Cobalt therapy
Cobalt Therapy[edit | edit source]
Cobalt therapy is a form of radiation therapy that utilizes gamma rays emitted by the radioisotope cobalt-60 for treating cancer. It emerged as a groundbreaking method in radiotherapy post-World War II, particularly in the 1950s.
History and Development[edit | edit source]
Cobalt therapy began in the 1950s, marking a significant advancement in radiotherapy. It was developed as a part of the efforts to find effective cancer treatments in the post-World War II period.
Mechanism of Action[edit | edit source]
Cobalt-60 machines produce a beam of gamma rays, which are directed into the patient's body. This radiation is effective in destroying tumor tissue while minimizing damage to surrounding healthy tissue.
Cobalt Units[edit | edit source]
Due to the high cost and need for specialist support, cobalt therapy machines were housed in specialized cobalt units. These units were designed to safely contain the radiation and facilitate treatment.
Advantages and Disadvantages[edit | edit source]
Cobalt therapy was preferred for its uniform radiation dose and deep tissue penetration. However, over time, issues like the decay of cobalt-60 and the need for secure storage due to its radioactive nature became apparent.
Replacement by Advanced Technologies[edit | edit source]
In recent years, cobalt therapy has been largely replaced by more advanced technologies, such as linear accelerators. These newer technologies offer improved precision, safety, and effectiveness.
Current Use[edit | edit source]
While largely replaced, cobalt therapy machines are still in use in some parts of the world, particularly where access to newer technologies is limited.
See Also[edit | edit source]
External Links[edit | edit source]
- American Cancer Society - Cobalt Therapy
- National Institute of Health - Research on Cobalt Therapy in Cancer Treatment
References[edit | edit source]
Cobalt therapy Resources | |
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