{"id":"https://openalex.org/W2019832356","doi":"https://doi.org/10.1109/jssc.2013.2284351","title":"A Fully Digital 8$\\,\\times\\,$16 SiPM Array for PET Applications With Per-Pixel TDCs and Real-Time Energy Output","display_name":"A Fully Digital 8$\\,\\times\\,$16 SiPM Array for PET Applications With Per-Pixel TDCs and Real-Time Energy Output","publication_year":2013,"publication_date":"2013-10-21","ids":{"openalex":"https://openalex.org/W2019832356","doi":"https://doi.org/10.1109/jssc.2013.2284351","mag":"2019832356"},"language":"en","primary_location":{"id":"doi:10.1109/jssc.2013.2284351","is_oa":true,"landing_page_url":"https://doi.org/10.1109/jssc.2013.2284351","pdf_url":"https://ieeexplore.ieee.org/ielx7/4/6690141/06642135.pdf","source":{"id":"https://openalex.org/S83637746","display_name":"IEEE Journal of Solid-State Circuits","issn_l":"0018-9200","issn":["0018-9200","1558-173X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Journal of Solid-State Circuits","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"bronze","oa_url":"https://ieeexplore.ieee.org/ielx7/4/6690141/06642135.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5112833100","display_name":"Leo H. C. Braga","orcid":null},"institutions":[{"id":"https://openalex.org/I193223587","display_name":"University of Trento","ror":"https://ror.org/05trd4x28","country_code":"IT","type":"education","lineage":["https://openalex.org/I193223587"]},{"id":"https://openalex.org/I2277624104","display_name":"Fondazione Bruno Kessler","ror":"https://ror.org/01j33xk10","country_code":"IT","type":"facility","lineage":["https://openalex.org/I2277624104"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Leo H. C. Braga","raw_affiliation_strings":["Fondazione Bruno Kessler (FBK), Trento, Italy","University of Trento , Trento , Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Fondazione Bruno Kessler (FBK), Trento, Italy","institution_ids":["https://openalex.org/I2277624104"]},{"raw_affiliation_string":"University of Trento , Trento , Italy","institution_ids":["https://openalex.org/I193223587"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5018998302","display_name":"Leonardo Gasparini","orcid":"https://orcid.org/0000-0003-2622-1488"},"institutions":[{"id":"https://openalex.org/I2277624104","display_name":"Fondazione Bruno Kessler","ror":"https://ror.org/01j33xk10","country_code":"IT","type":"facility","lineage":["https://openalex.org/I2277624104"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Leonardo Gasparini","raw_affiliation_strings":["Fondazione Bruno Kessler (FBK), Trento, Italy","[Fondazione Bruno Kessler, Trento, (Italy)]"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Fondazione Bruno Kessler (FBK), Trento, Italy","institution_ids":["https://openalex.org/I2277624104"]},{"raw_affiliation_string":"[Fondazione Bruno Kessler, Trento, (Italy)]","institution_ids":["https://openalex.org/I2277624104"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109322532","display_name":"Lindsay A. Grant","orcid":null},"institutions":[{"id":"https://openalex.org/I4210135508","display_name":"STMicroelectronics (United Kingdom)","ror":"https://ror.org/0442wxc77","country_code":"GB","type":"company","lineage":["https://openalex.org/I131827901","https://openalex.org/I4210135508"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Lindsay Grant","raw_affiliation_strings":["STMicroelectronics, Edinburgh, United Kingdom","STMicroelectron., Edinburgh, UK"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"STMicroelectronics, Edinburgh, United Kingdom","institution_ids":["https://openalex.org/I4210135508"]},{"raw_affiliation_string":"STMicroelectron., Edinburgh, UK","institution_ids":["https://openalex.org/I4210135508"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103198569","display_name":"Robert Henderson","orcid":"https://orcid.org/0000-0002-0398-7520"},"institutions":[{"id":"https://openalex.org/I98677209","display_name":"University of Edinburgh","ror":"https://ror.org/01nrxwf90","country_code":"GB","type":"education","lineage":["https://openalex.org/I98677209"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Robert K. Henderson","raw_affiliation_strings":["University of Edinburgh, Edinburgh, United Kingdom","University of Edinburgh, Edinburgh , UK"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Edinburgh, Edinburgh, United Kingdom","institution_ids":["https://openalex.org/I98677209"]},{"raw_affiliation_string":"University of Edinburgh, Edinburgh , UK","institution_ids":["https://openalex.org/I98677209"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5076468405","display_name":"Nicola