Grant W, Ames J, Almond P R
Med Phys. 1978 Sep-Oct;5(5):448-9. doi: 10.1118/1.594442.
The Therac 6 is new generation of low-energy linear accelerator. It incorporates a PDP-11/05 computer for beam control, treatment-factor input, and beam shutdown in the event of failure of the system. The performance of the unit has not been hindered by computer or software malfunction, and the computer has provided an excellent means for preventive maintenance and repair. Dosimetry parameters are similar to other 6 MV x-ray beams, and comparison to 60Co therapy beams shows that this unit may be more like 60Co units in penumbra and absence of off-axis peaking than other low-energy accelerators.
Therac 6是新一代低能量直线加速器。它配备了一台PDP - 11/05计算机，用于束流控制、治疗参数输入以及在系统出现故障时关闭束流。该设备的性能并未因计算机或软件故障而受到阻碍，并且计算机为预防性维护和维修提供了极佳的手段。剂量测定参数与其他6兆伏X射线束相似，与60钴治疗束的比较表明，与其他低能量加速器相比，该设备在半值层和无离轴剂量峰方面可能更类似于60钴设备。
