Human Systems
Siemens Prisma 3.0 Tesla / Human Whole-body System
Magnet
Magnetic field strength | 2.893620 Tesla (123.256491 MHz for proton) |
Manufacturer | Siemens Medical Solutions, Inc. |
Magnet homogeneity at 40 cm DSV | – 0.25 ppm |
Imaging FoV | – 50x50x50 cm |
bore diameter | 60 cm |
Magnet length | 213 cm |
Distance to isocenter | 1200 mm |
Gradient coils
Manufacturer | Siemens Medical Solutions, Inc. |
GC Type | = AS82 |
GC FoVMax[mm] | = 500 |
GC AcousticResonanceFrequency[0][Hz] | = 590 |
GC AcousticResonanceBandwidth[0][Hz] | = 100 |
GC AcousticResonanceFrequency[1][Hz] | = 1140 |
GC AcousticResonanceBandwidth[1][Hz] | = 220 |
RF amplifiers
Broadband amplifier | |
Manufacturer | Siemens Medical Solutions, Inc. |
Model Type | DirectRF |
Max Peak Power | 50KWatts |
Frequency range | Multiple Nucleus Options: |
1H [MHz] | = 123.256491 |
3He [MHz] | =93.895425 |
7Li [MHz] | =47.901900 |
13C [MHz] | =30.994841 |
19F [MHz] | = 115.957156 |
23Na [MHz] | =32.603462 |
31P [MHz] | =49.894744 |
129Xe [MHz] | =34.097230 |
17O [MHz] | =16.708809 |
Peak power RFPA[0]/RFPA[1] 1H [W] | = 16200/24200, RFPA[2] x-nuclei [W] = 6800/5800 |
Gradient power amplifiers
High-Performance MR Gradient System XR 80/200 Manufacturer | Siemens Medical Solutions, Inc. |
GPA Type | = K2309_2250V_951A |
GPA GradMaxAmplAbsolute[mT/m] | = 80 |
GPA GradMaxAmplNominal[mT/m] | = 34 |
GPA GradMaxAmpl[mT/m] | = 37 / 24 / 22 / 22 |
GPA GradMinRiseTimeAbsolute[us/(mT/m)] | = 5 |
GPA GradMinRiseTime[us/(mT/m)] | = 5.3 / 5.55 / 10 / 20 |
GPA GradClipRiseTime[us/(mT/m)] | = 1 |
GPA GradMaxSlewRateAbsolute[mT/(m*ms)] | = 200 |
GPA GradMaxSlewRate[mT/(m*ms)] | = 188.679 / 180.18 / 100 / 50 |
GPA GradClipSlewRate[mT/(m*ms)] | = 1000 |
Voltage / current | 2250 V/900 A |
Shimming
Manufacturer | Siemens Medical Solutions, Inc. |
Standard active himming with 3 linear channels (1st order) | |
2nd-order shimming with 5 non-linear channels | |
Passive shimming | |
Dynamic Shim Controller | N/A |
Console - Platform / software
- Prisma A Windows 7/VE11C
- Prisma B Windows 7/VE11B
- Prisma C Windows 7/VE11E
Receiver Channels: 20/32/64 head/neck, 18 body, 32 spine, 4 flex, and other phased array for torso and limbs
Bruker 4.0T
W.M. Keck High Field Magnetic Resonance Laboratory
4.0 Tesla / 94 cm system
Magnet | |
Magnetic field strength | 4.0 Tesla (170.2 MHz for proton) |
Manufacturer | Magnex Scientific Ltd. |
Magnetic bore size | 940 mm |
Cryostat dimensions (HxWxL) | 2820/2430/2600 mm |
Distance to isocenter | 1300 mm |
Gradients | |
Manufacturer | Magnex Scientific Ltd. |
Outer / inner diameter | 930 / 670 mm |
Maximum gradient strength | 30 mT/m |
Gradient rise time | 900 us |
RF amplifiers | |
Broadband F1 amplifier | (identical F2 amplifier) |
Manufacturer | CPC |
Model number | 5TK4 |
Frequency range | 10-215 MHz |
Peak power | 4000 W |
Gradient amplifiers | |
Manufacturer | Copley Controls Corporation |
Voltage / current | 350 V/500 A |
Shim amplifiers | |
Manufacturer | Resonance Research Inc |
Voltage / current | 95 V/10 A |
Dynamic Shim Controller | Yale Built |
Console | |
Manufacturer | Bruker |
Platform / software | Avance / ParaVision 3.1.1 |
Receiver Channels | 4 |