Instrument | EMU | HiFi | MuSR | ARGUS | CHRONUS |
Muon Beam | Surface positive muons (p=27±1MeV/c, E=3.2MeV). Polarisation > 99%. | Positive or negative decay muons, also positive surface muons. |
Range (1) | Mean range 100mg/cm2, spread 50mg/cm2 | Surface muons: Mean range 100mg/cm2, spread 50mg/cm2 |
Pulse structure | Single pulse (70ns FWHM), repetition rate 50Hz (with 1 of 5 repetitions missing) | Single or double pulse (70ns FWHM, separation 324ns), repetition rate 50Hz (with 1 of 5 repetitions missing) |
Frequency response | Up to 10MHz for relaxation/rotation limited by the pulse width. RF and laser experiments can allow up to 500MHz. |
Spot size (mm) (H,V) | 10-30, 10 | 10-30, 10 | 10-30, 10 | 10-50, 10-50 | 10-50, 10-50 |
Detectors | 32 | 64 | 64 | 192 | 606 |
Typical count rate (MEv/h) | 25 | 45 | 45 | 55 | TBA |
Background | Constant at <10-5 of peak muon rate. Background and muon count rates equal at ~25µs. | TBA | TBA |
Maximum magnetic fields: |
Zero field | <0.01G | <0.1G | <0.01G | TBA | TBA |
Longitudinal field | 4500G | 50000G | 2500G | 3950G | 3950G |
Transverse field | 100G | 150G | 600G | 200G | 600G |
Sample environment: |
Dilution fridge | Coming soon | 30mK-300K | 40mK-4K | Y | N |
He3 cryostat | 0.35-50K | N | 0.35-50K | 0.35-300K | N |
He4 cryostat | 1.5-300K | 1.5-400K | 1.5-300K | 1.5-300K | N |
Flow cryostat | 5-300K | 3-300K | 3-600K | 10-300K | N |
CCR | 12-600K | 10-600K | Returning soon | N | N |
Furnace | 300-1500K | 300-1500K | 300-1000K | Y | N |
Gas handling | Y | N | Y | N | N |
Liquid handling | Y | Coming soon | Y | N | N |
Radio frequency | Y | Coming soon | Y | Y | N |
Pressure | <50 bar | N | N | Y | N |
Laser stimulation | Coming soon | N | N | Y | N |
Notes:
(1) These values are before cryostat or cell windows. 100mg/cm2 corresponds to ~1mm in water and ~0.1mm in silver.