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Title: Targets and processes for fabricating same

Patent ·
OSTI ID:1253289

In particular embodiments, the present disclosure provides targets including a metal layer and defining a hollow inner surface. The hollow inner surface has an internal apex. The distance between at least two opposing points of the internal apex is less than about 15 .mu.m. In particular examples, the distance is less than about 1 .mu.m. Particular implementations of the targets are free standing. The targets have a number of disclosed shaped, including cones, pyramids, hemispheres, and capped structures. The present disclosure also provides arrays of such targets. Also provided are methods of forming targets, such as the disclosed targets, using lithographic techniques, such as photolithographic techniques. In particular examples, a target mold is formed from a silicon wafer and then one or more sides of the mold are coated with a target material, such as one or more metals.

Research Organization:
Board of Regents of the Nevada System of Higher Education, on behalf of the University of Nevada, Reno, NV (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC52-01NV14050
Assignee:
Board of Regents of the Nevada System of Higher Education, on behalf of the University of Nevada, Reno (Reno, NV)
Patent Number(s):
9,345,119
Application Number:
13/839,973
OSTI ID:
1253289
Resource Relation:
Patent File Date: 2013 Mar 15
Country of Publication:
United States
Language:
English

References (22)

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Microfabricated silicon solid immersion lens journal January 2001
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Focusing and spectral enhancement of a repetition-rated, laser-driven, divergent multi-MeV proton beam using permanent quadrupole magnets journal February 2009
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Magnetron sputtering target and cathode assembly patent April 1980
Process for manufacture of inertial confinement fusion targets and resulting product patent April 1982
Micro fabrication molding process patent May 1983
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X-ray generation apparatus patent March 1999
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Method of fabricating sub-micron hemispherical and hemicylidrical structures from non-spherically shaped templates patent November 2005
Large scale patterned growth of aligned one-dimensional nanostructures patent April 2008
Systems and methods for imaging using radiation from laser produced plasmas patent June 2009
Targets and processes for fabricating same patent July 2012
Micro-cone targets for producing high energy and low divergence particle beams patent September 2013
Targets and processes for fabricating same patent June 2014
Laser driven ion accelerator patent-application July 2002
Targets and Processes for Fabricating Same patent-application February 2010
Targets and Processes for Fabricating Same patent-application November 2012
Targets and Processes for Fabricating Same patent-application January 2014