{"id":"https://openalex.org/W7220989396","doi":"https://doi.org/10.48550/arxiv.2610.10464","title":"Self-Shielded Multigroup Microscopic Cross Section Generation Using Targeted Artificial Neural Networks","display_name":"Self-Shielded Multigroup Microscopic Cross Section Generation Using Targeted Artificial Neural Networks","publication_year":2026,"publication_date":"2026-10-07","ids":{"openalex":"https://openalex.org/W7220989396","doi":"https://doi.org/10.48550/arxiv.2610.10464"},"language":"en","primary_location":{"id":"pmh:oai:arXiv.org:2610.10464","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2610.10464","pdf_url":"https://arxiv.org/pdf/2610.10464","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"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":"text"},"volume":null,"type":"preprint","is_traditional":true,"indexed_in":["arxiv","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/2610.10464","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5157987359","display_name":"Joshua Nichols","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I167576493","display_name":"Colorado School of Mines","ror":"https://ror.org/04raf6v53","country_code":"US","type":"education","lineage":["https://openalex.org/I167576493"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Nichols, Joshua","raw_affiliation_strings":["Colorado School of Mines , 1012 14th St. , Golden , CO"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Colorado School of Mines , 1012 14th St. , Golden , CO","institution_ids":["https://openalex.org/I167576493"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109537802","display_name":"Andrew Osborne","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I167576493","display_name":"Colorado School of Mines","ror":"https://ror.org/04raf6v53","country_code":"US","type":"education","lineage":["https://openalex.org/I167576493"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Osborne, Andrew","raw_affiliation_strings":["Colorado School of Mines , 1012 14th St. , Golden , CO"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Colorado School of Mines , 1012 14th St. , Golden , CO","institution_ids":["https://openalex.org/I167576493"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5137265321","display_name":"Ben Whewell","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1343871089","display_name":"Los Alamos National Laboratory","ror":"https://ror.org/01e41cf67","country_code":"US","type":"facility","lineage":["https://openalex.org/I1330989302","https://openalex.org/I1343871089","https://openalex.org/I198811213","https://openalex.org/I4210120050"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Whewell, Ben","raw_affiliation_strings":["Los Alamos National Laboratory , Los Alamos , NM"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Los Alamos National Laboratory , Los Alamos , NM","institution_ids":["https://openalex.org/I1343871089"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5081509452","display_name":"Nathan Gibson","orcid":"https://orcid.org/0000-0001-7717-0364","observed_orcids":["https://orcid.org/0000-0001-7717-0364"]},"institutions":[{"id":"https://openalex.org/I1343871089","display_name":"Los Alamos National Laboratory","ror":"https://ror.org/01e41cf67","country_code":"US","type":"facility","lineage":["https://openalex.org/I1330989302","https://openalex.org/I1343871089","https://openalex.org/I198811213","https://openalex.org/I4210120050"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Gibson, Nathan","raw_affiliation_strings":["Los Alamos National Laboratory , Los Alamos , NM"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Los Alamos National Laboratory , Los Alamos , NM","institution_ids":["https://openalex.org/I1343871089"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10597","display_name":"Nuclear reactor physics and engineering","score":0.9887999892234802,"subfield":{"id":"https://openalex.org/subfields/2104","display_name":"Nuclear Energy and Engineering"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10597","display_name":"Nuclear reactor physics and engineering","score":0.9887999892234802,"subfield":{"id":"https://openalex.org/subfields/2104","display_name":"Nuclear Energy and Engineering"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10093","display_name":"Nuclear physics research studies","score":0.003599999938160181,"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/T11242","display_name":"Nuclear Materials and