Nuclear medicine is defined as the branch of medicine that uses radioactive isotopes, nuclear radiation, electromagnetic variations of the components of the atomic nucleus and related biophysical techniques for the prevention, diagnosis, therapy and medical research.
Clinical applications of radiopharmaceuticals cover virtually all medical specialties.
Nuclear medicine is closely related to several basic and applied sciences such as physics, chemistry, electronics, cybernetics and pharmacy, and other branches of medicine and physiology, pathophysiology, radiology and other diagnostic…
In nuclear medicine, a given radionuclide is administered to the patient, with the aim of investigating a specific physiological phenomenon by means of a special detector, usually a gamma camera, located outside the body. The injected radionuclide is selectively deposited in certain organs (thyroid, kidney, etc.). The size, shape and functioning of these organs can be seen from the gamma camera. Most of these procedures are diagnostic, although in some cases radionuclides are administered for therapeutic purposes.
The specialty of nuclear medicine that uses ionizing radiation for the treatment of malignant tumors is known as radiation therapy.
When radioactive unsealed sources speak of metabolic radiotherapy, which involves injecting or to ingest a relatively large dose of a radioactive substance in liquid form, so that it accumulates in the organ to be treated, which acts through used of radiation emitted on fabrics in contact therewith, producing the desired destruction of tumor cells effects.
This type of therapy is used to treat hyperthyroidism, thyroid cancer, bone metastases from…
The use of nuclear energy involves some controversy. The main disadvantages of nuclear energy are widely known, especially those related to environmental pollution problems in the event of nuclear incidents or accidents.
However, the advantages of nuclear energy are important enough to keep this technology active. The main use of this technology based on the manipulation of atoms is the generation of electrical energy, which is considered a form of non-renewable energy.
Despite this, there are other uses of nuclear energy in such important fields as medicine, pest control,…
Antoine-Henri Becquerel studied at the Polytechnic School. In 1875 he entered the department of bridges and roads, and became chief engineer in 1894. In 1892 he succeeded his father in the chair of the Museum of Natural History, and in 1895 he became professor of the Polytechnic School.
He continued his father's studies, and the discovery of X-rays by Röntgen (1896) made Antoine-Henri Becquerel think that this new radiation could be related to fluorescence and phosphorescence.
Henri Becquerel He also studied the polarization and absorption of light in crystals.
During the 70s and 80s Chile was in the process of modernizing the electric sector. During these years Chile liberalized its economy, privatized utility companies and opened the electricity sector to foreign investors.
During this time, however, Chile did not initiate any nuclear energy program unlike Argentina and Brazil. Chile did not seem willing to consider a nuclear energy option. Even in 2005, the future president Michelle Bachelet did not want to incorporate the development of nuclear energy as a valid option as part of her national energy policy.