Laser-accelerated patricle beams for stress testing of materials (market study)

用于材料应力测试的激光加速粒子束（市场研究）

• 批准号: 523331-2018
• 负责人: Antici, Patrizio
• 金额: $ 0.88万
• 依托单位: Institut national de la recherche scientifique
• 依托单位国家: 加拿大
• 项目类别: Idea to Innovation
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=644019
• 关键词: Laser; accelerated; patricle; beams; stress

In the last decades, strong effort is put into the advanced manufacturing of materials for very specific applications. Part of these applications use materials exposed to harsh conditions such as when exposed to high-energy density fluence, e.g. in high-energy density/astrophysics, aero spatial applications (including aircraft industry), or energy production. Testing the stress of these materials before they go into production is of vital importance if one wants to ensure a safe operation of the system and prevent failures that can have devastating consequences. Currently, material stress tests simulated in laboratories are based on the irradiation of materials with high energetic (conventional) particle beams, which simulate the deposited energy and the displacements per atoms (dpa) of a testing material. A drawback of these methods is their long implementation time, associated with higher costs and long waiting times, and their limit in reproducing the real time scenario for some very specific applications. This proposal aims at performing a market study related to development and commercialization of a new Material Stress-testing technique based on laser-accelerated protons. Laser-based proton acceleration has the advantage of having a much shorter bunch length (typically it is ps at the source), a very high flux (typically 10e13 particles per bunch) and a large particle energy spectrum (ranging up to a few MeV). We have shown that these properties allow the laser-generated particles to induce a much higher stress into the materials since the short bunch duration does not allow the material for recovery. As such, using this novel source allows for different improvements such as being 1) much faster, since it can be performed with a few single sub-ps laser-shots; 2) more efficient, since it is able to reproduce a considerable typical operational time of the material in harsh environment (e.g. reactor) in a much shorter time; 3) more compact and more accessible; 4) more versatile, since it allows stress tests in various conditions, including those that are difficult or even impossible to reproduce by conventional methods. We strongly believe that a market study for this new technology is extremely timely and will contribute to foster innovation.**

在过去的几十年里，人们在针对特定应用的材料的先进制造方面投入了大量精力。这些应用的一部分使用暴露在恶劣条件下的材料，例如暴露在高能量密度注量下，例如高能量密度/天体物理学、航空空间应用（包括飞机工业）或能源生产。如果想要确保系统安全运行并防止可能造成灾难性后果的故障，在这些材料投入生产之前对其进行压力测试至关重要。目前，实验室模拟的材料应力测试基于用高能（传统）粒子束照射材料，模拟测试材料的沉积能量和每个原子的位移（dpa）。这些方法的缺点是实施时间长，成本较高，等待时间长，并且在为某些非常特定的应用再现实时场景方面受到限制。该提案旨在进行与基于激光加速质子的新材料应力测试技术的开发和商业化相关的市场研究。基于激光的质子加速具有更短的束长（通常在源处为 ps）、非常高的通量（通常每束 10e13 个粒子）和大粒子能谱（范围高达几 MeV）的优点。我们已经证明，这些特性允许激光产生的粒子对材料产生更高的应力，因为短束持续时间不允许材料恢复。因此，使用这种新颖的光源可以实现不同的改进，例如 1) 速度更快，因为它可以通过几个亚皮秒激光发射来执行； 2）更高效，因为它能够在更短的时间内重现恶劣环境（例如反应堆）中材料的相当大的典型操作时间； 3）更紧凑、更易访问； 4）更通用，因为它允许在各种条件下进行压力测试，包括那些通过传统方法难以甚至不可能重现的条件。我们坚信，针对这项新技术的市场研究非常及时，并将有助于促进创新。**