Superfluid 3He dark matter detector

在这个项目中，Tineke Salmon女士将作为兰卡斯特大学物理系Quest-DMC团队的成员。这项工作将在超低温(ULT)实验室进行，与她的监督团队和ULT小组的其他成员合作。Tineke将每天与团队成员互动，接受日常非正式培训、指导和反馈。她将在每周举行的更正式的小组会议上发挥积极作用，并进行专门的个人监督。正式的绩效评估，包括讨论未来的培训需求和完成的进展，将根据兰开斯特大学博士生规定的计划进行。QUEST DMC是兰开斯特大学、皇家霍洛威大学、苏塞克斯大学和牛津大学之间的四所大学合作，由EPSRC和STFC联合资助，使用量子增强型超流体3He作为暗物质探测器。Tineke将制造并使用超导纳米机械谐振器，结合项目合作者提供的量子放大器，在超低温下建造超导3He测辐射热计。测试和建设阶段将需要6个月到12个月的时间。最终目标是通过记录它们与超流体的相互作用来探测亚GeV/c^2质量范围内的潜在暗物质粒子。在这一阶段，萨尔蒙女士将使用一台定制的兰开斯特核退磁冰箱，对一个大型超流体3He实验的数据进行操作和分析，该实验在超低温下进行了几个月的曝光时间。这项实验工作将由兰开斯特和RHUL的一个团队在理论上支持，他们正在建立实验的粒子物理模拟。这项工作将同时为超流3He的基础研究做出贡献，旨在探索超流的微观结构。

In this project, Ms. Tineke Salmon will work as a member of the QUEST-DMC team at the Department of Physics, Lancaster University. The work will be carried out in the Ultra-Low Temperature (ULT) Laboratory, working with her supervisory team and other members of the ULT group. Tineke will interact daily with members of the team, receiving daily informal training, instruction and feedback. She will take an active role in more formal group meetings on a weekly basis as well as dedicated personal supervision. Formal performance review, including discussion of future training needs and progress towards completion, will be carried out according to the program set by Lancaster University's provision for PhD students.QUEST DMC is a four-university collaboration between Lancaster, Royal Holloway, Sussex, and Oxford using Quantum Enhanced Superfluid 3He as a Dark Matter detector, jointly funded by EPSRC and STFC. Tineke will fabricate and use superconducting nanomechanical resonators, combined with quantum amplifiers provided by project collaborators, to build a superfluid 3He bolometer at ultra-low temperatures. The testing and construction phase will take 6 months to 12 months. The final aim is to detect potential dark matter particles in the sub-GeV/c^2 mass range by recording their interactions with the superfluid. In this phase Ms. Salmon will be operating and analysing data from a major superfluid 3He experiment with several months of exposure time at ultra-low temperatures using a custom-made Lancaster nuclear demagnetisation refrigerator. The experimental work will be supported theoretically by a team of Lancaster and RHUL based people building a particle-physics simulation of the experiment. This work will simultaneously contribute towards fundamental studies of superfluid 3He, aimed at exploring the microstructure of the superfluid.