Just testing 3d noise textures in a volume mat on a beam particle in the new volume fog…
Pretty happy with the results 
And yah, it works volumetrically.
The sheets in the particle beam basically sample a 2d slice from a 3d noise texture, so as you move around the particle beam and the sheets rotate to be camera aligned, they redraw using an updated 2d slice from the 3d noise at their new angle.