We study an alternative method of generating gamma rays with orbital angular momentum (OAM). Accelerated partially-stripped ions are used as an energy up-converter. Irradiating an optical laser beam with OAM on ultrarelativistic ions, they are excited to a state of large angular momentum. Gamma rays with OAM are emitted in their deexcitation process. We examine the excitation cross-section and deexcitation rate.

中文翻译：

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产生具有轨道角动量的伽马射线的替代方法

我们研究了一种利用轨道角动量 (OAM) 生成伽马射线的替代方法。加速的部分剥离离子用作能量上转换器。用 OAM 对超相对论离子照射光学激光束，它们被激发到大角动量状态。具有 OAM 的伽马射线在其去激发过程中发射。我们检查激发截面和去激发率。