The µSR Acronym:

The acronym ``µSR'' dates from 1974 when it was invented by Toshi Yamazaki, Ken Nagamine, Ken Crowe and me to grace the cover of the first issue of the µSR Newsletter, in which the following definition and explanation were given:

• µSR stands for Muon Spin Relaxation, Rotation, Resonance, Research or what have you. The intention of the mnemonic acronym is to draw attention to the analogy with NMR and ESR, the range of whose applications is well known. Any study of the interactions of the muon spin by virtue of the asymmetric decay is considered µSR, but this definition is not intended to exclude any peripherally related phenomena, especially if relevant to the use of the muon's magnetic moment as a delicate probe of matter.