Description of the prototype diagnostic residual gas analyzer for ITER

T. R. Younkin; T. M. Biewer; C. C. Klepper; C. Marcus

doi:10.1063/1.4892157

Description of the prototype diagnostic residual gas analyzer for ITER

T. R. Younkin, T. M. Biewer, C. C. Klepper, C. Marcus

Diagnostics and Control

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

The diagnostic residual gas analyzer (DRGA) system to be used during ITER tokamak operation is being designed at Oak Ridge National Laboratory to measure fuel ratios (deuterium and tritium), fusion ash (helium), and impurities in the plasma. The eventual purpose of this instrument is for machine protection, basic control, and physics on ITER. Prototyping is ongoing to optimize the hardware setup and measurement capabilities. The DRGA prototype is comprised of a vacuum system and measurement technologies that will overlap to meet ITER measurement requirements. Three technologies included in this diagnostic are a quadrupole mass spectrometer, an ion trap mass spectrometer, and an optical penning gauge that are designed to document relative and absolute gas concentrations.

Original language	English
Article number	11E816
Journal	Review of Scientific Instruments
Volume	85
Issue number	11
DOIs	https://doi.org/10.1063/1.4892157
State	Published - Nov 2014

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Description of the prototype diagnostic residual gas analyzer for ITER

Abstract

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