Properties","score":0.0008999999845400453,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/self-shielding","display_name":"self-shielding","score":0.921999990940094},{"id":"https://openalex.org/keywords/microscopic-cross-sections","display_name":"microscopic cross sections","score":0.8569999933242798},{"id":"https://openalex.org/keywords/neural-network","display_name":"artificial neural networks","score":0.9800000190734863},{"id":"https://openalex.org/keywords/uo2-fuel","display_name":"UO2 fuel","score":0.9229999780654907},{"id":"https://openalex.org/keywords/light-water-reactors","display_name":"light water reactors","score":0.8050000071525574},{"id":"https://openalex.org/keywords/openmc","display_name":"OpenMC","score":0.7400000095367432},{"id":"https://openalex.org/keywords/fission-cross-sections","display_name":"fission cross sections","score":0.5920000076293945},{"id":"https://openalex.org/keywords/scattering-cross-section","display_name":"scattering cross section","score":0.6759999990463257},{"id":"https://openalex.org/keywords/burnup-dependence","display_name":"burnup dependence","score":0.5080000162124634},{"id":"https://openalex.org/keywords/fuel-enrichment","display_name":"fuel enrichment","score":0.5410000085830688}],"concepts":[{"id":"https://openalex.org/C177571023","wikidata":"https://www.wikidata.org/wiki/Q108149","display_name":"Nuclide","level":2,"score":0.801800012588501},{"id":"https://openalex.org/C50644808","wikidata":"https://www.wikidata.org/wiki/Q192776","display_name":"Artificial neural network","level":2,"score":0.7221999764442444},{"id":"https://openalex.org/C52234038","wikidata":"https://www.wikidata.org/wiki/Q17128025","display_name":"Cross section (physics)","level":2,"score":0.5584999918937683},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5126000046730042},{"id":"https://openalex.org/C27181475","wikidata":"https://www.wikidata.org/wiki/Q541014","display_name":"Cross-validation","level":2,"score":0.5116999745368958},{"id":"https://openalex.org/C2778260006","wikidata":"https://www.wikidata.org/wiki/Q306811","display_name":"Burnup","level":2,"score":0.48539999127388},{"id":"https://openalex.org/C146849305","wikidata":"https://www.wikidata.org/wiki/Q370766","display_name":"Ground truth","level":2,"score":0.45019999146461487},{"id":"https://openalex.org/C2779281675","wikidata":"https://www.wikidata.org/wiki/Q7068046","display_name":"Nuclear data","level":3,"score":0.43959999084472656},{"id":"https://openalex.org/C152568617","wikidata":"https://www.wikidata.org/wiki/Q2348","display_name":"Neutron","level":2,"score":0.4244999885559082},{"id":"https://openalex.org/C58489278","wikidata":"https://www.wikidata.org/wiki/Q1172284","display_name":"Data set","level":2,"score":0.41519999504089355},{"id":"https://openalex.org/C186370098","wikidata":"https://www.wikidata.org/wiki/Q442787","display_name":"Energy (signal processing)","level":2,"score":0.4099000096321106},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.3815999925136566},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3714999854564667},{"id":"https://openalex.org/C16910744","wikidata":"https://www.wikidata.org/wiki/Q7705759","display_name":"Test data","level":2,"score":0.3555999994277954},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3553999960422516},{"id":"https://openalex.org/C116915560","wikidata":"https://www.wikidata.org/wiki/Q83504","display_name":"Nuclear engineering","level":1,"score":0.33629998564720154},{"id":"https://openalex.org/C55037315","wikidata":"https://www.wikidata.org/wiki/Q5421151","display_name":"Experimental data","level":2,"score":0.33570000529289246},{"id":"https://openalex.org/C122383733","wikidata":"https://www.wikidata.org/wiki/Q865920","display_name":"Approximation error","level":2,"score":0.3319000005722046},{"id":"https://openalex.org/C2778472420","wikidata":"https://www.wikidata.org/wiki/Q378379","display_name":"Uranium dioxide","level":3,"score":0.31380000710487366},{"id":"https://openalex.org/C104015590","wikidata":"https://www.wikidata.org/wiki/Q1451740","display_name":"Neutron scattering","level":3,"score":0.31369999051094055},{"id":"https://openalex.org/C60478076","wikidata":"https://www.wikidata.org/wiki/Q3036835","display_name":"Reference data","level":2,"score":0.2971000075340271},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.2630999982357025},{"id":"https://openalex.org/C108583219","wikidata":"https://www.wikidata.org/wiki/Q197536","display_name":"Deep learning","level":2,"score":0.25189998745918274},{"id":"https://openalex.org/C66963500","wikidata":"https://www.wikidata.org/wiki/Q3338735","display_name":"Neutron