核聚变混合反应堆的亚临界监测

Q3 Energy

Problems of Atomic Science and Technology, Series Thermonuclear Fusion Pub Date : 2021-01-01 DOI:10.21517/0202-3822-2021-44-2-27-41

N. Burgio, E. Casaccia, M. Carta, V. Fabrizio, L. Falconi, A. Gandini, R. Gatto, V. Peluso, E. Santoro, M. Sciarretta, Enea Cr Bologna

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引用次数: 1

摘要

基于适用于亚临界系统的启发式广义微扰理论(HGPT)[1]，描述了在磁约束托卡马克型等离子体中产生“外部”中子源的混合聚变-裂变系统的亚临界水平在线运行监测程序。该程序[2]，通常被称为基于功率控制的亚临界监测(PCSM)，包括补偿核裂变区专门控制棒的缓慢和小的运动，以前使用标准程序校准，聚变中子源同样缓慢和小的变化。通过求解与归一化裂变功率相关的直接通量和重要性函数的多群输运方程对PCSM进行了验证[3]，并提出了一种基于等离子体压缩/膨胀修正聚变中子源强度的技术。等离子体和限制磁场的调整，需要实现PCSM，估计与0- d等离子体功率平衡的适当考虑。

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SUBCRITICALITY MONITORING IN FUSION-FISSION HYBRID REACTORS

Based on the heuristically generalized perturbation theory (HGPT) adapted to subcritical systems [1], a procedure for online operational monitoring of the subcriticality level of a hybrid fusion-fission system in which an “external” neutron source is generated in a magnetically confined tokamak-type plasma is described. This procedure [2], commonly referred to as power control-based subcriticality monitoring (PCSM), consists of compensating of slow and small movements of a specialized control rod in the nuclear fission zone, previously calibrated using a standard procedure, with equally slow and small alterations of the fusion neutron source. PCSM is verified by solving the multi-group transport equation for the direct flux, as well as for the importance function, associated with normalized fission power [3], and a technique is proposed for modifying the fusion neutron source strength based on plasma compression/expansion. Plasma and confining magnetic field adjustments, needed to implement the PCSM, are estimated with due account of the 0-D-plasma power balance.

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来源期刊

Problems of Atomic Science and Technology, Series Thermonuclear Fusion Energy-Nuclear Energy and Engineering

CiteScore

0.90

自引率

0.00%

发文量

期刊介绍： The journal is aimed at publication of papers and reviews which present the concepts of fusion reactors, the forecasts of fusion power engineering development, and results of theoretical and experimental studies of high-temperature plasma physics, analyse engineering and technological problems of the controlled thermonuclear fusion, discuss the designs of big fusion facilities, their economic, environmental and safety aspects. The main attention is paid to problems of the theory, design, modeling and experimental studies, related to construction of the fusion reactor ITER as well as to safety and long-term planning in the field of CTF.