University of Nevada

Other

Board of Regents of the Nevada System of Higher Education

Thomas E Cowan

Yasuhiko Sentoku

Jesse D Adams

Steven Malekos

Grant Korgan

Nathalie Le Galloudec

Nathalie Renard-Le Galloudec

Julien Fuchs

Markus Roth

Nathalie LeGalloudec

Jennifer Rassuchine

Patrick Audebert

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 &#x3bc;m. In particular examples, the distance is less than about 1 &#x3bc;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.

Targets and processes for fabricating same

In particular embodiments, the present disclosure provides systems and methods for imaging a subject using radiation emitted from a laser produced plasma generating by irradiating a target with a laser. In particular examples, the target includes at least one radiation enhancing component, such as a fluor, cap, or wire. In further examples, the target has a metal layer and an internal surface defining an internal apex, the internal apex of less than about 15 &#x3bc;m, such as less than about 1 &#x3bc;m. The targets may take a variety of shapes, including cones, pyramids, and hemispheres. Certain aspects of the present disclosure provide improved imaging of a subject, such as improved medical images of a radiation dose than typical conventional methods and systems.

Systems and methods for imaging using radiation from laser produced plasmas

Methods and apparatus for focusing proton and ion beams within the profile of the beam envelope of an ultra-low emittance, charge neutralized emission to create a pattern without focusing the entire beam envelope or rastering. In one implementation, a method for use with laser accelerated ion beams comprises the steps: irradiating a surface of a target with pulsed laser irradiation to produce an electron plasma emission on a non-irradiated surface of the target, the electron plasma emission producing an ion beam emission on the non-irradiated surface, the ion beam emission having a beam envelope; and focusing ions of the ion beam emission into a plurality of component beams within the beam envelope as a result of the shape of the non-irradiated surface of the target.

Method and apparatus for nanometer-scale focusing and patterning of ultra-low emittance, multi-MeV proton and ion beams from a laser ion diode

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Dresden, Germany

Thomas E Cowan