US Patent No. 10,433,412

SHOCK INJECTOR FOR LOW-LASER ENERGY ELECTRON INJECTION IN A LASER PLASMA ACCELERATOR


Patent No. 10,433,412
Issue Date October 01, 2019
Title Shock Injector For Low-laser Energy Electron Injection In A Laser Plasma Accelerator
Inventorship Hann-Shin Mao, Richmond, CA (US)
Wim Leemans, Kensington, CA (US)
Stepan Bulanov, Concord, CA (US)
Assignee The Regents of the University of California, Oakland, CA (US)

Claim of US Patent No. 10,433,412

1. A device comprising:a block of material, the block of material defining:
a gas inlet;
a chamber in fluid communication with the gas inlet;
a throat in fluid communication with the chamber, the throat being configured to generate a supersonic flow of a gas when the gas flows through the throat;
a channel in fluid communication with the throat; and
a gas outlet in fluid communication with the channel, the channel including a ramp that is positioned proximate the gas outlet, the ramp being inclined at an angle with respect to a direction of a flow of the gas proximate a surface of the channel prior to the ramp at the gas outlet;
the chamber, the throat, and the channel being defined by a first, a second, a third, and a fourth surface, the first surface and the second surface being substantially flat surfaces and being substantially parallel to one another, and a distance between a third surface and a fourth surface defining the channel increasing from a region of the channel proximate the throat to a region proximate the gas outlet.