In addition to external beam therapy (3D, IMRT and VMAT), there are active SBRT programs at 5 centers, HDR programs at 5 centers, TBI programs at 2 centers, radiopharmaceuticals at 3 centers, a CyberKnife program at 1 location and a CAMPEP accredited physics residency program based at 1 location. 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.