加速器设备质量管理经验介绍

摘要

@@ The Elekta Precise medical Linac is a typical modern high energy accelerator which uses advanced digital technology and gets acknowledged around the world. It provides both X rays and electrons at various megavoltage energies including two photon energies (6 and 15 MV) and several electron energies (e.g. 6, 9, 12, 15, 18 and 22 MeV). The commonly used dose rate for X rays is 500 MU/min, while that for electors is 400 MU/min. The ac-celerator is equipped with 40 pairs of MLC for photon beam intensity modulation covering fields up to 40 × 40 cm2. The width of MLC at the isocenter is 10 mm. The maximum leakage is less than 0.3%.