PPPL-3525 is available in pdf or postscript formats.

Energetic Ion Loss Diagnostic for the Wendelstein 7-AS Stellarator

Authors: D. S. Darrow, A. Werner, and A. Weller

Date of PPPL Report: December 2000

Submitted to: Review of Scientific Instruments

A diagnostic to measure the loss of energetic ions from the Wendelstein 7-AS (W7-AS) stellarator has been built. It is capable of measuring losses of both neutral beam ions and energetic ions arising from ion cyclotron resonant heating. The probe can measure losses of both clockwise and counterclockwise-going energetic ions simultaneously, and accepts a wide range of pitch angles in both directions. Initial measurements by the diagnostic are reported.