IP Library Granted Patent US 6,909,764
Granted Patent B2
US 6,909,764 · App. 10/035,819 · Granted Jun 21, 2005

Method and apparatus for high-energy generation and for inducing nuclear reactions

Assignee: The Regents of the University of Michigan
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Quick Facts
Patent No.
US 6,909,764
App. No.
10/035,819
Granted
Jun 21, 2005
Kind
B2
Abstract

A system is provided for generating high-energy particles and for inducing nuclear reactions. The system includes a laser and for emitting a laser beam, an irradiation target for receiving the laser beam and producing high-energy particles, and a secondary target for receiving the high-energy particles, thereby inducing a nuclear reaction. A method is also provided including producing a laser beam of high-intensity with an ultra-short pulse duration, irradiating the laser beam onto an irradiation target in order to ionize the irradiation target and produce a collimated beam of high-energy particles, and colliding the collimated beam of high-energy particles onto a secondary target containing a nuclei, thereby inducing a nuclear reaction on the secondary target.

Claims (47)

1. A method of generating a collimated beam of high-energy particles comprising:

producing a laser beam having an intensity greater than or equal to about 10 18 W/cm 2 and a pulse duration less than or equal to about 10 −9 seconds; and

irradiating an irradiation target capable of releasing high energy ions with said laser beam,

wherein said irradiation step produces a particle beam directed to within about 40 degrees of normal to said irradiation target.

2. A method of generating a collimated beam of high-energy particles comprising:

producing a laser beam having an intensity greater than or equal to about 10 18 W/cm 2 and a pulse duration less than or equal to about 10 −11 seconds; and

irradiating an irradiation target capable of releasing high energy ions with said laser beam.

3. A method of generating a collimated beam of high-energy particles comprising:

producing a laser beam having an intensity greater than or equal to about 10 18 W/cm 2 and a pulse duration less than or equal to about 10 −9 seconds; and

irradiating an irradiation target capable of releasing high energy ions with said laser beam,

wherein said laser beam has a repetition rate greater than or equal to about 10 −3 Hz.

4. A method of generating a collimated beam of high-energy particles comprising:

producing a laser beam having an intensity greater than or equal to about 10 18 W/cm 2 and a pulse duration less than or equal to about 10 −9 seconds; and

irradiating an irradiation target capable of releasing high energy ions with said laser beam,

wherein said irradiation target further comprises one of a solid, a liquid jet, and a droplet jet.

5. The method of claim 3 , wherein said irradiation step produces a particle beam with an energy level greater than or equal to about 100 keV.

6. A method of generating a collimated beam of high-energy particles comprising:

producing a laser beam having an intensity greater than or equal to about 10 18 W/cm 2 and a pulse duration less than or equal to about 10 −9 seconds;

irradiating an irradiation target capable of releasing high energy ions with said laser beam; and

inducing a nuclear reaction by colliding said particle beam into a secondary target containing a nuclei.

7. The method of claim 6 wherein said secondary target is merged with said irradiation target.

8. The method of claim 6 wherein said particle beam includes at least one of protons, deuterons, and tritons.

9. The method of claim 6 wherein said secondary target further comprises at least one of boron, carbon, nitrogen, oxygen, and neon.

10. The method of claim 6 wherein said particle beam further comprises protons and said secondary target further comprises at least one of boron-11, boron-10, nitrogen-14, oxygen-16, nitrogen-15, and oxygen-18.

11. The method of claim 6 wherein said particle beam further comprises deuterons and said secondary target further comprises at least one of boron-10, carbon-12, nitrogen-14, and neon-20.

12. The method of claim 6 wherein said laser beam includes a pulse interval shorter than a half-life of isotopes produced by said nuclear reaction.

13. The method of claim 6 wherein said particle beam includes excited atomic nuclei.

14. An apparatus for generating a collimated beam of high-energy particles comprising:

a laser adapted to generate a laser beam having an intensity greater than or equal to about 10 18 W/cm 2 and a pulse duration less than or equal to about 10 −9 seconds; and

an irradiation target capable of releasing high energy ions disposed in irradiation receiving relation to said laser beam,

wherein said irradiation target further comprises one of a solid, a liquid jet, and a droplet jet.

15. An apparatus for generating a collimated beam of high-energy particles comprising:

a laser adapted to generate a laser beam having an intensity greater than or equal to about 10 18 W/cm 2 and a pulse duration less than or equal to about 10 −9 seconds;

an irradiation target capable of releasing high energy ions disposed in irradiation receiving relation to said laser beam; and

a secondary target containing a nuclei disposed downstream of said irradiation target and receiving a particle beam from said irradiation target to induce reaction.

16. An apparatus for generating a collimated beam of high-energy particles comprising:

a laser adapted to generate a laser beam having an intensity greater than or equal to about 10 18 W/cm 2 and a pulse duration less than or equal to about 10 −9 seconds; and

an irradiation target capable of releasing high energy ions disposed in irradiation receiving relation to said laser beam,

wherein said secondary target is merged with said irradiation target.

17. An apparatus for generating a collimated beam of high-energy particles comprising:

a laser adapted to generate a laser beam having an intensity greater than or equal to about 10 18 W/cm 2 and a pulse duration less than or equal to about 10 −9 seconds; and

an irradiation target capable of releasing high energy ions disposed in irradiation receiving relation to said laser beam,

wherein said particle beam includes at least one of protons, deuterons, and tritons.

18. An apparatus for generating a collimated beam of high-energy particles comprising:

a laser adapted to generate a laser beam having an intensity greater than or equal to about 10 18 W/cm 2 and a pulse duration less than or equal to about 10 −9 seconds; and

an irradiation target capable of releasing high energy ions disposed in irradiation receiving relation to said laser beam,

wherein said secondary target further comprises at least one of boron, carbon, nitrogen, oxygen, and neon.

Assignments (2)
CONFIRMATORY LICENSE Recorded Jun 6, 2019
From: UNIVERSITY OF MICHIGAN
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 049395/0715 →
CONFIRMATORY LICENSE Recorded May 19, 2011
From: UNIVERSITY OF MICHIGAN
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 026307/0566 →
Continuity (2)
Provisional Application 6024702400 · Nov 8, 2000
Related Publication 20020172317A1 · Nov 21, 2002