Radiation Damage Studies in Silicon

硅的辐射损伤研究

• 批准号: 2496726
• 金额: --
• 依托单位: Queen Mary University of London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2496726
• 关键词: Radiation; Damage; Studies; Silicon

The research intends to investigate the fundamental behaviour of radiation interaction with solid materials and identify where candidate materials can be optimised to improve detector efficiency and other key optimisation parameters using software, laboratory verification and statistical analysis. The aims are to: - Undertake a comprehensive literature review to identify the current advances and limitations of radiation detectors. This may incorporate conceptualising standard model limitations and identifying research advances to exploit the quantum nature of candidate materials to realise opportunities in quantum technology.- Undertake fundamental simulations using specialised modelling software to build predictive models used at CERN and other research establishments.- Validate key findings and compare with published data.- Identify where detector optimisation can be undertaken, supported by simulation results and laboratory findings. - Design build and new models and algorithms to validate experimental data and compare with published data with tried and tested methodologies.- Identify further areas of research and innovation in the radiation detection field- Build links with industry, academia, and radiation detection community Progress Report - August 2022. Results are presented on the most probable energy loss of high energy charged particles of a pion, proton, and positron at 2.0 GeV/c momentum traversing a 'thin Silicon' slab at 30, 50, 100, and 300 thicknesses. Such energy loss studies allow us to study the signals generated when particles interact with matter.The focus of these studies was to test and verify ionising particle-matter interactions and energy losses in thin silicon. This was done by comparing the theoretical work of Landau with the predictions of the FLUKA particle transport code. FLUKA is used extensively at CERN for particle interaction studies. Analysis of the results are presented in both graphical and tabular form and compared with published literature, with key findings highlighted at the end of each section.The FLUKA modelled results show good correlation with the Landau model paper and the most probable energy loss calculations, Landau approximation formula and the Gaussian smearing plots. The signal charge analysis using the FLUKA data also shows good agreement with detector hardware parameters from the ATLAS semi-conductor tracker.The expectation is that year 2 will focus on neutron interactions and building convertor layers for target material thicknesses. Recoil will be studied, and stronger theoretical understanding of charged particle modelling will be undertaken. Further competence may be extended into semi-conductor physics, quantum mechanical theory and organic materials.

该研究旨在研究辐射与固体材料相互作用的基本行为，并确定候选材料可以优化的地方，以提高探测器效率和其他关键优化参数，使用软件，实验室验证和统计分析。目的是：-进行全面的文献综述，以确定当前辐射探测器的进展和局限性。这可能包括概念化标准模型的局限性和确定研究进展，以利用候选材料的量子性质来实现量子技术的机会。-使用专门的建模软件进行基础模拟，建立欧洲核子研究中心和其他研究机构使用的预测模型。-验证关键发现并与已发布的数据进行比较。-根据模拟结果和实验室发现，确定可以进行探测器优化的地方。-设计建立和新的模型和算法，以验证实验数据，并与已发布的数据进行比较。-确定辐射探测领域的进一步研究和创新领域-与工业界、学术界和辐射探测界建立联系进展报告- 2022年8月给出了介子、质子和正电子的高能带电粒子在2.0 GeV/c动量下穿过30、50、100和300厚度的“薄硅”板的最可能能量损失的结果。这样的能量损失研究使我们能够研究粒子与物质相互作用时产生的信号。这些研究的重点是测试和验证电离粒子-物质相互作用和薄硅中的能量损失。这是通过比较朗道的理论工作和FLUKA粒子输运代码的预测来完成的。FLUKA在欧洲核子研究中心广泛用于粒子相互作用研究。对结果的分析以图表和表格形式呈现，并与已发表的文献进行比较，在每个部分的末尾突出显示了主要发现。FLUKA模拟结果与Landau模型论文、最可能能量损失计算、Landau近似公式和高斯涂抹图具有良好的相关性。利用FLUKA数据进行的信号电荷分析也与ATLAS半导体跟踪器的探测器硬件参数吻合良好。预计第二年将专注于中子相互作用和构建目标材料厚度的转换器层。将研究后坐力，并加强对带电粒子模型的理论理解。进一步的能力可以扩展到半导体物理，量子力学理论和有机材料。