Abstract

We have experimentally and theoretically characterised silicon-glass Micro-Channel Plate (MCP) devices doped with cobalt atoms. Under anomalous scattering condition near the SiL-edges and CoK-edge we have proved the coherent excitation and the axial propagation of the induced fluorescence radiation inside micro-channels. Chemical modification of the MCP inner surface shows the efficient transmission of hard X-ray secondary radiation at the primary radiation energies of ~100 eV and ~8 keV. Experimental tests for these X-ray waveguides have been performed utilising both synchrotron radiation and conventional X-ray sources. X-ray pattern simulations point out that the propagating radiation has a waveguide modal character, which is described as axial channeling of the secondary fluorescence radiation.

中文翻译：

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MCP 微通道内的相干 X 射线荧光激发：轴向通道和波传播

摘要

我们已经通过实验和理论表征了掺杂钴原子的硅玻璃微通道板 (MCP) 器件。在 Si L -edges 和 Co K附近的异常散射条件下-edge 我们已经证明了微通道内诱导荧光辐射的相干激发和轴向传播。MCP 内表面的化学改性显示了硬 X 射线二次辐射在 ~100 eV 和 ~8 keV 的初级辐射能量下的有效传输。已经利用同步辐射和传统 X 射线源对这些 X 射线波导进行了实验测试。X 射线模式模拟指出，传播辐射具有波导模式特征，这被描述为二次荧光辐射的轴向通道。