"The radiation beams come from there and target the right hand side of me, the right breast.
The forms of ionizing radiation relevant to the treatment of cancer are X-rays, gamma rays, and particulate radiation beams.
The machines are widely used today to aim highly precise radiation beams at tumors while minimizing exposure to healthy surrounding tissues.
The hospitals were all using I.M.R.T., which shapes and varies the intensity of radiation beams to more accurately attack the tumor, while sparing healthy tissue.
The hospital's medical physicist, who was apparently accustomed to calibrating larger radiation beams, did not realize that smaller beams needed to be handled differently, radiation experts say.
Radiation therapy is a local (targeted) treatment, and, hence, the side effects observed generally are limited to the tissues exposed directly to the radiation beams.
Anatomy differs, but in most women this prone position helps keep the radiation beams as far as possible from the heart and lungs.
These magnetic poles do not coincide with the rotational poles, and so the rotation of the pulsar swings the radiation beams around.
The Times found that on 133 occasions, devices used to shape or modulate radiation beams — contributing factors in the injuries to Mr. Jerome-Parks and Ms. Jn-Charles — were left out, wrongly positioned or otherwise misused.
The development of long-term side effects of radiation therapy depends on which tissues are exposed to radiation beams, the age of the patient, and the dose of radiation.
The devastating complications that resulted are rare today because of stricter indications for the use of radiation therapy, careful focusing of radiation beams, and effective shielding of adjacent normal tissues.
