科学家利用成形激光脉冲,制造了更锐利、多色伽马射线束,使紧凑的金枪鱼来源能够用于医疗和工业用途。 Scientists created sharper, multicolor gamma-ray beams using shaped laser pulses, enabling compact, tunable sources for medical and industrial use.

来自Skoltech、MEPhI和Dukhov研究所的科学家开发了一种新方法,利用非线性Comparton散射法生产更锐利、多色伽马射线束。 Scientists from Skoltech, MEPhI, and the Dukhov Institute have developed a new method to produce sharper, multicolor gamma-ray beams using nonlinear Compton scattering. 通过将多个激光脉冲形成精确的时间模式,如平坦式或楼梯波形,它们最大限度地缩小了由波动式激光强度造成的光谱宽度。 By shaping multiple laser pulses into precise temporal patterns like flat-top or staircase waveforms, they minimized spectral broadening caused by fluctuating laser intensity. 这使电子能够在接近恒定的光压下发射伽马射线,产生狭窄的、高亮光谱线。 This allows electrons to emit gamma rays under near-constant light pressure, generating narrow, high-brightness spectral lines. 该技术使单一的相互作用能够同时产生多种不同的伽马射线能量,为医学成像、材料分析和同位素生产提供优势。 The technique enables a single interaction to produce multiple distinct gamma-ray energies simultaneously, offering advantages for medical imaging, material analysis, and isotope production. 与传统来源不同的是,这些激光光束是紧凑的、可条状的和光谱清洁的。 Unlike traditional sources, these laser-driven beams are compact, tunable, and spectrally clean. 这一方法支持数字设计测试,并可以加速开发俄罗斯计划中的英坦塞-康普顿辐射线等下一代设施。 The approach supports digital design testing and could accelerate development of next-generation facilities like Russia’s planned Intense Compton Radiation line. 研究结果发表在《身体评论A》中。 Findings were published in Physical Review A.