In order to reduce the level of recorded background radiation in Thomson scattering (TS) experiments, we have designed and built a new setup for time and space resolved subnanosecond TS. Compared to our old setup, the new one is based on a faster camera, a laser with shorter pulse duration, and an optical delay line in the laser path. It has been characterized both by ray-trace simulations of the spectrograph and test experiments using Rayleigh and rotational Raman scattering on atmospheric pressure nitrogen gas. Although it was designed in the first place for experiments on a vacuum arc discharge in tin vapor for production of extreme ultraviolet light, our setup can also be applied to other plasmas that emit high levels of radiation or in which fast phenomena play a role.
Kieft, E. R., Groothuis, C. H. J. M., Mullen, van der, J. J. A. M., & Banine, V. Y. (2005). Subnanosecond Thomson scattering setup for space and time resolved measurements with reduced background signal. Review of Scientific Instruments, 76(9), 093503-1/6. https://doi.org/10.1063/1.2038667