Analysis of Neutral Transport in the GAMMA10 Anchor-Cell Using H<img src="alpha.png"/>[roman]-Emission Detectors

Y. Higashizono et al.

doi:dx.doi.org/10.13182/FST05-A669

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Analysis of Neutral Transport in the GAMMA10 Anchor-Cell Using H[roman]-Emission Detectors

Y. Higashizono et al.

Fusion Science and Technology / Volume 47 / Number 1T / January 2005 / Pages 297-299

Technical Paper / Open Magnetic Systems for Plasma Confinement / dx.doi.org/10.13182/FST05-A669

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The neutral transport was studied in the anchor cell. The H line intensities were measured by using axially aligned H detectors. It was found that the intensity is considerably dependent on ECRH and GP#3,4. A 5ch H detector was newly installed in the outer-transition region of the anchor-cell. From the measurement of the spatial distributions, the vertical intensity profile is estimated to be about 2.5 cm on the half width half maximum, while the horizontal distribution shows roughly flat around Z=-670 cm. The above characteristics were discussed with aid of neutral transport simulation using DEGAS Monte-Carlo Code.