Implementation of the Philips treatment planning system for use in radiation teletherapy

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Abstract
The Philips TPS is a dedicated computer system primarily for the calculation and display of radiotherapy dose distributions resulting from multiple field and rotational beam teletherapy techniques. Although a comprehensive range of planning facilities is offered by the system, including calculations in a number of parallel slices taken through the patient, the amount of basic data required to program the system is modest. The beam checks which were necessary to obtain the input data was described and then how well the computed radiation beams compare with independently measured isodose distributions was examined. Other features of the system were discussed and an assessment of its operational reliability was given.