ISMS and the World µSR Community

This wiki is presently maintained on a server at TRIUMF, but it is intended to serve anyone involved or interested in µSR worldwide. To reduce the chance of abuse or vandalism, we require registration in ISMS (the International Society for µSR Spectroscopy) for those who wish to contribute to this wiki (editing, adding or correcting information); anonymous visitors may read all they want but may not make changes. Membership in ISMS is free of charge and entails no responsibilities other than common sense and courtesy.

The following institutions offer muon beams suitable for µSR experiments:

TRIUMF

The Tri-University Meson Facility (so named for the original three founding Universities) in Vancouver, British Columbia, Canada, later operated as a national laboratory under the collective auspices of a growing number of Canadian Universities, with a budget from the National Research Council (NRC) of Canada. TRIUMF is still owned by a consortium of Canadian universities, but TRIUMF INC. is now a registered charity and a not-for-profit corporation incorporated under the laws of Canada. TRIUMF's facilities have always centred around a sector-focused, isochronous H^- accelerator (the world's biggest cyclotron) and (since the turn of the Millennium) a suite of radioactive beam accelerators at ISAC (Isotope Separator and ACcelerator) with several smaller cyclotrons providing isotopes for medical research. For the past decade these tools have been augmented by the construction and operation of ARIEL, a superconducting LINAC accelerating electrons to 30 MeV at high intensities to greatly increase production of rare isotopes at ISAC.

PSI

The Paul Scherrer Institut in Villigen, Switzerland, has the world's highest intensity CW muon beams. Like TRIUMF, it uses an isochronous cyclotron to achieve a continuous beam and so µSR experiments usually involve start-stop timing on individual muons, giving high time resolution but restricting rates to about 10⁵ muons/second. PSI also hosts a reactor, a spallation neutron source, a synchrotron light source and a free electron X-ray laser.

ISIS

The ISIS facility of the Rutherford Appleton Laboratory near Oxford, U.K., is primarily a spallation neutron source using the pulsed beam from a proton synchrotron, but it also boasted the world's highest intensity pulsed muon beams until J-PARC reached full intensity.

J-PARC

The Japan Proton Accelerator Research Complex in Tokai, Japan, begin producing muons in 2008. It may be expected to develop into a world-leading laboratory for what is now loosely termed "Medium Energy" Particle Physics, with facilities for nuclear physics, life sciences and, of course, µSR. The beam will be pulsed (similar to ISIS).

RAON

The Rare Isotope Accelerator Complex for ON-line Experiments will include a superconducting linear accelerator with a maximum beam power of 400 kW, a 200 MeV/u uranium beam and an H^- cyclotron of 70 kW. µSR experiments are among its many objectives.

EMuS at CSNS

There are plans to build muon beamlines at the China Spallation Neutron Source, but its time structure is not ideal for µSR.

Muon Dreams

From accelerator-driven thorium reactors to transmutation of radioactive waste to muon colliders, there are many applications of medium-energy beams that could provide or utilize low-energy muon beams that would be useful for µSR. Here is a place to add, store and update your crazy ideas!