17–22 May 2026
C.I.D
Europe/Zurich timezone

FIRST EXPERIMENTAL DEMONSTRATION OF USING A CRAB-CROSSING COLLISION SCHEME FOR EFFICIENT LASER-TO-ION BEAM INTERACTION

WEV4302
20 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Invited poster MC4.T12: Hadron accelerators: Beam Injection/Extraction and Transport Poster session

Speaker

Alexander Aleksandrov (Oak Ridge National Laboratory)

Description

Lasers are used in many applications with H⁻ beams, including laser charge exchange, laser wire scanners, and laser temporal pulse patterning. In these applications, the H⁻ beams exhibit a wide range of bunch lengths that depend on the focusing of the RF cavities, the energy spread of the beam, and space charge forces. Achieving the required laser pulse length for complete overlap with the H⁻ beam can be challenging in scenarios where available laser power is constrained. A crab-crossing scheme was proposed to achieve efficient overlap of a short laser pulse with an arbitrarily long H⁻ beam pulse. This presentation reports the first experimental demonstration of this technique, which increases the efficiency of laser-to-ion beam interaction in a laser stripping experiment at SNS by 50%.

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Author

Alexander Aleksandrov (Oak Ridge National Laboratory)

Presentation materials

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