Matouskova Jana, Schillinger Burkhard, Sklenka Lubomir
Department of Nuclear Reactors, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, V Holesovickach 2, 180 00 Prague, Czech Republic.
Heinz Maier-Leibnitz Zentrum (FRM II), Technische Universität München, 85748 Garching, Germany.
J Imaging. 2023 Jan 10;9(1):15. doi: 10.3390/jimaging9010015.
The paper describes the construction of the neutron imaging facility at the very low-power research reactor VR-1. The training reactor VR-1 is operated by the Czech Technical University in Prague, Czech Republic. It is mainly used for the education of students in the field of nuclear engineering as well as for the training of professionals. Neutron imaging is the new field of VR-1 reactor utilisation currently under development. Extremely low reactor power at the level of 100 W brought many challenges that were necessary to overcome to build and commission a sustainable neutron radiography facility. The paper describes the reactor's neutron flux verification and the basic concept and design of the neutron imaging instrumentation. The first experimental results were mainly dedicated to testing the detection system for different radial beam port configurations, different L/D ratios, and different exposure times. Preliminary results of neutron radiography and tomography measurements at VR-1 clearly showed the potential of using neutron imaging in low-power reactors such as the VR-1 reactor.
本文描述了在极低功率研究堆VR - 1上建造中子成像设施的情况。培训堆VR - 1由捷克共和国布拉格的捷克技术大学运营。它主要用于核工程领域学生的教育以及专业人员的培训。中子成像是VR - 1反应堆目前正在开发利用的新领域。100瓦水平的极低反应堆功率带来了许多挑战，要建造和调试一个可持续的中子射线照相设施就必须克服这些挑战。本文描述了反应堆中子通量验证以及中子成像仪器的基本概念和设计。首批实验结果主要致力于测试针对不同径向束流端口配置、不同长径比以及不同曝光时间的探测系统。VR - 1的中子射线照相和断层扫描测量的初步结果清楚地显示了在VR - 1反应堆等低功率反应堆中使用中子成像的潜力。
