DIII-D装置上的汤姆逊散射诊断升级

Thomson scattering diagnostic upgrade on DIII-D.

作者信息

Ponce-Marquez D M, Bray B D, Deterly T M, Liu C, Eldon D

机构信息

General Atomics, P.O. Box 85608, San Diego, California 092186-5608, USA.

出版信息

Rev Sci Instrum. 2010 Oct;81(10):10D525. doi: 10.1063/1.3495759.

DOI:10.1063/1.3495759

PMID:21033880

Abstract

The DIII-D Thomson scattering system has been upgraded. A new data acquisition hardware was installed, adding the capacity for additional spatial channels and longer acquisition times for temperature and density measurements. Detector modules were replaced with faster transimpedance circuitry, increasing the signal-to-noise ratio by a factor of 2. This allows for future expansion to the edge system. A second phase upgrade scheduled for 2010-2011 includes the installation of four 1 J/pulse Nd:YAG lasers at 50 Hz repetition rate. This paper presents the first completed phase of the upgrade and performance comparison between the original system and the upgraded system. The plan for the second phase is also presented.

摘要

DIII-D汤姆逊散射系统已升级。安装了新的数据采集硬件，增加了额外空间通道的容量以及用于温度和密度测量的更长采集时间。探测器模块被更快的跨阻电路所取代，使信噪比提高了2倍。这为未来向边缘系统扩展提供了可能。计划于2010 - 2011年进行的第二阶段升级包括安装四台重复频率为50Hz、能量为1J/脉冲的Nd:YAG激光器。本文介绍了升级的第一阶段完成情况以及原系统与升级后系统的性能比较。还介绍了第二阶段的计划。