{"id":"https://openalex.org/W2021595048","doi":"https://doi.org/10.1117/12.932688","title":"Bidirectional Reflectance Distribution Function (BRDF) Measurements Of Sunshield And Baffle Materials For The Infrared Astronomy Satellite (IRAS) Telescope","display_name":"Bidirectional Reflectance Distribution Function (BRDF) Measurements Of Sunshield And Baffle Materials For The Infrared Astronomy Satellite (IRAS) Telescope","publication_year":1982,"publication_date":"1982-03-31","ids":{"openalex":"https://openalex.org/W2021595048","doi":"https://doi.org/10.1117/12.932688","mag":"2021595048"},"language":"en","primary_location":{"id":"doi:10.1117/12.932688","doi":"https://doi.org/10.1117/12.932688","is_oa":false,"landing_page_url":"https://doi.org/10.1117/12.932688","pdf_url":null,"source":{"id":"https://openalex.org/S183492911","display_name":"Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE","issn_l":"0277-786X","issn":["0277-786X","1996-756X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","norway-1"],"host_organization":"https://openalex.org/P4310315543","host_organization_name":"SPIE","host_organization_lineage":["https://openalex.org/P4310315543"],"host_organization_lineage_names":["SPIE"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"SPIE Proceedings","raw_type":"proceedings-article"},"volume":null,"type":"conference-paper","indexed_in":["crossref"],"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/A5112598638","display_name":"Sheldon M. Smith","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1280536761","display_name":"Ames Research Center","ror":"https://ror.org/02acart68","country_code":"US","type":"facility","lineage":["https://openalex.org/I1280536761","https://openalex.org/I4210124779"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Sheldon M. Smith","raw_affiliation_strings":["NASA/Ames Research Center (United States)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"NASA/Ames Research Center (United States)","institution_ids":["https://openalex.org/I1280536761"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5112598638"],"corresponding_institution_ids":["https://openalex.org/I1280536761"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.23469388,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"0304","issue":null,"first_page":"205","last_page":"213"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12917","display_name":"Astronomy and Astrophysical Research","score":0.736299991607666,"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"}},"topics":[{"id":"https://openalex.org/T12917","display_name":"Astronomy and Astrophysical Research","score":0.736299991607666,"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/T12019","display_name":"Calibration and Measurement Techniques","score":0.07209999859333038,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13049","display_name":"Surface Roughness and Optical Measurements","score":0.05700000002980232,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/bidirectional-reflectance-distribution-function","display_name":"bidirectional reflectance distribution function","score":0.9990000128746033},{"id":"https://openalex.org/keywords/far-infrared-reflectance","display_name":"far-infrared reflectivity","score":0.7210000157356262},{"id":"https://openalex.org/keywords/stray-light","display_name":"stray light","score":0.6470000147819519},{"id":"https://openalex.org/keywords/diffraction-enhancement","display_name":"diffraction enhancement","score":0.8309999704360962},{"id":"https://openalex.org/keywords/diffuse-reflector","display_name":"diffuse reflector","score":0.45500001311302185},{"id":"https://openalex.org/keywords/specular-reflectance","display_name":"specular reflectance","score":0.4569999873638153}],"concepts":[{"id":"https://openalex.org/C151596937","wikidata":"https://www.wikidata.org/wiki/Q856980","display_name":"Bidirectional reflectance distribution