The In-Vivo Dose Verification System is used in routine in-vivo dosimetry. Meditronix Corporation manufactures In-Vivo Dose Verification System. Meditronix Corporation offers various types of medical instruments. The In-Vivo Dose Verification System is used in one or multiple field measurements. The active region is of 0.2 X 0.2mm. In the system up to 20 dosimeters can be attached to a reader.