Design and Calibration of Thomson Scattering Diagnostic for TCSU

A single pulse ruby laser Thomson scattering system is being designed and installed to measure the electron temperature $T_{e}$ and density $n_{e}$ profiles in a Rotating Magnetic Field (RMF) driven FRC plasma. Based on measurements that show the total temperature is about 150 eV and the density is about 10$^{19}$ m$^{-3}$ in the Translation, Confinement and Sustainment Upgrade (TCSU) experiment, a $T_{e}$ of about 100 eV is expected. The system allows observation of 5 points on the bottom half section of the 40 cm radius TCSU device. Each spatial point is resolved with a GA polychromator attached to three PPPL pre-amplifier modules. A model to relate the fast and slow channel of the pre-amplifier followed by a spectral calibration of the polychromator characterizing the transmission of the bandpass interference filters is described. The overall system design will be discussed and initial results may be presented.