Integrated radiation monitoring and interlock system for the LHD deuterium experiments
Integrated radiation monitoring and interlock system for the LHD deuterium experiments
复制标题
LHD 氘实验的集成辐射监测和联锁系统
DOI：
10.1016/j.fusengdes.2018.02.067
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发表时间：
2018
影响因子：
1.7
通讯作者：
M. Osakabe
中科院分区：
文献类型：
--
作者：
H. Nakanishi;M. Yokota;M. Aoyagi;M. Ohsuna;T. Ito;S. Imazu;M. Nonomura;K. Ogawa;M. Isobe;N. Akata;Masahiro Tanaka;T. Saze;K. Nishimura;H. Hayashi;H. Miyake;H. Ogawa;H. Maeno;M. Emoto;Masanobu Yoshida;T. Kawamura;S. Sakakibara;S. Ishiguro;M. Osakabe
大型螺旋装置（LHD）于2017年3月成功启动了氘实验，预计将进一步提高等离子体性能，为螺旋反应堆的设计提供坚实的基础。为了安全和高效的氘实验，对设施进行了一些重大升级。在辐射安全方面，新安装了除氚系统、综合辐射监测系统和门禁系统。每个系统都有新的联锁信号，以防止任何不安全的等离子操作或工厂状况。作为综合辐射监测系统的一部分，已实施了主要的联锁扩展，该系统也与LHD中央操作和控制系统相互连接。辐射监测系统RMSAFE（适用于聚变实验的辐射监测系统）已经开始运行，用于监测LHD中的γ(X)射线。在氘实验中还应用了一些中子测量值。LHD数据采集系统LABCOM可以采集和处理每天24 h的连续数据流。由于γ(X)射线和中子测量需要更高的可用性，传感器、控制器、数据采集计算机、网络连接和可视化服务器被设计成可复制或多路复用，以实现冗余。LHD控制室的辐射监测显示器经过精心设计，具有出色的视觉识别能力，并使用户立即意识到有关剂量限制的几个警报。辐射安全网页亦已升级，以便随时实时显示γ(X)射线和中子的剂量率。
The Large Helical Device (LHD) successfully started the deuterium experiment in March 2017, in which further plasma performance improvement is envisaged to provide a firm basis for the helical reactor design. Some major upgrades of facilities have been made for safe and productive deuterium experiments. For radiation safety, the tritium removal system, the integrated radiation monitoring system, and the access control system have been newly installed. Each system has new interlock signals that will prevent any unsafe plasma operation or plant condition. Major interlock extensions have been implemented as a part of the integrated radiation monitoring system, which also has an inter-connection to the LHD central operation and control system. The radiation monitoring system RMSAFE (Radiation Monitoring System Applicable to Fusion Experiments) is already operating for monitoringγ(X)-rays in LHD. Some neutron measurements have been additionally applied for the deuterium experiments. The LHD data acquisition system LABCOM can acquire and process 24 h every day continuous data streams. Sinceγ(X)-ray and neutron measurements require higher availability, the sensors, controllers, data acquisition computers, network connections, and visualization servers have been designed to be duplicated or multiplexed for redundancy. The radiation monitoring displays in the LHD control room have been carefully designed to have excellent visual recognition, and to make users immediately aware of several alerts regarding the dose limits. The radiation safety web pages have been also upgraded to always show both dose rates ofγ(X)-rays and neutrons in real time.
LHD 中使用封闭式螺旋偏滤器进行边缘等离子体控制的初步实验
影响因子：
3.3
作者：
T. Morisaki;S. Masuzaki;M. Kobayashi
通讯作者：
M. Kobayashi