Radiation therapy test phantom 41023

general purpose

Small size water phantom with sliding caliper for absolute dosimetry with horizontal beam incidenceSuitable for calibration of ionization chambers in high-energy photon and electron beamsSuitable for monitor calibration in waterMakes it possible to irradiate up to three chambers simultaneouslyMakes it possible to vary the measuring depth continuouslyThe water phantom type 41023 is designed for calibration measurements in radiation therapy using a horizontal beam. Up to three ionization chambers (alternatively TL detectors and FeSO4 ampoules) can simultaneously be placed at different water depths with a distance of 50 mm from chamber axis to chamber axis by using waterproof acrylic adapters. The measuring depth can be adjusted continuously by means of a caliper on the phantom top. Appropriate adapters enable users to position thimble chambers precisely in depths from less than 15 mm up to 260 mm and plane parallel electron chambers as well as thermoluminescent detectors from 6 mm up to 260 mm. The external phantom dimensions are approximately 30 cm x 30 cm x 30 cm. The entrance window in one of the walls has the thickness of 3 mm and the size of 170 mm x 170 mm. The phantom has two handles for easy carrying, three adjustable supports for leveling, etched cross hairs for alignment and a collision protected drain tap for emptying without tilting or hanging the phantom's position.