Abstract
Muon level-crossing resonance (\ensuremath{\mu}LCR) spectroscopy is used to measure the variation of the emitted-positron asymmetry with respect to the longitudinal magnetic field, averaged over the muon lifetime. However, for pulsed and even chopped ${\mathrm{\ensuremath{\mu}}}^{+}$ beams, time information can be used (i) to produce a stronger resonance signal, and (ii) to avoid most of the sensitivity to drifts, as compared to the customary integral \ensuremath{\mu}LCR technique. This can be done without reverting to the low-data rates normally required for time-differential muon-spin resonance (\ensuremath{\mu}SR) spectroscopy at cw accelerators.
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