The PBXhyphen;M Thomson scattering system is reviewed after its first 9 months of operation. The system measuresTe(R) andne(R) at 55 radial points on the horizontal midplane with a spatial resolution of le;1.1 cm. The scattered light is collected by a Bouwers concentric mirror system and imaged onto 12hyphen;mhyphen;long fiber bundles. A composite entrance slit is used to optimize the system performance. The synchronization between the scattered light and detector gate is done via a laserhyphen;triggered spark gap. A penetration in the indentation coil allows the (ruby) laser beam to be dumped away from the plasma chamber. Other aspects of the system will be discussed.
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