- 00000018WIA30AF3870GYZ
- id_400267991.33
- Jul 26, 2022 11:21:53 PM
Technical specifications
This section provides technical system specifications.
- For details regarding spatial magnetic field compatibility, see Peak static spatial gradients on patient accessible areas table.
- Static magnetic field plots for siting (rule of thumb - assumes no ferromagnetic materials) may be found at:
http://www.gehealthcare.com/company/docs/siteplanning.html#mr
Magnet
| Component | Specification |
|---|---|
| Magnet Type | Super-Conducting |
| Static Field Strength | 1.5T |
| Bore Dimension |
163 cm x 70 cm x 70 cm |
| Cryogen Type | Liquid Helium |
| Boil Off Rate |
Zero under normal operating conditions |
Gradient
| Component | Specification |
|---|---|
| Gradient type | Non resonant, actively shielded, rapidly switching |
| Peak Amplitude | 36 mT/m (45 mT/m performance*) |
| Slew Rate | 150 T/m/s (200T/m/s performance*) |
| Rise time to Maximum Amplitude | 240 microseconds |
| *SIGNA™ Voyager’s UHE gradient technology delivers minimal TE and TR values that are equivalent and comparable with other gradient technologies running at 45 mT/m peak amplitude & 200 T/m/s peak slew-rate. | |
RF
| Component | Specification |
|---|---|
| Transmit RF | |
| Types of RF transmit coils | Body Coil, Head Coil, and Extremity Coils |
| Amplifier peak RMS power |
|
| Amplifier nominal center frequency | 63.86MHz |
| Maximum transmit bandwidth | +/- 0.650 MHz |
| Receive RF | |
| Minimum/Maximum reception frequency | 63.46MHz/64.26MHz |
| Nominal RF reception center frequency | 63.86MHz |
| Receive Bandwidth | +/- 250 kHz |
Patient comfort
| Component | Specification |
|---|---|
| Patient space size |
163 cm x 70 cm x 70 cm |
| Ventilation | In bore patient ventilation system |
| Communication | In bore 2 way intercom system |
| Lighting |
Variable intensity LED lighting |
Patient support
| Component | Specification |
|---|---|
| Height, cradle surface to floor | 52 cm. (20.5 inches) to 93 cm. (36.6 inches) continuous |
| Cradle Length up to coil ports | 243.6 cm (scannable range is 182 cm) |
| Positioning accuracy | +/- 0.5 mm (0.020 inches) |
| Maximum patient load when attached to scanner or when it is used as a transport | 250 kg. (551 lbs.) |