MRI lab
In Berlin-Charlottenburg PTB's MRI group is running a 3-tesla whole-body MRI scanner. Technical developments and phantom measurements are either done autonomously or in cooperation with external partners from science or industry. Clinical studies or other investigations involving human volunteers are carried out together with medical research groups.
3-tesla MRI scanner
Siemens Verio whole-body scanner
| Manufacturer | Siemens |
| Installation | December 2009 |
| Static field | 2.89 T |
| Mass | 8.3 t |
| Dimensions | L × W × H = 163 cm × 230 cm × 222 cm |
| Free bore | 70 cm |
| He reservoir | 1500 L |
| ΔB0/B0 | ±1.4 ppm (ø 40 cm) |
| Drift | 0.1 ppm/h |
| Gradients | 45 mT/m |
| Slew rate | 200 T/m/s |
| 1H frequency | 123.2 MHz |
Transmit and receive system
Single-channel transmission (1H)
| Frequency | 123,2 MHz |
| RF amplifier | Astex RFPA |
| Peak power | 35 kW |
Single-channel transmission (X nuclei)
| Frequency range | 30−130 MHz |
| RF amplifier | Dressler LPPA 13080W |
| Peak power | 8 kW |
Transmit array (1H)
| Channel | 8 |
| Frequency | 123,2 MHz |
| RF amplifier | Analogic AN8135-S8 |
| Peak power | 8 kW per channel |
| Special features | each channel individually programmable in amplitude, frequency, and phase |
| 8-channel RF supervisor for patient safety | |
| Installation | February 2010 |
Receive system
| Channel | 32 |
| Frequency range | 500 Hz−1 MHz |
| Sampling rate | 10 MHz |
| Resolution | 32 Bit |
| Preamplifier | Noise factor > 0,5 dB |
| Bandwidth 665 kHz |
RF coils
| Description | Manufacturer | Type | Properties |
| Body coil | Siemens | Tx/Rx | 16-rung high-pass birdcage, circularly (head) or elliptically (body) polarized |
| 12-channel head coil | Siemens | Rx | |
| 32-channel head coil | Siemens | Rx | |
| 4-channel neck coil | Siemens | Rx | |
| 24-channel spine coil | Siemens | Rx | |
| 16-channel cardio coil | In Vivo | Rx | front part |
| 4-channel flex coil big | Siemens | Rx | |
| 4-channel flex coil small | Siemens | Rx | |
| 15-channel knee coil | QED | Tx/Rx | |
| Ring coil | Siemens | Rx | ø 11 cm |
| CP head coil | Rapid Biomedical | Tx/Rx | 16-rung birdcage |