transport","level":3,"score":0.25119999051094055}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:arXiv.org:2610.10464","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2610.10464","pdf_url":"https://arxiv.org/pdf/2610.10464","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"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":"text"},{"id":"doi:10.48550/arxiv.2610.10464","doi":"https://doi.org/10.48550/arxiv.2610.10464","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2610.10464","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Preprint"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:2610.10464","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2610.10464","pdf_url":"https://arxiv.org/pdf/2610.10464","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"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":"text"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320306084","display_name":"U.S. Department of Energy","ror":"https://ror.org/01bj3aw27"},{"id":"https://openalex.org/F4320332364","display_name":"Office of Nuclear Energy","ror":"https://ror.org/05tj7dm33"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7220989396.pdf","grobid_xml":"https://content.openalex.org/works/W7220989396.grobid-xml"},"referenced_works_count":5,"referenced_works":["https://openalex.org/W4232966339","https://openalex.org/W4387083352","https://openalex.org/W4400767168","https://openalex.org/W7104439442","https://openalex.org/W7165732018"],"related_works":["https://openalex.org/W7165732018","https://openalex.org/W3131111245","https://openalex.org/W4410286844","https://openalex.org/W4319791507","https://openalex.org/W3083754729","https://openalex.org/W4200609452","https://openalex.org/W7020750183","https://openalex.org/W4323034167","https://openalex.org/W4308453399","https://openalex.org/W4400801574"],"abstract_inverted_index":{"Multigroup":[0],"neutron":[1],"transport":[2],"models":[3],"are":[4,132,183,225],"used":[5,226],"widely":[6],"in":[7,52,58,83,109,169,209,227,238],"simulation":[8],"codes":[9,24],"due":[10],"to":[11,18,40,215],"their":[12,59],"memory":[13],"and":[14,38,65,94,105,139,159,197,204],"compute":[15],"efficiency":[16],"compared":[17],"continuous":[19,144],"energy":[20,145,172],"methods.":[21],"However,":[22],"multigroup":[23,47,229],"rely":[25],"on":[26,218],"nuclear":[27,48],"data":[28,49,141,212],"prepared":[29,51],"using":[30,134,143,199],"approximate":[31],"methods":[32],"that":[33,71],"require":[34,118],"significant":[35],"manual":[36],"effort":[37],"expertise":[39],"account":[41],"for":[42,61,164],"self-shielding":[43],"effects.":[44],"In":[45],"addition,":[46],"libraries":[50],"this":[53],"way":[54],"can":[55,76],"be":[56],"limited":[57],"applicability":[60],"modeling":[62],"diverse":[63],"reactors":[64],"operating":[66],"conditions.":[67],"Here":[68],"we":[69],"show":[70],"trained":[72,133,150],"artificial":[73],"neural":[74,115,151,176],"networks":[75,131,152],"predict":[77,153],"self-shielded":[78,154,180],"microscopic":[79],"cross":[80,162,181,192,207,223],"sections":[81,163,182,193,208,224],"accurately":[82],"pincell":[84,147],"simulations":[85],"containing":[86],"uranium":[87],"dioxide":[88],"fuel":[89,103],"with":[90,187],"a":[91,228,234],"fixed":[92],"geometry":[93],"temperature.":[95],"The":[96,130,149,175,202],"model's":[97],"predictive":[98],"accuracy":[99],"remains":[100],"high":[101],"across":[102],"enrichment":[104],"burnup":[106],"ranges":[107],"encountered":[108],"light":[110],"water":[111],"reactors.":[112],"Critically,":[113],"the":[114,120,124,170,210,221],"networks'":[116,177],"predictions":[117,178],"only":[119],"atomic":[121],"concentration":[122],"of":[123,137,166,179,190,240],"fuel's":[125],"constituent":[126],"nuclides":[127,168],"as":[128],"inputs.":[129],"8,704":[135],"samples":[136,189],"training":[138,196],"validation":[140],"generated":[142],"OpenMC":[146,200],"simulations.":[148,201],"total,":[155],"fission,":[156],"absorption,":[157],"elastic,":[158],"total":[160],"scattering":[161],"combinations":[165],"90":[167],"CASMO-8":[171],"group":[173],"structure.":[174],"validated":[184],"by":[185],"comparison":[186],"1,500":[188],"reference":[191],"unseen":[194],"during":[195],"tallied":[198],"predicted":[203,222],"ground":[205],"truth":[206],"test":[211],"set":[213],"agree":[214],"within":[216],"0.119%":[217],"average.":[219],"When":[220],"eigenvalue":[230],"run,":[231],"they":[232],"achieve":[233],"mean":[235],"absolute":[236],"error":[237],"keff":[239],"200":[241],"pcm.":[242]},"counts_by_year":[],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2026-10-09T00:00:00"}