this is a ccd image of the HeNe alignment laser. the hole in the multilayer mirror is the dark spot in centre. to the upper right is the saturated spot from the HeNe. the HeNe did not make it through both the round aperture in the sheet metal plate at the same time as the hole in the multilayer mirror. this was done in vacuum. today we will continue work in air, to turn the experiment the needed 2°.