Abstract

We discuss design and practical realization of novel gamma-ray Crystal-based Light Sources (CLS) that can be constructed through exposure of oriented crystals (linear, bent, periodically bent) to beams of ultrarelativistic charged particles. In an exemplary case study, we estimate brilliance of radiation emitted in a Crystalline Undulator (CU) LS by available positron beams. Intensity of CU radiation in the photon energy range 10⁰ − 10¹ MeV, which is inaccessible to conventional synchrotrons, undulators and XFELs, greatly exceeds that of laser-Compton scattering LSs and can be higher than predicted in the Gamma Factory proposal to CERN. Brilliance of CU-LSs can be boosted by up to 8 orders of magnitude through the process of superradiance by a pre-bunched beam. Construction of novel CLSs is a challenging task which constitutes a highly interdisciplinary field entangling a broad range of correlated activities. CLSs provide a low-cost alternative to conventional LSs and have enormous number of applications.

Graphical abstract

中文翻译：

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基于晶体的强伽马射线光源

摘要

我们讨论了新颖的基于伽马射线晶体的光源（CLS）的设计和实际实现，该光源可以通过将定向晶体（线性，弯曲，周期性弯曲）暴露于超相对论的带电粒子束来构造。在一个示例性案例研究中，我们通过可用的正电子束来估计在晶体波动器（CU）LS中发射的辐射的亮度。CU辐射在光子能量范围10 ⁰  − 10 ¹中的强度常规同步加速器，起伏器和XFEL无法获得的MeV大大超过了激光-康普顿散射LS的MeV，并且可能比CERN的Gamma Factory建议中所预测的要高。通过预束束的超辐射过程，可将CU-LS的亮度提高多达8个数量级。新型CLS的构建是一项具有挑战性的任务，它构成了一个高度跨学科的领域，涉及到广泛的相关活动。CLS提供了传统LS的低成本替代方案，并且具有大量的应用。

图形概要