ABSTRACT Oxygen measurement and control system is critical for minimizing corrosion in nuclear systems. Oxygen measurement and control tools use lead-bismuth eutectic (LBE) and pure lead as a coolant or as a spallation target. Oxygen can be supplied by either gas phase (H2O or O2) or solid phase (PbO dissolution); thus, oxygen control includes both gas phase and solid phase methods. This article focuses on oxygen concentration measurement and control of lead-bismuth eutectic in a small, static experimental facility. This facility was developed for oxygen sensor calibration and gas/solid phase control systems test programs. The oxygen sensor with Nano Cu/Cu2O closely the Nernstian behavior down to 195°C; the oxygen sensor measurement accuracy satisfied the requirements of subsequent experiments. The gas phase control system (verified according to different type of mass transfer, such as air, H2O, gas injection, and coverage) and the solid phase control system were very successful in small experimental devices. Accurate oxygen concentration control was achieved with both the gas and solid phase control systems.

中文翻译：

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在小型静态实验设备中测量和控制铅铋共晶物的氧浓度

摘要 氧气测量和控制系统对于最大限度地减少核系统的腐蚀至关重要。氧气测量和控制工具使用铅铋共晶 (LBE) 和纯铅作为冷却剂或散裂目标。氧气可以通过气相（H2O 或 O2）或固相（PbO 溶解）提供；因此，氧气控制包括气相和固相方法。本文重点介绍小型静态实验设施中铅铋共晶物的氧浓度测量和控制。该设施是为氧传感器校准和气/固相控制系统测试程序而开发的。具有纳米 Cu/Cu2O 的氧传感器在低至 195°C 时与能斯脱行为密切相关；氧传感器测量精度满足后续实验要求。气相控制系统（根据不同类型的传质，如空气、H2O、气体注入和覆盖）和固相控制系统在小型实验装置中非常成功。使用气相和固相控制系统都实现了精确的氧气浓度控制。