Phantoms are test objects that allow standardized, repeatable testing of imaging equipment.
Aqueous Phantoms
The following are compositions of water-based solutions found in standards and in the literature. Note that the corresponding physical properties (relaxation times, conductivity, permittivity) are functions of temperature and frequency (B0 field strength).
| Reference | Concentrations | ||
| NaCl | CuSO4·6H2O | NiCl2·6H2O | |
| AAPM REPORT NO. 34, TG6 (1992) | 0.0616 M = 3.6 g/L | 0.0078 M = 1.955 g/L | |
| ACR Small MRI Phantom Test Guidance | 0.077 M = 4.5 g/L | 0.01 M = 2.38 g/L | |
| ACR Large MRI Phantom Test Guidance (2018) | 0.075 M = 4.38 g/L | 0.01 M = 2.38 g/L | |
