Patent ID: 9711319
Date: 2017-07-18
CPC Classifications: H01J

Claim:
1. A system for generating a beam of fast ions, the system comprising; a sapphire substrate having a patterned surface, a pattern comprising nanoscale pattern features oriented substantially uniformly along a common axis; and a beam unit configured to receive a high power coherent electromagnetic radiation beam and to focus it onto the patterned surface of a target substrate to cause interaction between the coherent electromagnetic radiation beam and the substrate supporting creation of a flow of fast ions; and wherein an angle of polarization direction of the high power coherent electromagnetic radiation beam is controlled relative to the orientation direction of filaments of an oriented patterned target (OPT), such that by rotating polarization direction of the high power coherent electromagnetic radiation beam relative to direction of filaments of OPT orientation, energy of fast ions is decreased; and wherein the sapphire substrate is coupled to a cooling unit including a heat exchanger block coupled to a liquid nitrogen circulation system that pumps liquid nitrogen through the heat exchanger block to remove heat from the sapphire substrate.