Virtual Water™

Phantom Materials

Virtual Water™ makes routine checks of your linear accelerator easier.  Designed for photon and electron beam calibrations, it eliminates the inconvenience of transporting, setting up and filling water tanks.  Virtual Water™ is free of air and other imperfections and is not affected by humidity or temperature changes.  Skillfully molded and accurately machined in standard dimensions, Virtual Water™ can help you achieve calibrations within 0.5% of the true dose.

Virtual Water™ scatters and attenuates diagnostic and radiotherapy range X-rays the same way as water without the charge storage problems.  It can be used for both photon and electron beam calibrations, including relative ionization, depth dose measurements and absolute calibrations without the need for correction and scaling factors.  Ionization readings obtained in Virtual Water™ are practically the same as those in liquid water for the same depth and exposure duration.

Each batch of Virtual Water™ is tested at an independent calibration lab and verified to be within 0.5% of water at photon energies.  Although 30 x 30cm slabs are most widely used and therefore considered to be a standard size, Virtual Water™ is also available in various thicknesses in 20 x 20cm and 40 x 40cm sizes.

Virtual Water™ is a trademark of Med-Cal, Inc.

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