The IMRT Head/Neck Phantom model T40015 is a 20 cm high cylinder with a diameter of 20 cm composed of 1 cm thick plates of water-equivalent RW3 material. Individually packed films can be placed between the plates. Five holes in the plates make it possible to mark a coordinate system on the films using a needle. Ion chamber data can be taken using a hole along the axis of the cylinder.

The LA 48 IMRT Head phantom model 40014 consists of an acrylic cylinder, 22 cm in height and 20 cm in diameter, which accomodates the LA 48 linear array. This combination makes it possible to measure the IMRT dose profile in the axis of the cylindrical phantom, which can be attached to the stereotactic system and to the treatment couch.