id":"https://openalex.org/I67581229","display_name":"Istanbul University","ror":"https://ror.org/03a5qrr21","country_code":"TR","type":"education","lineage":["https://openalex.org/I67581229"]}],"countries":["TR"],"is_corresponding":false,"raw_author_name":"H Bilge","raw_affiliation_strings":["Oncology Institute of Istanbul University, Istanbul, Turkey. haticebilge@yahoo.com"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Oncology Institute of Istanbul University, Istanbul, Turkey. haticebilge@yahoo.com","institution_ids":["https://openalex.org/I67581229"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5013391218","display_name":"Z Osen","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Z Osen","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5024181399","display_name":"\u00d6znur \u015eenkesen","orcid":"https://orcid.org/0000-0002-6004-086X","observed_orcids":["https://orcid.org/0000-0002-6004-086X"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"O Senkesen","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5022443121","display_name":"H. K\u00fc\u00e7\u00fcc\u00fck","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"H Kucucuk","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109872837","display_name":"Ahmet Nurhak \u00c7AKIR","orcid":"https://orcid.org/0009-0006-9945-0395","observed_orcids":["https://orcid.org/0009-0006-9945-0395"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"A Cakir","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5112897062","display_name":"Meri\u00e7 \u015eeng\u00f6z","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"M Sengoz","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.6308,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.66185628,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":93},"biblio":{"volume":"11","issue":"2","first_page":"223","last_page":"7"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10358","display_name":"Advanced Radiotherapy 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/T10358","display_name":"Advanced Radiotherapy 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/T11176","display_name":"Radiation Therapy and Dosimetry","score":0.00019999999494757503,"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/T10844","display_name":"Radiation Dose and Imaging","score":9.999999747378752e-05,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/gamma-knife","display_name":"Gamma Knife","score":0.8949999809265137},{"id":"https://openalex.org/keywords/output-factors","display_name":"output factors","score":0.8830000162124634},{"id":"https://openalex.org/keywords/stereotactic-radiosurgery","display_name":"stereotactic radiosurgery","score":0.9300000071525574},{"id":"https://openalex.org/keywords/small-field-dosimetry","display_name":"small field dosimetry","score":0.9409999847412109},{"id":"https://openalex.org/keywords/ionization-chamber","display_name":"ionization chamber","score":0.7670000195503235},{"id":"https://openalex.org/keywords/thermoluminescence-detectors","display_name":"thermoluminescence detectors","score":0.8849999904632568},{"id":"https://openalex.org/keywords/film-dosimetry","display_name":"film dosimetry","score":0.7639999985694885}],"concepts":[{"id":"https://openalex.org/C2779200277","wikidata":"https://www.wikidata.org/wiki/Q1164658","display_name":"Collimator","level":2,"score":0.8274931311607361},{"id":"https://openalex.org/C151770136","wikidata":"https://www.wikidata.org/wiki/Q640610","display_name":"Ionization chamber","level":4,"score":0.7635634541511536},{"id":"https://openalex.org/C148325268","wikidata":"https://www.wikidata.org/wiki/Q1412702","display_name":"Thermoluminescent dosimeter","level":4,"score":0.7160735726356506},{"id":"https://openalex.org/C102073756","wikidata":"https://www.wikidata.org/wiki/Q36194","display_name":"Thermoluminescence","level":3,"score":0.5925489664077759},{"id":"https://openalex.org/C2780387249","wikidata":"https://www.wikidata.org/wiki/Q973234","display_name":"Radiosurgery","level":3,"score":0.5793678760528564},{"id":"https://openalex.org/C75088862","wikidata":"https://www.wikidata.org/wiki/Q2291081","display_name":"Dosimetry","level":2,"score":0.5783879160881042},{"id":"https://openalex.org/C2989005","wikidata":"https://www.wikidata.org/wiki/Q214963","display_name":"Nuclear medicine","level":1,"score":0.5358086824417114},{"id":"https://openalex.org/C2909743014","wikidata":"https://www.wikidata.org/wiki/Q1412702","display_name":"Thermoluminescent Dosimetry","level":5,"score":0.500817060470581},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.49354684352874756},{"id":"https://openalex.org/C2994042627","wikidata":"https://www.wikidata.org/wiki/Q973234","display_name":"Gamma knife","level":4,"score":0.48437008261680603},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.43367767333984375},{"id":"https://openalex.org/C94915269","wikidata":"https://www.wikidata.org/wiki/Q1834857","display_name":"Detector","level":2,"score":0.4255320429801941},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.38689035177230835},{"id":"https://openalex.org/C145148216","wikidata":"https://www.wikidata.org/wiki/Q36496","display_name":"Ion","level":2,"score":0.25826534628868103},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.13612398505210876},{"id":"https://openalex.org/C105636585","wikidata":"https://www.wikidata.org/wiki/Q303665","display_name":"Dosimeter","level":3,"score":0.11886578798294067},{"id":"https://openalex.org/C509974204","wikidata":"https://www.wikidata.org/wiki/Q180507","display_name":"Radiation