ESSENTIAL DUTIES AND RESPONSIBILITIES: -Determines the need for, specifies, and accesses dosimetric and treatment planning equipment including, but not limited to, measurement instruments to calibrate all treatment equipment and monitoring devices, computerized treatment planning systems, computerized water phantom systems with appropriate ionization chambers and diodes, film densitometry systems, etc. -Maintains responsibility for the design and implementation of the aspects of the quality management program that involve the use of the external beam radiotherapy equipment as well as the review and approval of the procedures followed by the radiation therapy staff.