Radiant energy – With charged particle beam deflection or focussing – With target means
Reexamination Certificate
2005-12-20
2005-12-20
Wells, Nikita (Department: 2881)
Radiant energy
With charged particle beam deflection or focussing
With target means
C250S505100, C250S428000, C315S111210, C313S363100, C356S316000
Reexamination Certificate
active
06977383
ABSTRACT:
A method and apparatus for generating membrane targets for a laser induced plasma is disclosed herein. Membranes are advantageous targets for laser induced plasma because they are very thin and can be readily illuminated by high-power coherent light, such as a laser, and converted into plasma. Membranes are also advantageous because illumination of the membrane with coherent light produces less debris and splashing than illumination of a thicker, solid target. Spherical membranes possess additional advantages in that they can be readily illuminated from variety of directions and because they can be easily placed (i.e. blown) into a target region for illumination by coherent light. Membranes are also advantageous because they can be formed from a liquid or molten phase of the target material. According to another embodiment, membranes can be formed from a solution in which the target materials are solvated. Membranes can be formed an a variety of ways, such as by rotating a circular apparatus through a reservoir of liquid target material such that membranes form across apertures that are disposed in the circular apparatus. Spherical membranes can also be formed by applying a gas (i.e. blowing) against a membrane formed in an aperture of a circular apparatus.
REFERENCES:
patent: 2004/0171017 (2004-02-01), Firrao
International Search Report of PCT Application No. PCT/US03/41694 issued Nov. 16, 2004.
Morris James
Rieger Harry R.
Turcu I. C. Edmond
Baker & McKenzie LLP
JMAR Research, Inc.
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