KIPT 国家科学中心 "中子源 "亚临界核设施的物理启动

I. Karnaukhov, O. P. Bezditko, B. Borts, O. Bykhun, V. T. Bykov, P. I. Gladkikh, L. I. Glushchenko, O. M. Gordienko, V. G. Grevtsev, I. I. Karnaukhov, D. A. Krapiva, Ye.V. Lutsenko, V. Lyashchenko, Yu.A. Marchenko, A. Mytsykov, O. V. Nevara, V. Podorozhkin, O. V. Rezayev, V. M. Ridozub, V.Ye. Rudenko, V. S. Selivanov, D.V. Tarasov, A. V. Tertychny, V. Trotsenko, O.F. Vanzha, I.O. Vorobjov, I. Ushakov, Alex. Zelinsky, V. Androsov, M.P. Moiseenko, Yu.M. Telegin
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摘要

哈尔科夫物理技术研究所 "国家科学中心与阿贡国家实验室共同开发、设计和建造了 "基于电子直线加速器驱动的亚临界组件的中子源 "亚临界核设施。文章介绍了该设施实际启动期间取得的主要成果,其中包括分阶段将燃料组件装入堆芯,随后对其中子物理特性进行测量。总共有 37 个 WWR-M2 型燃料组件被装入设备堆芯。在每个装载步骤之后,使用乘法和面积比法测量了亚临界组件的有效中子倍增因子 keff 和反应性 ρ 值。此外,还测试了用于在线反应性监测的中子通量与电子电流比方法。研究是在加速器以 100 MeV 电子束能量、2.7 μs 电子脉冲持续时间、20 Hz 脉冲重复率和≤ 40 mA 束脉冲电流运行时进行的。对获得的结果进行了分析,以确保设施在下一阶段试运行时的核安全。
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Physical start-up of the Nuclear Subcritical Facility “Neutron Source” of NSC KIPT
National Science Center “Kharkov Institute of Physics and Technology” jointly with the Argonne National Laboratory developed, designed and constructed the Subcritical Nuclear Facility “Neutron source based on the subcritical assembly driven by electron linear accelerator”. The article presents the main results obtained during the physical start-up of the plant, the program of which involved the staged loading of fuel assemblies into the core with subsequent measurements of its neutron-physical characteristics. In total, 37 fuel assemblies of WWR-M2 type were loaded into the facility core. The values o f the effective neutron multiplication factor keff and reactivity ρ of the subcritical assembly were measured after each loading step using the multiplication and area ratio methods. In addition, the neutron flux to electron current ratio method was tested for on-line reactivity monitoring. The investigations were performed when the accelerator was operated with 100 MeV electron beam energy, 2.7 μs electron pulse duration, 20 Hz pulse repetition rate and ≤ 40 mA beam pulse current. The obtained results were analyzed in terms of ensuring the facility nuclear safety at the next stage of its commissioning which is the pilot operation.
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Асимптотична поведінка індексу складності зростаючих випадкових дерев Physical start-up of the Nuclear Subcritical Facility “Neutron Source” of NSC KIPT Електрофізичні властивості BaNd2–xSmxIn2O7 з шаруватою перовськітоподібною структурою Особливості фізичних процесів формування кремнієвих поверхнево-бар’єрних структур Чисельний розв’язок задачі про напружений стан нетонких неоднорідних циліндричних еліптичних оболонок на основі просторової моделі
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