Quantum beats from nuclei excited by synchrotron pulses
Quantum beats from nuclei excited by synchrotron pulses
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同步加速器脉冲激发的原子核的量子拍
DOI：
10.1103/physrevb.18.165
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发表时间：
1978
影响因子：
3.7
通讯作者：
J. P. Hannon
中科院分区：
文献类型：
--
作者：
G. T. Trammell;J. P. Hannon
同步加速器脉冲将激发低位核能级，其随后的衰变将表现出频率等于核超精细分裂的节拍。以布拉格角入射到非常小的富集单晶上的高度准直脉冲将导致核共振谱宽中相当大一部分的入射辐射相干地散射成高度准直的光束，该光束将表现出与不同核发射的不同频率相对应的拍频，以及具有明显时间依赖性的衰变参数$\ensuremath{\Gamma}$。
Synchrotron pulses will excite low-lying nuclear levels whose subsequent decay will exhibit beats with frequencies equal to the nuclear hyperfine splittings. The highly collimated pulses incident on very small enriched single crystals at a Bragg angle will result in an appreciable fraction of the incident radiation in the spectral width of the nuclear resonance being coherently scattered into a highly collimated beam which will exhibit beats corresponding to the difference frequencies emitted by different nuclei, and a decay parameter $\ensuremath{\Gamma}$, with marked time dependence.