function","level":3,"score":0.959618866443634},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.6276512742042542},{"id":"https://openalex.org/C2780848835","wikidata":"https://www.wikidata.org/wiki/Q4213","display_name":"Telescope","level":2,"score":0.6149532794952393},{"id":"https://openalex.org/C108597893","wikidata":"https://www.wikidata.org/wiki/Q663650","display_name":"Reflectivity","level":2,"score":0.5284878015518188},{"id":"https://openalex.org/C158355884","wikidata":"https://www.wikidata.org/wiki/Q11388","display_name":"Infrared","level":2,"score":0.5110572576522827},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.5104243159294128},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.49064794182777405},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.444404661655426},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.4191814064979553},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.20677202939987183}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1117/12.932688","doi":"https://doi.org/10.1117/12.932688","is_oa":false,"landing_page_url":"https://doi.org/10.1117/12.932688","pdf_url":null,"source":{"id":"https://openalex.org/S183492911","display_name":"Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE","issn_l":"0277-786X","issn":["0277-786X","1996-756X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","norway-1"],"host_organization":"https://openalex.org/P4310315543","host_organization_name":"SPIE","host_organization_lineage":["https://openalex.org/P4310315543"],"host_organization_lineage_names":["SPIE"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"SPIE Proceedings","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320332374","display_name":"Ames Research Center","ror":"https://ror.org/02acart68"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":4,"referenced_works":["https://openalex.org/W2037914589","https://openalex.org/W2048543494","https://openalex.org/W2071211896","https://openalex.org/W2136916741"],"related_works":["https://openalex.org/W1665384158","https://openalex.org/W2561255154","https://openalex.org/W2025589966","https://openalex.org/W1991175812","https://openalex.org/W2071211896","https://openalex.org/W2034440561","https://openalex.org/W2049835861","https://openalex.org/W7221086355","https://openalex.org/W2084056957","https://openalex.org/W2010033205"],"abstract_inverted_index":{"AbstractMeasurements":[0],"of":[1,12,19,81,126,136,142],"the":[2,29,69,82,90,94,98,111,121,140,143],"far":[3],"-infrared":[4],"bidirectional":[5],"reflectance":[6],"distribution":[7,123],"functions":[8],"(BRDF)of":[9],"four":[10,127],"samples":[11],"Martin":[13,41,132],"Black":[14,42,133],"coating":[15],"and":[16],"one":[17],"sample":[18,67,135],"gold-":[20],"coated":[21,65,130],"aluminum":[22,66],"from":[23,68,89,139],"thetelescope":[24],"to":[25,119],"be":[26],"flown":[27],"on":[28],"Infrared":[30,113,144],"Astronomy":[31,145],"Satellite":[32,146],"(IRAS)":[33],"are":[34],"presented.":[35],"At":[36],"incidenceangles":[37],"near":[38],"35":[39],"\u00b0,":[40],"is":[43],"a":[44,72,77],"diffuse":[45],"reflector":[46],"at":[47,105],"wavelengths":[48],"as":[49,51],"long":[50],"36":[52],"tim.":[53],"How-ever,":[54],"by":[55],"112":[56],"pm":[57],"it":[58],"has":[59,71],"become":[60],"quite":[61],"specular.":[62],"The":[63],"gold":[64],"IRASsunshield":[70],"visible":[73],"grain":[74],"which":[75],"causes":[76],"strong":[78],"diffraction":[79],"enhancement":[80,88],"BRDF":[83],"atlarge":[84],"nonspecular":[85,100],"angles.":[86],"This":[87],"sunshield":[91],"will":[92],"increase":[93],"stray":[95],"lightlevel":[96],"inside":[97],"telescope.IntroductionA":[99],"reflectometer":[101],"(NSR),":[102],"recently":[103],"constructed":[104],"Ames":[106],"Research":[107],"Center":[108],"in":[109],"supportof":[110],"Shuttle":[112],"Telescope":[114],"Facility":[115],"(SIRTF),":[116],"was":[117],"used":[118],"measure":[120],"bidirectionalreflectance":[122],"function":[124],"(BRDF)":[125],"light":[128],"baffles":[129],"with":[131],"andone":[134],"sunshade":[137],"material":[138],"telescope":[141]},"counts_by_year":[{"year":2016,"cited_by_count":1}],"updated_date":"2026-10-30T12:39:25.321706","created_date":"2016-06-24T00:00:00"}
