The CIRS Electron Density Phantom can help improve the accuracy of your treatment planning. The phantom enables precise correlation of CT data in Hounsfield units to electron density and includes eight different tissue references. A syringe plug which can be filled with any fluid or solid material is included. An optional titanium reference is also available. The Model 062 can be configured to simulate head or abdomen set-ups. Tissue references can be positioned at 17 different locations within the scan field. Carry case and user guide are included.