大型螺旋装置中红外成像视频测辐射热计的原位校准。

In situ calibration of an infrared imaging video bolometer in the Large Helical Device.

作者信息

Mukai K, Peterson B J, Pandya S N, Sano R

机构信息

National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan.

The Graduate University for Advance Studies, 322-6 Oroshi-cho, Toki 509-5292, Japan.

出版信息

Rev Sci Instrum. 2014 Nov;85(11):11E435. doi: 10.1063/1.4896959.

DOI:10.1063/1.4896959

PMID:25430342

Abstract

The InfraRed imaging Video Bolometer (IRVB) is a powerful diagnostic to measure multi-dimensional radiation profiles in plasma fusion devices. In the Large Helical Device (LHD), four IRVBs have been installed with different fields of view to reconstruct three-dimensional profiles using a tomography technique. For the application of the measurement to plasma experiments using deuterium gas in LHD in the near future, the long-term effect of the neutron irradiation on the heat characteristics of an IRVB foil should be taken into account by regular in situ calibration measurements. Therefore, in this study, an in situ calibration system was designed.

摘要

红外成像视频测辐射热计（IRVB）是一种用于测量等离子体聚变装置中多维辐射分布的强大诊断工具。在大型螺旋装置（LHD）中，已安装了四个具有不同视场的IRVB，以使用断层扫描技术重建三维分布。为了在不久的将来将该测量应用于LHD中使用氘气的等离子体实验，应通过定期的原位校准测量来考虑中子辐照对IRVB箔热特性的长期影响。因此，在本研究中，设计了一种原位校准系统。