Ultra-Low-Noise Transition Edge Sensors for X-ray and High-Energy Physics Applications

适用于 X 射线和高能物理应用的超低噪声过渡边缘传感器

• 批准号: 1805367
• 金额: --
• 依托单位: University of Cambridge
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1805367
• 关键词: Ultra; Low; Noise; Transition; Edge

A Transition Edge Sensor (TES) is an ultra-low-noise photon counting device. It is being developed for photon counting spectroscopic applications across large parts of the electromagnetic spectrum. The purpose of the PhD is to model, fabricate and test TESs for X-ray and high energy physics applications. The first part of the project will concentrate on understanding the behaviour of patterned superconducting bilayers using the Usadel differential equations, and then this model will be used to understand magnetic field dependence. Later work will relate to AC biased operation, modelling device-level aspects of performance, and Frequency Domain Multiplexed operation. The student will test devices fabricated in our own device processing laboratory, and will also work with the Space Research Organisation of the Netherlands to test their devices. The experimental work will require a detail knowledge of cryogenic electronics operating at 100 mK, and general cryogenic techniques. In the final phase of the project, the student will compare their numerical simulations with experimental results. The aim is to be able to create software techniques that will allow the behaviour of this very important class of device to be explored and predicted before specific designs are fabricated.

跃迁边缘传感器(TES)是一种超低噪声的光子计数设备。它正在被开发用于电磁光谱的大部分的光子计数光谱应用。PHD的目的是为X射线和高能物理应用建立、制造和测试TESS。该项目的第一部分将集中于使用Usadel微分方程来理解图案化超导双层的行为，然后这个模型将被用来理解磁场相关性。稍后的工作将涉及交流偏置操作、对设备级性能进行建模以及频域多路复用操作。这名学生将测试我们自己的设备处理实验室制造的设备，还将与荷兰空间研究组织合作测试他们的设备。实验工作将需要在100MK下运行的低温电子学的详细知识，以及一般的低温技术。在项目的最后阶段，学生将把他们的数值模拟与实验结果进行比较。其目标是能够创造软件技术，允许在制造特定设计之前探索和预测这类非常重要的设备的行为。

项目成果

Proximity effect model for x-ray transition edge sensors

X 射线过渡边缘传感器的邻近效应模型

• 发表时间: 2018
• 作者: Harwin, RC

Microscopic physics of transition edge sensors

过渡边缘传感器的微观物理

• DOI: 10.17863/cam.64460
• 发表时间: 2020
• 作者: Harwin R

Modelling proximity effects in transition edge sensors to investigate the influence of lateral metal structures

对过渡边缘传感器中的邻近效应进行建模以研究横向金属结构的影响

• DOI: 10.1088/1361-6668/aa73ae
• 发表时间: 2017
• 期刊: Superconductor Science and Technology
• 影响因子: 3.6
• 作者: Harwin R