11/6/2022 0 Comments Iridium 192![]() It was concluded that United States of America and France wires were found to be perfectly adequate for brachytherapy purposes and have therefore been sent to specialized hospitals and successfully applied to cancer patients. ![]() Wires from different origins were analyzed. Several experiments were carried out in order to define the activation parameters. It should not present a dispersion exceeding 5% on a wire measuring 50 cm in length, 0.5 mm or 0.3 mm in diameter. The linear activity goes from 1 mCi/cm to 4 mCi/cm and the basic characteristic, which is required, is the homogeneity of the activation along the wire. The technique consists in irradiating the wire in the reactor neutron flux in order to produce iridium- 192. These iridium wires have a nucleus made out of an iridium-platinum alloy 20-30/70-80 of 0,1 mm in diameter either coated by platinum or encased in a platinum tube. During this process, the ionizing radiation efficiently destroys the malignant cells. Some of the patients are treated with brachytherapy, a form of lesion treatment which is based on the insertion of sources into tumors, in this particular case, activated iridium wires. The incidence of cancer increases every year in Brazil and turns out to be one of the most important causes of mortality. Iridium- 192 sources production for brachytherapy use So that parameters III and IV are recommended to be applied to Ir- 192 HDR's source. Based on the result of leakage test using pressure -20 inch Hg and tensile test 2.5 bar showed the welding parameters III and IV did not have leakage and damaged. #IRIDIUM 192 FULL#Manufacturing of iridium sources for brachytherapy can be done by incorporating the iridium- 192 into stainless steel microcapsules then welding using laser welder which the quality of the welding of iridium source (Ir- 192) was determined by the welding parameters such as full power, energy frequency, average power and speed. One of cervical cancer treatment was fairly effective use brachytherapy treatment with radioisotope sources of iridium- 192. Number of cervical cancer patients in Indonesia is growing every year. International Nuclear Information System (INIS)Īnung Pujiyanto Moch Subechi Hotman Lubis Diandono KY Laser welding parameters for manufacturing iridium- 192 (Ir- 192) source ![]()
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