discuss the role of physics in the field of medicine and its applications with invention
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Answer:1) USING PARTICLE ACCELERATORS TO DEFEAT CANCER
In the last 50 years, medical physicists have spearheaded the development and application of particle accelerators for cancer treatment. Once confined only to physics laboratories, linear accelerators are sophisticated high energy machines that can now deliver beams of energetic electrons or X rays to malignant tumors -- at doses capable of killing cancerous cells and stopping the tumor's growth.
In recent years, an advanced treatment technique called intensity-modulated radiation therapy (IMRT) has enhanced the ability of radiation to control tumors. IMRT uses computer programs to precisely shape the treatment field and control the accelerator beam in order to deliver a maximal dose of radiation to a tumor while minimizing the doses to surrounding healthy tissues. IMRT is already in use for treating prostate cancer, cancers of the brain, head and neck and other malignant diseases, in children and in adults.
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