Since the wavelength of the scattered photon depends on the energy of the scattering electron, Thomson scattering is good way to measure the energy of an electron. This is done by creating a photon of known wavelength and measuring the wavelength of the scattered photon. The Thomson Scattering configuration at MST uses a 1064 nm Nd:YAG Laser System, which produces the best time-resolution electron temperature readings in the world. We create our photons with high power lasers that we shine into a window on the top of the MST, and collect scattered photons with a large collection lens on the side of the MST.