Massari","orcid":"https://orcid.org/0000-0002-1863-4859"},"institutions":[{"id":"https://openalex.org/I193223587","display_name":"University of Trento","ror":"https://ror.org/05trd4x28","country_code":"IT","type":"education","lineage":["https://openalex.org/I193223587"]},{"id":"https://openalex.org/I2277624104","display_name":"Fondazione Bruno Kessler","ror":"https://ror.org/01j33xk10","country_code":"IT","type":"facility","lineage":["https://openalex.org/I2277624104"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Nicola Massari","raw_affiliation_strings":["Fondazione Bruno Kessler (FBK), Trento, Italy","University of Trento , Trento , Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Fondazione Bruno Kessler (FBK), Trento, Italy","institution_ids":["https://openalex.org/I2277624104"]},{"raw_affiliation_string":"University of Trento , Trento , Italy","institution_ids":["https://openalex.org/I193223587"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5088173332","display_name":"Matteo Perenzoni","orcid":"https://orcid.org/0000-0001-8777-1593"},"institutions":[{"id":"https://openalex.org/I2277624104","display_name":"Fondazione Bruno Kessler","ror":"https://ror.org/01j33xk10","country_code":"IT","type":"facility","lineage":["https://openalex.org/I2277624104"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Matteo Perenzoni","raw_affiliation_strings":["Fondazione Bruno Kessler (FBK), Trento, Italy","[Fondazione Bruno Kessler, Trento, (Italy)]"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Fondazione Bruno Kessler (FBK), Trento, Italy","institution_ids":["https://openalex.org/I2277624104"]},{"raw_affiliation_string":"[Fondazione Bruno Kessler, Trento, (Italy)]","institution_ids":["https://openalex.org/I2277624104"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111557995","display_name":"David Stoppa","orcid":null},"institutions":[{"id":"https://openalex.org/I2277624104","display_name":"Fondazione Bruno Kessler","ror":"https://ror.org/01j33xk10","country_code":"IT","type":"facility","lineage":["https://openalex.org/I2277624104"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"David Stoppa","raw_affiliation_strings":["Fondazione Bruno Kessler (FBK), Trento, Italy","[Fondazione Bruno Kessler, Trento, (Italy)]"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Fondazione Bruno Kessler (FBK), Trento, Italy","institution_ids":["https://openalex.org/I2277624104"]},{"raw_affiliation_string":"[Fondazione Bruno Kessler, Trento, (Italy)]","institution_ids":["https://openalex.org/I2277624104"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5090433720","display_name":"Richard Walker","orcid":"https://orcid.org/0000-0001-9736-3497"},"institutions":[{"id":"https://openalex.org/I98677209","display_name":"University of Edinburgh","ror":"https://ror.org/01nrxwf90","country_code":"GB","type":"education","lineage":["https://openalex.org/I98677209"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Richard Walker","raw_affiliation_strings":["University of Edinburgh, Edinburgh, United Kingdom","University of Edinburgh, Edinburgh , UK"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Edinburgh, Edinburgh, United Kingdom","institution_ids":["https://openalex.org/I98677209"]},{"raw_affiliation_string":"University of Edinburgh, Edinburgh , UK","institution_ids":["https://openalex.org/I98677209"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":21.834,"has_fulltext":true,"cited_by_count":193,"citation_normalized_percentile":{"value":0.99746675,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":96,"max":100},"biblio":{"volume":"49","issue":"1","first_page":"301","last_page":"314"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11216","display_name":"Radiation Detection and Scintillator Technologies","score":1.0,"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/T11216","display_name":"Radiation Detection and Scintillator Technologies","score":1.0,"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/T10522","display_name":"Medical Imaging Techniques and Applications","score":0.9995999932289124,"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"}},{"id":"https://openalex.org/T11044","display_name":"Particle Detector Development and Performance","score":0.9987000226974487,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/silicon-photomultiplier","display_name":"Silicon