2009年11月1日 · High-frequency pulsed EPR spectroscopy allows FID detection of EPR spectra owing to the short dead time that can be achieved. This FID detection is particularly attractive for EPR and ENDOR spectroscopy of paramagnetic species that exhibit inhomogeneously broadened EPR lines and short dephasing times.

Pulsed electron paramagnetic resonance (EPR) is an electron paramagnetic resonance technique that involves the alignment of the net magnetization vector of the electron spins in a constant magnetic field. This alignment is perturbed by applying a short oscillating field, usually a microwave pulse.

总结一下，打一个π/2的脉冲，然后观测磁矩信号在 y 轴方向上的衰减时常，这就是脉冲EPR里最简单的实验，自由感应衰减（Free Induction Decay， FID）。 原理重要，然而最最重要的是获得一张好看的谱。

— FID detection: Nutation can also be detected by moni-toring the amplitude of the FID that follows a high-turning-H †H0 /H1, [1] angle (HTA) pulse, as a function of pulse duration T. Fourier transformation of the FID yields the EPR spectrum with with the static Hamiltonian peak amplitudes oscillating with time T (13, 14, 16). In a

2024年11月1日 · FID detection of Rabi oscillations in fast-relaxing electron spins. The FID amplitude is detected as a function of pulse duration or microwave field amplitude. The FID-detected Rabi oscillations for rectangular and shaped pulses are analyzed. Our description is confirmed by EPR experiments using DPPH as a model sample.

2024年9月27日 · fid是脉冲顺磁共振中最简单的信号形式。 静磁场中的电子自旋体系受射频脉冲激发产生信号，并且因发生驰豫而使信号强度逐渐衰减至零，这种逐渐衰减的信号被称为自由感应衰减(FID)。

2012年9月19日 · Here we present results from a pulsed EPR spectrometer powered by a free-electron laser (FEL). The spectrometer operates at 8.5 T (240 GHz), and can be powered either by a 30-mW, 240-GHz...

FIDs are expected to be more broadly of interest in EPR because of the relatively short phase-memory times at physiological temperatures. There is an important primary benefit of the sweep approach in time-domain EPR spectroscopy: the required peak power is much lower and much less costly to generate.

电子气路调节 (epr) 可用于分流/不分流进样口和填充柱进样口以及 fid 检测器和 tcd 检测 器。epr 允许用户使用自己计算机上的 7820a 软件键盘，将压力、总 流量和吹扫流量任一参数（对于分流/ 不分流进样口）或仅流量一个

Semantic Scholar extracted view of "FID detection of EPR and ENDOR spectra at high microwave frequencies." by H. Blok et al.