Existing technology is the water phantom. But few radiation detectors (TLD, Films, Diodes and MOSFET) could not be directly used in water. We have designed inserts for photon and electron diode detectors in solid water slabs (water equivalent) phantom. The inserts were developed for photon and electron Diode. These inserts are not available commercially. Following invention is described in detail with the help of Fig1 showing the schematic design of square virtual water phantom Fig 2 showing one of the solid water slab cut into a groove for the insert of the detectors, Fig 3 showing inserts placed in the slab, Fig 4 showing inserts with detectors, Fig 5 shows the CT image of the phantom adaptors reconstructed in TPS (transverse, sagittal and coronal sections.
