Examination of JeltratePlus as a tissue equivalent bolus material

Abstract

A product available commercially for making dental impressions, JeltratePlus, was evaluated as a tissue equivalent bolus material. JeltratePlus was found to be tissue equivalent in 6 and 15 MV photon energy beams and 6, 12, and 20 MeV electron energy beams. As a first step, different preparations for making the bolus material were investigated and an optimal mixture was determined to be two parts JeltratePlus powder to three parts water by weight. A suitable method for storing the material was found to be in a water filled plastic container. Since the product is fairly inexpensive and is easily and quickly made and moulded into different shapes, it is an excellent bolus material to use when treating irregular patient contours. 2002 American College of Medical Physics.