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Practical method and device for enhancing pulse contrast ratio for lasers and electron accelerators

United States Patent

September 23, 2014
View the Complete Patent at the US Patent & Trademark Office
Thomas Jefferson National Accelerator Facility - Visit the Technology Review Committee Website
An apparatus and method for enhancing pulse contrast ratios for drive lasers and electron accelerators. The invention comprises a mechanical dual-shutter system wherein the shutters are placed sequentially in series in a laser beam path. Each shutter of the dual shutter system has an individually operated trigger for opening and closing the shutter. As the triggers are operated individually, the delay between opening and closing first shutter and opening and closing the second shutter is variable providing for variable differential time windows and enhancement of pulse contrast ratio.
Zhang; Shukui (Yorktown, VA), Wilson; Guy (Norfolk, VA)
Jefferson Science Associates, LLC (Newport News, VA)
13/ 385,728
March 5, 2012
The United States government may have certain rights to this invention under Management and Operating Contract No. DE-AC05-06OR23177 from the Department of Energy.