论文标题
HV2-Concept打破了RIXS仪器的光子计数极限
hv2-concept breaks the photon-count limit of RIXS instrumentation
论文作者
论文摘要
一旦逐步完善能量分辨率，常规RIX仪器达到了限制，而入射光子的带宽变得不足以提供可接受的光子计数率。我们表明，RIX SPYS与能量损失的函数基本上是它们在核心孔寿命内的入射能量中的整合。这一事实允许基于HV2概念的RIXS仪器在整个核心孔寿命窗口上利用事件同步辐射，而不会对能量减速分辨率进行任何妥协，从而破坏了光子计数限制。
Upon progressive refinement of energy resolution, the conventional RIXS instrumentation reaches the limit where the bandwidth of incident photons becomes insufficient to deliver an acceptable photon-count rate. We show that the RIXS spectra as a function of energy loss are essentially invariant to their integration over incident energies within the core-hole lifetime. This fact permits the RIXS instrumentation based on the hv2-concept to utilize incident synchrotron radiation over the whole core-hole lifetime window without any compromise on the energy-loss resolution, thereby breaking the photon-count limit.
