It decays by emitting beta (β) particles and gamma (γ) radiation. With this technique, hollow needles or hollow catheters are placed into the prostate gland, which are then filled with radioactive material (iridium-192 or cesium 137) for 5-15 minutes. 192 Ir is produced in the nuclear reactor in the reaction 191 Ir(n,γ) 192 Ir. About 96% of 192 Ir decays occur via emission of β and γ radiation, leading to 192 Pt.Some of the β particles are captured by other 192 Ir nuclei, which are then converted to 192 Os. Atomic Number of Iridium. Now, the longest lived copper isotope is Cu-67, which has a half life of about 61 hours. Sometimes elements are placed within a nuclear reactor, where the neutrons from the reaction react with the specimen to form desired products. These radioactive elements are produced in nuclear reactors and accelerators. Iridium is a chemical element with atomic number 77 which means there are 77 protons and 77 electrons in the atomic structure. Iridium is used in making crucibles and other equipment that is used at high temperatures. Iridium was used in making the international standard kilogram, which is an alloy of 90% platinum and 10% iridium. it can ionize atoms. So, if you made a Cu-67 +Ir alloy, it would be radioactive for a while. Atomic mass of Iridium is 192.217 u. Iridium 192. A high dose rate of this radioisotope can be used in brachytherapy to treat tumors by selectively delivering a cytotoxic dose of radiation to the tumor site. Brachytherapy allows the use of a higher than normal dose to be placed near the tumor while lowering the risk of damage to healthy tissue. Iridium is a metal used in the hardening of platinum alloys. Iridium Ir 192 is a radioactive isotope of iridium.Iridium-192 emits gamma rays and has a half-life of 74 days. Iridium-192. Iridium-192 does not typically occur naturally. 191 Ir composes 37.3% of natural iridium, 193 Ir making 62.7%. The chemical symbol for Iridium is Ir.. Atomic Mass of Iridium. Yes, depending on the isotopes of copper or iridium involved. Iridium-192 (symbol 192 Ir) is a radioactive isotope of iridium, with a half-life of 73.83 days. Instead, scientists must put iridium-191 in a nuclear reactor and bombard it with neutrons. There are different strategies used to form new elements. Iridium-192 is a radioactive isotope, meaning it's a version of iridium with a different number of neutrons than is contained in the dominant forms of the element. Energy emitted from a source is generally referred to as radiation. Iridium‑192 is one radioisotope used in brachytherapy, in which a radioactive source is placed inside a patient's body to treat cancer. The material can be enriched so as to reduce the contamination of radioactive 194 Ir from 193 Ir and increase 192 Ir production. Examples include heat or light from the sun, microwaves from an oven, X rays from an X-ray tube and gamma rays from radioactive elements. Ionizing radiation can remove electrons from the atoms, i.e. Iridium-192 is an example of a radioisotope prepared in this manner. It is also used to make heavy-duty electrical contacts.