BNL线性同位素发生器（BLIP）辐照下材料性质的研究
Studies of material properties under irradiation at BNL Linear Isotope Producer (BLIP)
摘要：
在高功率加速器实验中，质子束辐照被认为是靶的材料的效果一直在使用布鲁克海文国家实验室（BNL）的200 MeV直线加速器进行研究。该研究包括范围介于低Z和高Z之间的各种材料和合金，其主要目的是（a）观察在维持高功率靶功能方面重要的物理机械性质的变化，（b）确定质子通量或注量的可能极限，在该极限以上某些材料会卡住以维持完整性，（c）研究材料工作温度在诱发或维持辐射损害逆转方面的作用，以及（d）利用反应堆和粒子加速器关联不同种类的辐射损伤效应，如高能质子和中子对材料的影响经验数据。这些目标正在与长基线中微子实验（LBNE）有关的最新材料辐照研究中具体解决。本文介绍了从过去的研究和正在进行的LBNE研究的初步观察中观察到的高功率目标和其他光束拦截元件（如准直器）对材料的辐照效应。
英文摘要：
Effects of proton beams irradiating materials considered for targets in high-power accelerator experiments have been under study using the Brookhaven National Laboratory's (BNL) 200 MeV Linac. The primary objectives of the study that includes a wide array of materials and alloys ranging between low and high-Z are to (a) observe changes in physio-mechanical properties which are important in maintaining high-power target functionality, (b) identify possible limits of proton flux or fluence above which certain material seize to maintain integrity, (c) study the role of material operating temperature in inducing or maintaining radiation damage reversal, and (d) correlate radiation damage effects of different species such as energetic protons and neutrons on materials by utilizing reactor and particle accelerator experience data. These objectives are specifically being addressed in the latest material irradiation study linked to the Long Baseline Neutrino Experiment (LBNE). Observations on irradiation effects on materials considered for high-power targets and other beam intercepting elements, such as collimators, from past studies and preliminary observations of the ongoing LBNE study are presented in this paper.
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