Diagnostics Modules for Tokamak Disruption Experiments
Fusion Science and Technology / Volume 26 / Number 3P2 / November 1994 / Pages 618-622
Divertor Experiment and Technology / Proceedings of the Eleventh Topical Meeting on the Technology of Fusion Energy New Orleans, Louisiana June 19-23, 1994 / dx.doi.org/10.13182/FST94-A40225
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Diagnostic modules equipped with various sensors can provide useful information on key parameters for disruption events, e.g. energy deposition, vapor shielding effect, plasma pressure and force distribution. The modules are, basically, DIMES samples (Divertor Materials Evaluation System) equipped with sensors, coupled to digitizing unites and interfaced to a data acquisition system. The DIMES samples are part of the lower divertor diagnostics on the DIII-D tokamak. Three top-cap prototype diagnostics modules have been designed and fabricated. The initial testing and calibration have been performed using the SIRENS plasma gun at an energy deposition of 1 to 12 MJ/m2 over 0.1 to 1.0 ms, with a plasma pressure >100 MPa.
