3D diamond detector technology and radiation hardness studies

3D 金刚石探测器技术和辐射硬度研究

• 批准号: ST/M003965/1
• 负责人: Alexander Oh
• 金额: $ 32.88万
• 依托单位: University of Manchester
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FM003965%2F1
• 关键词: 3D; diamond; detector; technology; radiation

The requirements for particle detectors in current and future experiments and applications, from position sensitive detectors for high energy physics experiments to dosimetry for radiation therapy, become increasingly demanding. Diamond as a material is intrinsically radiation harder due to the higher atomic bonding strength compared to conventional Silicon. The project aims to develop a novel particle detector technology that is based on diamond as a detector material and in-bulk electrodes in the form of graphitic wires to reach ultra-high levels of radiation tolerance. The concept of in-bulk electrodes has been deployed previously in Silicon detectors and has proven to raise the radiation hardness by one order of magnitude. Since the increase in radiation hardness is due to the geometrical arrangement of electrodes and independent of the material, the same principle is applicable to diamond. This will consequently lead to a technology providing particle detectors with unprecedented radiation hardness, benefitting key projects in the STFC roadmap, namely in the areas of Particle Physics for experiments at the energy frontier, and for diagnostic devices in the area of radiation therapy for cancer treatment. The success of the project will be demonstrated by the proof that 3D diamond detectors can be made in a reliable process and that the radiation hardness meets the expectations.

在当前和未来的实验和应用中，对粒子探测器的要求越来越高，从用于高能物理实验的位置灵敏探测器到用于放射治疗的剂量学。作为一种材料，由于与传统硅相比，钻石的原子键合强度更高，因此本质上更难辐射。该项目旨在开发一种新的粒子探测器技术，该技术以金刚石为探测器材料，以石墨线形式的块状电极达到超高水平的辐射耐受性。体电极的概念以前已经被部署在硅探测器中，并被证明可以将辐射硬度提高一个数量级。由于辐射硬度的增加是由于电极的几何布置，而与材料无关，因此同样的原理也适用于钻石。因此，这将导致一种为粒子探测器提供前所未有的辐射硬度的技术，使STFC路线图中的关键项目受益，即用于能量前沿实验的粒子物理领域，以及用于癌症治疗的放射治疗领域的诊断设备。该项目的成功将通过证明3D钻石探测器可以在可靠的工艺中制造，以及辐射硬度达到预期来证明。

项目成果

Study of cubic and hexagonal cell geometries of a 3D diamond detector with a proton micro-beam

使用质子微束研究 3D 金刚石探测器的立方体和六角形单元几何形状

• DOI: 10.1016/j.diamond.2017.06.014
• 发表时间: 2017
• 期刊: Diamond and Related Materials
• 影响因子: 4.1
• 作者: Booth M

Recent results from polycrystalline CVD diamond detectors

多晶 CVD 金刚石探测器的最新结果

• 发表时间: 2019
• 期刊: Proceedings of the 2019 Meeting of the Division of Particles and Fields of the American Physical Society, DPF 2019
• 作者: Bäni L.

A study of the radiation tolerance of poly-crystalline and single-crystalline CVD diamond to 800 MeV and 24 GeV protons

• DOI: 10.1088/1361-6463/ab37c6
• 发表时间: 2019-11-13
• 期刊: JOURNAL OF PHYSICS D-APPLIED PHYSICS
• 影响因子: 3.4
• 作者: Bani, L.;Alexopoulos, A.;Zavrtanik, M.
• 通讯作者: Zavrtanik, M.

Barrier potential for laser written graphitic wires in diamond

• DOI: 10.1016/j.diamond.2020.108164
• 发表时间: 2021-01-16
• 期刊: DIAMOND AND RELATED MATERIALS
• 影响因子: 4.1
• 作者: Haughton, I.;Paz, I. Lopez;Allegre, O.
• 通讯作者: Allegre, O.

Latest results on the radiation tolerance of diamond detectors

钻石探测器辐射耐受性的最新结果

• 发表时间: 2019
• 期刊: Proceedings of Science
• 作者: Bäni L.