First Divertor Thomson Scattering Measurements on Mast-U

Abstract

First data has been obtained from the MAST-U divertor Thomson scattering diagnostic [1] . Following a Raman scattering calibration in Nitrogen, the diagnostic operated during the first physics campaign. Measurements have been taken in detached and attached conditions and as the strike leg has moved through the field of view of the diagnostic. The system operated with a dedicated 30Hz laser whose timing was synchronised with 7 similar lasers installed in the core Thomson system.