论文标题
对J. Fernandez等人的评论，“使用中子共振光谱法进行时间和空间分辨的温度计的需求和灵敏度分析”，Rev. Sci。乐器。 90，094901（2019）
Comment on J. Fernandez et al, "Requirements and sensitivity analysis for temporally- and spatially-resolved thermometry using neutron resonance spectroscopy," Rev. Sci. Instrum. 90, 094901 (2019)
论文作者
论文摘要
Fernandez等人的文章认为，由于激光生产的中子脉冲中的进步，现在应该有可能通过使用单个亚匹克秒的激光脉冲在300J范围内使用单个亚比孔脉冲加速的中子来测量负载到升高压力的样品中的温度。我们指出，用于中子源和检测器的配置将需要一个非常大的样品，可能需要数十兆焦耳的激光能量才能驱动样品。因此，激光驱动的中子技术尚未足够成熟，无法考虑新设施，而兰斯（Lansce）的先前证明的实验仍然代表了唯一的可靠点设计。我们总结了一些可能将更明亮的中子源与动态负载耦合的可能策略。
The article by Fernandez et al argues that, because of advances made in laser-produced neutron pulses, it should now be possible to measure temperature in samples loaded to elevated pressures, by neutron resonance spectrometry with neutrons accelerated using a single sub-picosecond laser pulse in the 300J range. We point out that the configuration used for neutron source and detector would require an infeasibly large sample, potentially requiring tens of megajoules of laser energy to drive the sample. The laser-driven neutron technology is thus not yet mature enough to consider for new facilities, and the previously-demonstrated experiments at LANSCE still represent the only credible point design. We summarize some possible strategies for coupling brighter neutron sources with dynamic loads.