photomultiplier","score":0.8460162281990051},{"id":"https://openalex.org/keywords/pixel","display_name":"Pixel","score":0.7732110023498535},{"id":"https://openalex.org/keywords/lyso","display_name":"Lyso-","score":0.6732586026191711},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.5840693712234497},{"id":"https://openalex.org/keywords/energy","display_name":"Energy (signal processing)","score":0.5557074546813965},{"id":"https://openalex.org/keywords/chip","display_name":"Chip","score":0.507513165473938},{"id":"https://openalex.org/keywords/detector","display_name":"Detector","score":0.4753408432006836},{"id":"https://openalex.org/keywords/timestamp","display_name":"Timestamp","score":0.4652481973171234},{"id":"https://openalex.org/keywords/scintillator","display_name":"Scintillator","score":0.45903825759887695},{"id":"https://openalex.org/keywords/cmos","display_name":"CMOS","score":0.451009601354599},{"id":"https://openalex.org/keywords/resolution","display_name":"Resolution (logic)","score":0.4345041811466217},{"id":"https://openalex.org/keywords/computer-hardware","display_name":"Computer hardware","score":0.3831557035446167},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.33338218927383423},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.2664741277694702},{"id":"https://openalex.org/keywords/optoelectronics","display_name":"Optoelectronics","score":0.20938414335250854},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.16693541407585144},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.10576143860816956},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.07658219337463379}],"concepts":[{"id":"https://openalex.org/C104335537","wikidata":"https://www.wikidata.org/wiki/Q1085747","display_name":"Silicon photomultiplier","level":4,"score":0.8460162281990051},{"id":"https://openalex.org/C160633673","wikidata":"https://www.wikidata.org/wiki/Q355198","display_name":"Pixel","level":2,"score":0.7732110023498535},{"id":"https://openalex.org/C2780330291","wikidata":"https://www.wikidata.org/wiki/Q6710262","display_name":"Lyso-","level":4,"score":0.6732586026191711},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.5840693712234497},{"id":"https://openalex.org/C186370098","wikidata":"https://www.wikidata.org/wiki/Q442787","display_name":"Energy (signal processing)","level":2,"score":0.5557074546813965},{"id":"https://openalex.org/C165005293","wikidata":"https://www.wikidata.org/wiki/Q1074500","display_name":"Chip","level":2,"score":0.507513165473938},{"id":"https://openalex.org/C94915269","wikidata":"https://www.wikidata.org/wiki/Q1834857","display_name":"Detector","level":2,"score":0.4753408432006836},{"id":"https://openalex.org/C113954288","wikidata":"https://www.wikidata.org/wiki/Q186885","display_name":"Timestamp","level":2,"score":0.4652481973171234},{"id":"https://openalex.org/C161694136","wikidata":"https://www.wikidata.org/wiki/Q910990","display_name":"Scintillator","level":3,"score":0.45903825759887695},{"id":"https://openalex.org/C46362747","wikidata":"https://www.wikidata.org/wiki/Q173431","display_name":"CMOS","level":2,"score":0.451009601354599},{"id":"https://openalex.org/C138268822","wikidata":"https://www.wikidata.org/wiki/Q1051925","display_name":"Resolution (logic)","level":2,"score":0.4345041811466217},{"id":"https://openalex.org/C9390403","wikidata":"https://www.wikidata.org/wiki/Q3966","display_name":"Computer hardware","level":1,"score":0.3831557035446167},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.33338218927383423},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.2664741277694702},{"id":"https://openalex.org/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.20938414335250854},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.16693541407585144},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.10576143860816956},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.07658219337463379},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/jssc.2013.2284351","is_oa":true,"landing_page_url":"https://doi.org/10.1109/jssc.2013.2284351","pdf_url":"https://ieeexplore.ieee.org/ielx7/4/6690141/06642135.pdf","source":{"id":"https://openalex.org/S83637746","display_name":"IEEE Journal of Solid-State Circuits","issn_l":"0018-9200","issn":["0018-9200","1558-173X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Journal of Solid-State Circuits","raw_type":"journal-article"},{"id":"pmh:oai:zenodo.org:102903","is_oa":true,"landing_page_url":"https://www.openaccessrepository.it/record/102903","pdf_url":null,"source":{"id":"https://openalex.org/S4306402478","display_name":"INFM-OAR (INFN Catania)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210116497","host_organization_name":"Istituto