Cryogenic refrigerator with optical vector magnet
Features
Magnet model CFM-3D-30-VTI
» Cryocooler » Cryocooler from Sumitomo (twin 1W PT)
» Cooldown to operating temperature » System cooldown to operating temperature <48 hrs (design 36hr)
» Sample Space » Nominally Ø30 mm (29mm clear)
» Optical access » 4-way access in horizontal x-y plane» ±10 degree opening angle » z-cut Quartz as standard » Ø15mm VTI; Ø75mm RT
» Temperature range (static gas VTI) » ≤2 K to 325 K with 15m3/hr pump
» Temperature stability (after stabilisation) » 0.2% of set temperature (0.1% design)
» Maximum singleaxis field @≤4.2 K » 5 T (z) » 2 T (x) » 2 T (y) » 7 T (z) » 2 T (x) » 2 T (x) » 9 T (z) » 2 T(x) » 2 T (x)
» Maximum 3D (4p) dynamic vector @ ≤4.2 K » 1.5 T (1.8T design) ; ≤ 2hr for full rotation
» Central field homogeneity » X-axis: ≤0.5 % over 10 mm dsv (design <0.3%) » Y-axis: ≤0.5 % over 10 mm dsv (design <0.3%) » Z-axis: ≤0.6 % over 10 mm dsv (design <0.5%)
Key features » Energise single coil only (for field in X, Y or Z direction only) » Energise two coils simultaneously for 2-d path dependent experiments » Energise three coils simultaneously for 3-d path dependent experiments » Set vector field and vary both vector magnitude and/or vector direction » Set field in one coil (e.g. z-axis) and use other two coils (e.g. y & z axes)