High Pressure Gas TPC Development Studies for the DUNE Near Detector

DUNE 近探测器的高压气体 TPC 开发研究

• 批准号: 2737479
• 金额: --
• 依托单位: University of Warwick
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2737479
• 关键词: Pressure; Gas; TPC; Development; Studies

Antimatter in the universe is so negligible that our world exists long enough for intelligent life to evolve. But our knowledge says otherwise: By the book, all matter should have obliterated together with antimatter in equal parts. The only key to unlocking this puzzle comes from the behavioural difference between neutrinos and anti(matter-)neutrinos, which can be studied by accelerator-based neutrino experiments. With more powerful accelerators and sophisticated detectors, we are on the way to examining neutrino interactions with unprecedented precision. The Deep Underground Neutrino Experiment (DUNE) is the next-generation neutrino experiment in the US designed to look for the tiny asymmetry between neutrinos and antineutrinos and search for rare events that originate from physics beyond the Standard Model of particle physics. DUNE will do this by measuring neutrino oscillations, a phenomenon where neutrinos change type on their way from their production at Fermilab to their detection by the Far Detector (FD) 1200 km away. The near detector (ND) complex consists of a liquid argon TPC, a High-Pressure gas Time Projection Chamber (HPgTPC) enclosed by a solenoid and a calorimeter, and an on-axis beam monitor. This complex is being designed to precisely characterise the neutrino beams and to study neutrino-nucleus interactions with unprecedented details so that the respective systematic errors contributing to the oscillation measurements are much better understood.The HPgTPC of the DUNE ND, currently being designed, will be the ultimate detector to study neutrino interactions due to its very low detection threshold, full angular acceptance, and very large high-pressure gas volume providing a large target mass. This research will focus on the gas studies and readout technology development and provide a technical solution to the HPgTPC gas quality control that is considered a high priority. Embedded in the Warwick TPC Platform, the project will provide strong local support for accelerator-neutrino gas TPC R&D in the UK. It would represent a very timely push for further R&D into the HPgTPC concept in the UK and would complement well efforts to extend UK contributions to the DUNE Near Detector project.

宇宙中的反物质忽略不计，以至于我们的世界存在足够长的智能生活。但是我们的知识是另外的：用本书，所有物质都应该在同等的部分中与反物质一起消失。解锁此难题的唯一关键来自中微子和抗（物质）中微子之间的行为差​​异，这可以通过基于加速器的中微子实验来研究。借助更强大的加速器和复杂的探测器，我们正在以前所未有的精度检查中微子相互作用。深层中微子实验（Dune）是美国的下一代中微子实验，旨在寻找中微子和抗肿瘤之间的微小不对称性，并寻找源于粒子物理标准模型以外的物理学的罕见事件。沙丘将通过测量中微子振荡来做到这一点，中微子振荡是一种现象，其中中微子在从费米拉布（Fermilab）的生产到远处检测器（FD）（1200 km）的途中改变了类型。近检测器（ND）复合物由液体氩TPC，一个由螺线管和量热计包含的高压气体时间投影室（HPGTPC）以及轴上梁监视器。该复合物的设计目的是精确地表征中微子束并研究中微子核心的相互作用，并与前所未有的细节相互作用，以便更好地理解导致振荡测量的各自的系统误差。高压气量提供较大的目标质量。这项研究将重点放在天然气研究和读取技术开发上，并为HPGTPC气体质量控制提供技术解决方案，这被认为是很高的优先事项。该项目嵌入了Warwick TPC平台中，将为英国的Accelerator-Neutrino Gas TPC R＆D提供强有力的本地支持。这将是一个非常及时的推动，向英国的HPGTPC概念进行进一步的研发，并将为扩大英国对Dune附近探测器项目的贡献提供很好的努力。