IsoDAR Neutrino Target R&D and Engineering

IsoDAR 中微子目标 R

• 批准号: 1707969
• 负责人: Michael Shaevitz
• 金额: $ 40.21万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-07-01 至 2025-06-30
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1707969&HistoricalAwards=false
• 关键词: IsoDAR; Neutrino; Target; R&D; Engineering

Neutrinos from accelerators and nuclear reactors have played a central role in our understanding of the properties of these elusive, hard-to-observe fundamental particles. Three different types of neutrino are known to exist, having been detected through their interaction via one of the known forces of nature. A fourth type of neutrino has been postulated, a so-called light sterile neutrino, that is presumed to only interact via gravity. This award funds the R&D and engineering necessary to bring the IsoDAR (Isotope Decay-At-Rest) experiment from the stage of a Conceptual Design Report to a Preliminary Design Report. IsoDAR is a novel, pure electron-antineutrino source that, when paired with an underground detector, allows for searches for sterile neutrinos and non-standard interactions. The issue that needs to be addressed is the high intensity targeting on a neutrino production target which has, so far, been studied with simulations and some initial engineering studies.Associated with this project, this program addresses four areas: 1) development of a globally competitive STEM workforce; 2) increased participation of women and minorities; 3) increased partnerships between academia and industry; and 4) improved well-being of individuals in society. This project will include a graduate student and students from the summer REU program, which averages 75% female participants. It will give them the opportunity to apprentice with industry contractors. Finally, this work has relevance for strong industrial collaboration because of the use of bright accelerators for isotope production and Accelerator Driven Systems (ADS) technology, applied, for example, to driving thorium reactors, thus supporting the development of safe nuclear energy sources.The IsoDAR antineutrino rates seem achievable with the proposed proton beam rates, but target cooling and radiation safety issues need more design work coupled with simulations. In addition, the target region has to use difficult materials such as lithium and beryllium to allow a large amount of 8Li to be produced. Thus, the design of the neutrino production target needs to be carefully engineered. The work being funded in this award is to bring the target engineering and cooling simulations to the level of a full detailed design with realistic costing. It will also fund a prototype test of the cooling simulation. The proposed target and cooling design study will explore the feasibility of new methods to target very high intensity beams. This is of high intellectual merit since high power targetry is an important question throughout the Intensity Frontier program. Thus, this award has the potential to be transformative in multiple areas of particle physics. In addition, developing a high intensity antineutrino source that can be taken to any large hydrogen-based neutrino detector will open up a large range possible future experiments.

来自加速器和核反应堆的中微子在我们对这些难以捉摸的，难以观察的基本颗粒的特性中发挥了核心作用。已知存在三种不同类型的中微子，已经通过它们的一种已知力量之一来检测到它们的相互作用。假设了第四种类型的中微子，即所谓的轻型无菌中微子，假定仅通过重力相互作用。该奖项为将ISODAR（同位素衰减）实验从概念设计报告的阶段带到初步设计报告所需的R＆D和工程资金。 ISODAR是一种新型的纯电子抗抗乙酸酯源，与地下检测器配对时，可以搜索无菌中微子和非标准相互作用。需要解决的问题是针对中微子生产目标的高强度目标，该目标已经通过模拟和一些初步的工程研究对此进行了研究。与该项目相关，该计划解决了四个领域：1）发展全球竞争激烈的STEM劳动力； 2）妇女和少数民族的参与增加； 3）学术界与工业之间的伙伴关系增加； 4）改善了社会中个人的幸福感。该项目将包括一名研究生和夏季REU计划的学生，该计划平均有75％的女性参与者。这将使他们有机会与行业承包商一起学徒。最后，这项工作与强大的工业合作相关，因为将明亮的加速器用于同位素生产和加速器驱动系统（ADS）技术，例如应用于驱动throum反应堆，从而支持安全核能的发展。同核能抗管源可用于拟议的Proton beam速率，但需要更高的设计，但需要更高的设计。此外，目标区域必须使用困难的材料，例如锂和铍，以产生大量的8LI。因此，需要精心设计中微子生产目标的设计。该奖项中资助的工作是将目标工程和冷却模拟带入具有现实成本的完整详细设计的水平。它还将资助冷却模拟的原型测试。提出的目标和冷却设计研究将探索新方法针对非常高强度梁的可行性。这是高度智力的优点，因为高力量目标是整个强度边界计划中的一个重要问题。因此，该奖项有可能在粒子物理的多个领域进行变革。此外，开发可将高强度的抗神经源源用于任何大型基于氢的中微子检测器，将开放大型范围的未来实验。

项目成果

The shielding design concept for the ISODAR neutrino target

ISODAR中微子目标的屏蔽设计概念

• DOI: 10.1088/1748-0221/15/07/t07002
• 发表时间: 2020
• 期刊: Journal of Instrumentation
• 影响因子: 1.3
• 作者: Bungau, Adriana;Alonso, Jose;Bartoszek, Larry;Conrad, Janet M.;Dunton, Edward;Shaevitz, Michael H.
• 通讯作者: Shaevitz, Michael H.

Neutrino physics opportunities with the IsoDAR source at Yemilab

• DOI: 10.1103/physrevd.105.052009
• 发表时间: 2022-03-28
• 期刊: PHYSICAL REVIEW D
• 影响因子: 5
• 作者: Alonso, J.;Arguelles, C. A.;Winklehner, D.
• 通讯作者: Winklehner, D.