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arXiv · 2605.07871

Coherent {\gamma}-ray Generation By Partially Stripped Ion Beams

Nicola Piovella·Gordon R. M Robb
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Abstract

We describe a scheme for generation of coherent $\gamma$-rays by backscattering intense visible laser light from a beam of partially stripped ions. The scheme is similar in principle to the proposed Gamma Factory at CERN, with the important difference that the scattering becomes coherent as a result of a collective instability which microbunches the ions. This instability is analogous to that which occurs in high-gain free electron lasers (FELs). The scheme potentially offers a route to a source of tuneable, coherent $\gamma$-rays, opening up a wide range of possible new applications and opportunities. We find that the parameter requirements for realization of coherent $\gamma$-ray generation regime are considerably more stringent than those proposed for the Gamma Factory, requiring significant increases in the pump laser intensity and possibly the ion beam current.

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Nicola Piovella, Gordon R. M Robb. 2026-05-08. Coherent {\gamma}-ray Generation By Partially Stripped Ion Beams. https://arxiv.org/abs/2605.07871

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