Time differential ALC _ experiments, simulations and benefits

13th International Conference on Muon Spin Rotation, Relaxation and Resonance

Lord, J.S.^1 ; Pratt, F.L.^1 ; Telling, M.T.F.^1

ISIS Muon Facility, STFC Rutherford Appleton Laboratory, Chilton

OX11 0QX, United Kingdom^1

关键词: Gyromagnetic ratio;    Hyperfine constants;    Level crossing;    Oscillation frequency;    Resonance line;    Resonant transfer;    Time spectrum;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/551/1/012058/pdf
DOI  :  10.1088/1742-6596/551/1/012058

来源: IOP

【 摘 要 】

Traditional muon avoided-level-crossing measurements use "integral counting" analysis, which results in a simple 1-D spectrum with resonance lines. At pulsed muon facilities, the time spectrum (TD-ALC) is available "for free" so it should be analysed to extract all relevant information. An ALC line corresponds to resonant transfer of polarisation back and forth between the muon and the other spins in a radical, and this oscillation is often at a convenient frequency of order 1 MHz. Following the oscillation frequency through just one Δm 0 line can give the hyperfine constants for both the muon and nucleus and the gyromagnetic ratio for that nucleus.