US 10,433,412 B2
Shock injector for low-laser energy electron injection in a laser plasma accelerator
Hann-Shin Mao, Richmond, CA (US); Wim Leemans, Kensington, CA (US); and Stepan Bulanov, Concord, CA (US)
Assigned to The Regents of the University of California, Oakland, CA (US)
Filed by The Regents of the University of California, Oakland, CA (US)
Filed on Feb. 12, 2018, as Appl. No. 15/894,422.
Application 15/894,422 is a continuation of application No. PCT/US2016/046746, filed on Aug. 12, 2016.
Claims priority of provisional application 62/207,193, filed on Aug. 19, 2015.
Claims priority of provisional application 62/333,433, filed on May 9, 2016.
Prior Publication US 2018/0168024 A1, Jun. 14, 2018
Int. Cl. H05H 1/54 (2006.01); H05H 15/00 (2006.01); A61N 5/10 (2006.01); G21K 5/02 (2006.01); H01S 3/00 (2006.01); H01S 3/11 (2006.01); H01S 3/16 (2006.01)
CPC H05H 1/54 (2013.01) [A61N 5/1001 (2013.01); A61N 5/1007 (2013.01); G21K 5/02 (2013.01); H05H 15/00 (2013.01); A61N 2005/1022 (2013.01); A61N 2005/1088 (2013.01); A61N 2005/1089 (2013.01); H01S 3/0057 (2013.01); H01S 3/11 (2013.01); H01S 3/1625 (2013.01)] 19 Claims
OG exemplary drawing
 
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.