RF resonance techniques for continuous muon beams |
| |
Authors: | S R Kreitzman |
| |
Institution: | (1) TRIUMF and Dept. of Physics, University of British Columbia, V6T 2A3 Vancouver, B.C., Canada |
| |
Abstract: | RF excitation was first used in μSR in 1958 1]. However, even with the advent of modern meson facilities the use of RF techniques
in μSR has not flourished, in part due to the muon's short lifetime, but mainly because unlike NMR RF fields are simply not
used to detect the muon's polarization. Nevertheless, a cursory survey of the relative power and sophistication of these two
related fields leaves little doubt that the pursuit of RF resonance within μSR will add significantly to its analytical capability.
At TRIUMF over the past few years we have worked toward developing RF capabilities suitable for use in a CW meson facility.
Several spectroscopic applications utilizing time integral techniques have been tested. These include detection of final states
in semiconductor and substituted radical systems, the very pretty two photon absorption (TPA) experiments, and the use of
low field swept frequency excitation to measure nuclear hyperfine parameters in Mu like system. Of course, the most celebrated
use of RF in magnetic resonance is its application to spin dynamics via various spin echo techniques. The adaptation of the
spin echo to μSR is discussed and examples of both transverse and longitudinal field echoes are presented. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|