Radiology Key

Conclusion Linear accelerators have undoubtedly become the mainstay of radiotherapy delivery in the developed world with cobalt teletherapy machines providing simplicity and economic benefits in the less affluent parts of…

Commissioning new equipment Following the supply of a treatment machine, it is essential that the characteristics of the machine’s beams and the performance of the machine is established by measurement….

Chapter 4. Another significant aspect with regard to radiation protection is the room design described below. However, besides these aspects, there is a need for protection of the staff and…

Image guidance Megavoltage imaging to verify patient set-up and the location of critical tissue in relation to the radiation field has been carried out for many years with slow film….

Custom teletherapy machines Although the gantry mounted medical linear accelerator has found extensive use, there have been treatment techniques which have required the adaptation of the linear accelerator and also…

Megavoltage linear accelerator machines The workhorse of modern radiotherapy is the linear accelerator which owes its development to the pioneers who worked to produce higher energy beams than the kilovoltage…

General There is a variety of ionizing radiation beams used in radiotherapy. They range from low energy x-rays involving accelerating voltages as low as 10   kV to megavoltage x-ray beams with…

General Kilovoltage x-ray beam machines     Tube stand      High voltage circuits      Collimation      Beam energy      Control of output      Skin and eye shielding      Calibration of dose output  Megavoltage linear accelerator machines     General layout…

Chapter 4 where the reader will find in particular sections dealing with ARSAC for the administration of radioactive substances, the transport of substances, the statutory instruments governing the general use…