本文对在医院放疗设备 ,特别是医用直线加速器和X刀的质量保证和质量控制中越来越广泛使用的三维水箱测量系统的构造及性能作了介绍和论述。 This article describes and discusses the construction and performance of three-dimensional water tank measurement systems that are increasingly used in hospital radiotherapy equipment, especially the quality assurance and quality control of medical linear accelerators and X-knives.