Lichtenberg figure, also known as an electron tree, beam tree, or lightning tree. Lichtenberg figures are branching electric discharges appearing on the surface or interior of an insulating material. This figure was
Making Electron Trees (Lichtenberg Figures) with a Linear Accelerator - YouTube
Electron Tree - Etsy UK
Electron Trees for vm1757 | These were made in a radiation t… | Flickr
square perspex block | an electron tree in the making | mabel yee | Flickr
☢️ PHYSICS HOW electron trees are made using a linac⚡️🌳 #shorts - YouTube