Patent Number: 
Section: claims

1. A device for magnetizing a laser plasma with a pulsed magnetic field, comprising:a vacuum chamber in which a target able to generate a laser plasma during an interaction of the target with a laser pulse is placed; anda winding that is powerable electrically in order to generate a pulsed magnetic field in the laser plasma,wherein the winding is placed in a re-entrant chamber containing a cooling fluid, andwherein the re-entrant chamber comprises an axial vacuum through-duct comprising two axial ends, the axial duct extending between its two axial ends in a propagation direction of the laser pulse, each of the axial ends being in communication with the vacuum chamber. 2. The device as claimed in claim 1, wherein the winding comprises at least one coil encircling the axial vacuum through-duct. 3. The device as claimed in claim 1, wherein the winding comprises two coils encircling the axial vacuum through-duct, said coils being separated by a central plate. 4. A device for magnetizing a laser plasma with a pulsed magnetic field, comprising:a vacuum chamber in which a target able to generate a laser plasma during an interaction of the target with a laser pulse is placed; anda winding that is powerable electrically in order to generate a pulsed magnetic field in the laser plasma,wherein the winding is placed in a re-entrant chamber containing a cooling fluid, andwherein the re-entrant chamber furthermore comprises at least one radial vacuum through-duct comprising two radial ends, each of the radial ends being in communication with the vacuum chamber. 5. The device as claimed in claim 4, wherein the winding comprises two coils encircling the axial vacuum through-duct, said coils being separated by a central plate, and wherein the radial vacuum through-duct is located in the central plate separating the two coils. 6. The device as claimed in claim 1, wherein the target is placed in the middle of the winding. 7. The device as claimed in claim 1, wherein the target is placed at one end of the winding. 8. The device as claimed in claim 1, wherein the cooling fluid is either a gas or a cryogenic fluid. 9. The device as claimed in claim 1, wherein the re-entrant chamber comprises a weakly conductive vacuum-resistant material. 10. The device as claimed in claim 9, wherein the re-entrant chamber comprises a stainless steel. 11. The device as claimed in claim 1, wherein the pulsed magnetic field is a magnetic field the strength of which is higher than a few tesla. 12. The device as claimed in claim 11, wherein the pulsed magnetic field is a magnetic field the strength of which is higher than ten tesla. 13. A device for magnetizing a laser plasma with a pulsed magnetic field, comprising:a vacuum chamber in which a target able to generate a laser plasma during an interaction of the target with a laser pulse is placed; anda winding that is powerable electrically in order to generate a pulsed magnetic field in the laser plasma,wherein the winding is placed in a re-entrant chamber containing a cooling fluid, andwherein the pulsed magnetic field is a magnetic field the strength of which is higher than forty tesla. 14. The device as claimed in claim 1, furthermore comprising a laser source for emitting a laser pulse able to interact with the target in order to generate the laser plasma, wherein the laser pulse possesses a power comprised between one gigawatt and one petawatt. 15. The device as claimed in claim 14, wherein the laser pulse possesses a power comprised between one terawatt and one hundred terawatts. 16. The device as claimed in claim 14, wherein the laser pulse possesses a duration comprised between ten femtoseconds and ten nanoseconds. 17. The device as claimed in claim 14, wherein the laser pulse possesses a duration comprised between ten femtoseconds and ten picoseconds. 18. The device as claimed in claim 15, wherein the laser pulse possesses a duration comprised between ten femtoseconds and ten nanoseconds. 19. The device as claimed in claim 15, wherein the laser pulse possesses a duration comprised between ten femtoseconds and ten picoseconds.