IP Library › Granted Patent US 7,348,569
Granted Patent B2
US 7,348,569 · App. 11/155,011 · Granted Mar 25, 2008

Acceleration of charged particles using spatially and temporally shaped electromagnetic radiation

Assignee: Massachusetts Institute of Technology
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Quick Facts
Patent No.
US 7,348,569
App. No.
11/155,011
Granted
Mar 25, 2008
Kind
B2
Abstract

A method and apparatus for accelerating charged particles are disclosed, wherein the method comprises using at least a transverse component of a temporally and spatially shaped electromagnetic field to accelerate one or more charged particles.

Claims (37)

1. A method comprising:

using a two-dimensional spatiotemporal pulse shaper to produce a spatially and temporally shaped electromagnetic field from an output of a laser system; and

accelerating a charged particle using at least a transverse electric field component of the spatially and temporally shaped electromagnetic field.

2. The method of claim 1 , wherein the transverse electric field component of the shaped electromagnetic field accelerates the charged particle for a period greater than an inverse of an electromagnetic frequency for the shaped electromagnetic field.

3. The method of claim 1 , wherein the pulse shaper comprises at least one dispersive element and a two-dimensional modulator.

4. The method of claim 1 , wherein the shaped electromagnetic field comprises a series of pulses that follow a trajectory of the accelerated charged particle.

5. The method of claim 1 , wherein the charged particle is an electron.

6. The method of claim 1 , wherein the accelerated charged particle is directed towards a target to produce a radionuclide.

7. The method of claim 5 , further comprising using the accelerated electron as a seed electron in a free electron laser.

8. The method of claim 5 , further comprising using the accelerated electron for electron microscopy.

9. The method of claim 5 , further comprising using the accelerated electron for electron lithography.

10. The method of claim 1 , further comprising inducing electromagnetic emission from the accelerated charged particle.

11. The method of claim 1 , wherein the charged particle is a proton.

12. The method of claim 5 , wherein the total energy of the accelerated electron is up to 200 MeV.

13. The method of claim 5 , wherein the total energy of the accelerated electron is up to 600 MeV.

14. The method of claim 5 , wherein the total energy of the accelerated electron is up to 1000 MeV.

15. The method of claim 6 , wherein the target comprises a substrate with at least one layer of a proton producing material.

16. The method of claim 1 , further comprising using the accelerated charged particle to induce at least one nuclear reaction in a target.

17. The method of claim 1 , further comprising using the accelerated charged particle to generate bremsstrahlung radiation in a target.

18. The method of claim 5 , further comprising using the accelerated electron for electron diffraction.

19. An apparatus comprising:

a source of charged particles; and

a source comprising a laser and a two-dimensional pulse shaper for providing a temporally and spatially shaped electromagnetic field configured to accelerate at least one of the charged particles using at least a transverse electric field component of the spatially and temporally shaped electromagnetic field.

20. The apparatus of claim 19 , wherein the transverse electric field component of the shaped electromagnetic field accelerates the charged particle for a period greater than an inverse of an electromagnetic frequency for the shaped electromagnetic field.

21. The apparatus of claim 19 , wherein the two-dimensional pulse shaper comprises at least one dispersive element and a two-dimensional modulator.

22. The apparatus of claim 19 , wherein the shaped electromagnetic field comprises a series of pulses that follow a trajectory of the accelerated charged particle.

23. The apparatus of claim 19 , further comprising a chamber comprising a target to which the accelerated charged particles are directed.

24. The apparatus of claim 23 , wherein the target produces radionuclides in response to the accelerated charged particles.

25. The apparatus of claim 23 , wherein the target undergoes a nuclear reaction in response to the accelerated charged particles.

26. The apparatus of claim 23 , wherein the target generates bremsstrahlung radiation in response to the accelerated charged particles.

27. An apparatus comprising:

a source of charged particles;

a means for accelerating at least one of the charged particles using at least a transverse electric field component of a spatially and temporally shaped electromagnetic field; and

a target for the accelerated charged particle,

wherein the means for accelerating at least one of the charged particles comprises a two-dimensional spatiotemporal pulse shaping means configured to produce the spatially and temporally shaped electromagnetic field from an output of a laser system.

28. The method of claim 1 , wherein the shaped electromagnetic field comprises a plurality of components that follow a trajectory of the accelerated charged particle.

29. The apparatus of claim 19 , wherein the shaped electromagnetic field comprises a plurality of components that follow a trajectory of the accelerated charged particle.

Assignments (3)
CONFIRMATORY LICENSE Recorded Dec 9, 2005
From: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 016877/0017 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 17, 2005
From: FEURER, THOMAS; TORCHINSKY, DARIUS H.; NELSON, KEITH A.
To: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Reel/Frame 016797/0167 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 7, 2005
From: FEUER, THOMAS; TORCHINSKY, DARIUS H.; NELSON, KEITH A.
To: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Reel/Frame 016859/0556 →
Continuity (2)
Provisional Application 6058119400 · Jun 18, 2004
Related Publication 20050279947A1 · Dec 22, 2005