therapy","level":2,"score":0.0},{"id":"https://openalex.org/C148869448","wikidata":"https://www.wikidata.org/wiki/Q184240","display_name":"Luminescence","level":2,"score":0.0},{"id":"https://openalex.org/C198291218","wikidata":"https://www.wikidata.org/wiki/Q190382","display_name":"Ionization","level":3,"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/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D011880","descriptor_name":"Radiotherapy Planning, Computer-Assisted","qualifier_ui":"Q000295","qualifier_name":"instrumentation","is_major_topic":false},{"descriptor_ui":"D011880","descriptor_name":"Radiotherapy Planning, Computer-Assisted","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D013819","descriptor_name":"Thermoluminescent Dosimetry","qualifier_ui":"Q000295","qualifier_name":"instrumentation","is_major_topic":true},{"descriptor_ui":"D013819","descriptor_name":"Thermoluminescent Dosimetry","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D016634","descriptor_name":"Radiosurgery","qualifier_ui":"Q000295","qualifier_name":"instrumentation","is_major_topic":true},{"descriptor_ui":"D016634","descriptor_name":"Radiosurgery","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false}],"locations_count":3,"locations":[{"id":"pmid:17318975","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/17318975","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":"Journal of B.U.ON. : official journal of the Balkan Union of Oncology","raw_type":"Journal Article"},{"id":"pmh:oai:openaccess.marmara.edu.tr:11424/116738","doi":null,"is_oa":false,"landing_page_url":"https://www.scopus.com/inward/record.url?eid=2-s2.0-33751064011&partnerID=40&md5=77a0c05aeed03fb5e16ec0fd700cbd5b","pdf_url":null,"source":{"id":"https://openalex.org/S4306401380","display_name":"Dspace Repository (Marmara \u00dcniversitesi)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I74897591","host_organization_name":"Marmara University","host_organization_lineage":["https://openalex.org/I74897591"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"article"},{"id":"pmh:oai:openaccess.marmara.edu.tr:11424/256044","doi":null,"is_oa":false,"landing_page_url":"https://hdl.handle.net/11424/256044","pdf_url":null,"source":{"id":"https://openalex.org/S4306401380","display_name":"Dspace Repository (Marmara \u00dcniversitesi)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I74897591","host_organization_name":"Marmara University","host_organization_lineage":["https://openalex.org/I74897591"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.4043000042438507,"display_name":"Good health and well-being","id":"https://metadata.un.org/sdg/3"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W1971297756","https://openalex.org/W1980665881","https://openalex.org/W3213502165","https://openalex.org/W1989192969","https://openalex.org/W2157654203","https://openalex.org/W2022301981","https://openalex.org/W2094592997","https://openalex.org/W1977282930","https://openalex.org/W2074707009","https://openalex.org/W2037361250"],"abstract_inverted_index":{"PURPOSE:":[0],"In":[1],"stereotactic":[2],"radiosurgery":[3],"by":[4,87,177,182,203],"the":[5,22,50,53,84,88,98,160,171,178,200,204],"Leksell":[6,76,109],"gamma":[7,77,110],"knife,":[8],"small":[9,25,35],"fields":[10],"of":[11,24,52,59,67,97],"4-18":[12],"mm":[13,73,104,139,169,211,220],"in":[14,157,196],"diameter":[15,51],"are":[16,28,195],"used.":[17],"The":[18,31,56,93,114,191],"difficulties":[19],"associated":[20],"with":[21,44,83,144,159,174,199],"dosimetry":[23],"radiosurgical":[26],"beams":[27],"well":[29],"known.":[30],"output":[32,47,65,95,115,141,193],"factors":[33,48,66,96,194],"for":[34,75,106,206,218],"field":[36,41,54],"sizes":[37],"show":[38],"a":[39,121],"strong":[40],"size":[42],"dependence,":[43],"rapidly":[45],"decreasing":[46],"as":[49],"decreases.":[55],"main":[57],"purpose":[58],"this":[60],"study":[61],"was":[62,216],"to":[63,80],"determine":[64],"18,":[68,99,207],"14,":[69],"8":[70,101,166,210],"and":[71,79,102,132,152,167,187,209],"4":[72,103,168,219],"collimators":[74,105],"knife":[78,111],"compare":[81],"them":[82],"values":[85,175,201],"given":[86,176],"manufacturer.":[89],"MATERIALS":[90],"AND":[91],"METHODS:":[92],"relative":[94],"14":[100,138,208],"model":[107],"B":[108],"were":[112,118,156,180],"measured.":[113],"factor":[116],"measurements":[117,142],"prformed":[119],"using":[120],"PTW":[122],"0.125":[123],"cc":[124],"ion":[125,146],"chamber,":[126,147],"G200":[127],"thermoluminescence":[128],"detectors":[129],"(TLDs),":[130],"KodakXV":[131],"Kodak":[133,149,153,183],"ERD2":[134,154],"films.":[135],"RESULTS:":[136],"For":[137,165],"collimator,":[140],"used":[143],"an":[145],"TLD,":[148],"XV":[150],"film":[151,155],"agreement":[158,173,198,215],"manufacturer's":[161],"estimates":[162],"within":[163],"1%.":[164],"collimators,":[170],"best":[172],"manufacturer":[179,205],"obtained":[181],"EDR2":[184],"films":[185],"(2%":[186],"5%,":[188],"respectively).":[189],"CONCLUSION:":[190],"measured":[192],"good":[197,214],"recommended":[202],"collimators.":[212],"No":[213],"found":[217],"collimator.":[221]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2015,"cited_by_count":1}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}