Adriana Bungau, Jose Alonso, Roger Barlow, Larry Bartozsek, Janet Conrad, Michael Shaevitz, Joshua Spitz, Daniel Winklehner
{"title":"安装在地下的高功率靶的中微子产率和中子屏蔽计算","authors":"Adriana Bungau, Jose Alonso, Roger Barlow, Larry Bartozsek, Janet Conrad, Michael Shaevitz, Joshua Spitz, Daniel Winklehner","doi":"arxiv-2409.10211","DOIUrl":null,"url":null,"abstract":"With the ever increasing beam power at particle accelerator-based facilities\nfor nuclear and particle physics, radioactive isotope production, and nuclear\nengineering, targets that can withstand this power, and shielding of secondary\nparticles are becoming increasingly important. Here we present Monte Carlo (MC)\ncalculations using the well-established Geant4 software to optimise and predict\nthe antineutrino yield of a $^8$Li Decay-At-Rest (DAR) source. The source\nrelies on 600~kW of beam power from a continuous wave proton beam impinging on\na beryllium target, where spallation neutrons capture on $^7$Li to produce the\n$^8$Li. We further present an in-depth treatment of the neutron shielding\nsurrounding this target. We show that we can produce the high antineutrino flux\nneeded for the discovery-level experiment IsoDAR, searching for ``sterile''\nneutrinos (predicted new fundamental particles) and other beyond standard model\nphysics, while maintaining a neutron flux in the detector that is below natural\nbackgrounds. The methods presented in this paper are easily transferable to\nother high-power targets and their associated shielding.","PeriodicalId":501181,"journal":{"name":"arXiv - PHYS - High Energy Physics - Experiment","volume":"16 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Neutrino yield and neutron shielding calculations for a high-power target installed in an underground setting\",\"authors\":\"Adriana Bungau, Jose Alonso, Roger Barlow, Larry Bartozsek, Janet Conrad, Michael Shaevitz, Joshua Spitz, Daniel Winklehner\",\"doi\":\"arxiv-2409.10211\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"With the ever increasing beam power at particle accelerator-based facilities\\nfor nuclear and particle physics, radioactive isotope production, and nuclear\\nengineering, targets that can withstand this power, and shielding of secondary\\nparticles are becoming increasingly important. Here we present Monte Carlo (MC)\\ncalculations using the well-established Geant4 software to optimise and predict\\nthe antineutrino yield of a $^8$Li Decay-At-Rest (DAR) source. The source\\nrelies on 600~kW of beam power from a continuous wave proton beam impinging on\\na beryllium target, where spallation neutrons capture on $^7$Li to produce the\\n$^8$Li. We further present an in-depth treatment of the neutron shielding\\nsurrounding this target. We show that we can produce the high antineutrino flux\\nneeded for the discovery-level experiment IsoDAR, searching for ``sterile''\\nneutrinos (predicted new fundamental particles) and other beyond standard model\\nphysics, while maintaining a neutron flux in the detector that is below natural\\nbackgrounds. The methods presented in this paper are easily transferable to\\nother high-power targets and their associated shielding.\",\"PeriodicalId\":501181,\"journal\":{\"name\":\"arXiv - PHYS - High Energy Physics - Experiment\",\"volume\":\"16 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-09-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - PHYS - High Energy Physics - Experiment\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2409.10211\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - High Energy Physics - Experiment","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.10211","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Neutrino yield and neutron shielding calculations for a high-power target installed in an underground setting
With the ever increasing beam power at particle accelerator-based facilities
for nuclear and particle physics, radioactive isotope production, and nuclear
engineering, targets that can withstand this power, and shielding of secondary
particles are becoming increasingly important. Here we present Monte Carlo (MC)
calculations using the well-established Geant4 software to optimise and predict
the antineutrino yield of a $^8$Li Decay-At-Rest (DAR) source. The source
relies on 600~kW of beam power from a continuous wave proton beam impinging on
a beryllium target, where spallation neutrons capture on $^7$Li to produce the
$^8$Li. We further present an in-depth treatment of the neutron shielding
surrounding this target. We show that we can produce the high antineutrino flux
needed for the discovery-level experiment IsoDAR, searching for ``sterile''
neutrinos (predicted new fundamental particles) and other beyond standard model
physics, while maintaining a neutron flux in the detector that is below natural
backgrounds. The methods presented in this paper are easily transferable to
other high-power targets and their associated shielding.