Nazionale di Fisica Nucleare, Sezione di Catania","host_organization_lineage":["https://openalex.org/I4210116497"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":{"id":"doi:10.1109/jssc.2013.2284351","is_oa":true,"landing_page_url":"https://doi.org/10.1109/jssc.2013.2284351","pdf_url":"https://ieeexplore.ieee.org/ielx7/4/6690141/06642135.pdf","source":{"id":"https://openalex.org/S83637746","display_name":"IEEE Journal of Solid-State Circuits","issn_l":"0018-9200","issn":["0018-9200","1558-173X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Journal of Solid-State Circuits","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7","score":0.9100000262260437}],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2019832356.pdf","grobid_xml":"https://content.openalex.org/works/W2019832356.grobid-xml"},"referenced_works_count":35,"referenced_works":["https://openalex.org/W146667522","https://openalex.org/W1975496472","https://openalex.org/W1976698362","https://openalex.org/W1979856811","https://openalex.org/W1996864653","https://openalex.org/W1997944918","https://openalex.org/W2001887016","https://openalex.org/W2003133810","https://openalex.org/W2018380908","https://openalex.org/W2031397488","https://openalex.org/W2045965363","https://openalex.org/W2076631462","https://openalex.org/W2081375306","https://openalex.org/W2103010228","https://openalex.org/W2125883591","https://openalex.org/W2127953553","https://openalex.org/W2137424135","https://openalex.org/W2137530840","https://openalex.org/W2138074766","https://openalex.org/W2138591630","https://openalex.org/W2143110302","https://openalex.org/W2158152483","https://openalex.org/W2160366775","https://openalex.org/W2160667033","https://openalex.org/W2163555537","https://openalex.org/W2167874334","https://openalex.org/W2542302144","https://openalex.org/W2543334442","https://openalex.org/W2543462139","https://openalex.org/W2544354035","https://openalex.org/W2546572796","https://openalex.org/W2547244022","https://openalex.org/W2588652871","https://openalex.org/W3150652034","https://openalex.org/W6729280280"],"related_works":["https://openalex.org/W2138226061","https://openalex.org/W3038595806","https://openalex.org/W2966550174","https://openalex.org/W2043800983","https://openalex.org/W2052301970","https://openalex.org/W2155875264","https://openalex.org/W2542554006","https://openalex.org/W2783176426","https://openalex.org/W4367663368","https://openalex.org/W2546572796"],"abstract_inverted_index":{"An":[0,70],"8":[1],"\u00d7":[2,23,115,117],"16":[3],"pixel":[4,20,51,78],"array":[5,79],"based":[6],"on":[7,74],"CMOS":[8],"small-area":[9],"silicon":[10],"photomultipliers":[11],"(mini-SiPMs)":[12],"detectors":[13],"for":[14,32,94],"PET":[15],"applications":[16],"is":[17,21,123],"reported.":[18],"Each":[19],"570":[22],"610":[24],"\u03bcm2in":[25],"size":[26],"and":[27,57,65,133],"contains":[28],"four":[29],"digital":[30],"mini-SiPMs,":[31],"a":[33,40,58,126,134],"total":[34,54,83],"of":[35,44,76,108,131,138],"720":[36],"SPADs,":[37],"resulting":[38],"in":[39,105],"full":[41],"chip":[42],"fill-factor":[43],"35.7%.":[45],"For":[46],"each":[47],"gamma":[48,98,109,128],"detection,":[49],"the":[50,53,77,81,96],"provides":[52],"detected":[55],"energy":[56,129],"timestamp,":[59],"obtained":[60],"through":[61],"two":[62,66],"7-b":[63],"counters":[64],"12-b":[67],"64-ps":[68],"TDCs.":[69],"adder":[71],"tree":[72],"overlaid":[73],"top":[75],"sums":[80],"sensor":[82],"counts":[84],"at":[85,121],"up":[86],"to":[87],"100":[88],"Msamples/s,":[89],"which":[90],"are":[91],"then":[92],"used":[93],"detecting":[95],"asynchronous":[97],"events":[99],"on-chip,":[100],"while":[101],"also":[102],"being":[103],"output":[104],"real-time.":[106],"Characterization":[107],"detection":[110],"performance":[111],"with":[112],"an":[113],"3":[114,116],"5":[118],"mm3LYSO":[119],"scintillator":[120],"20\u00b0C":[122],"reported,":[124],"showing":[125],"511-keV":[127],"resolution":[130,137],"10.9%":[132],"coincidence":[135],"timing":[136],"399":[139],"ps.":[140]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":6},{"year":2024,"cited_by_count":12},{"year":2023,"cited_by_count":7},{"year":2022,"cited_by_count":9},{"year":2021,"cited_by_count":24},{"year":2020,"cited_by_count":14},{"year":2019,"cited_by_count":18},{"year":2018,"cited_by_count":20},{"year":2017,"cited_by_count":19},{"year":2016,"cited_by_count":21},{"year":2015,"cited_by_count":23},{"year":2014,"cited_by_count":15},{"year":2013,"cited_by_count":3}],"updated_date":"2026-07-29T09:40:50.615796","created_date":"2025-10-10T00:00:00"}