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10 lip 2020 · This mini review offers a comprehensive illustration of promethium's history, synthesis techniques, properties, and its major applications in science, technology, and everyday life. Keywords: power sources, portable x-ray sources, lasers, healthcare, illumination, measurements. Graphical Abstract.
CLINICAL RESULTS. After official approval had been given by the federal agencies in February, 1973 for the handling of enclosed radio-active materials, Biotronik pacemakers containing promethium-147 as the nuclear fuel were implanted in 25 patients at our hospital in Bochum.
A benefit/risk analysis of the promethium-147-fueled pacemaker battery has been presented. Benefits are based principally on its expected lifetime of 7 to 9 years in a pacemaker. This fact reduces, for the patient, risks of the effects of battery depletion and risks...
Since its initial application by Elmquist and Senning in the year 1958, permanent electrical stimulation of the heart in bradyarrhythmias has become the most successful technical mode of therapy. Despite numerous improvements, both of a medical and a technical...
in half-life from <1 µs to 17.7(4) years (145Pm) (May and Thoennessen, 2012; McLennan, 2018). For a detailed description of promethium isotopes that have been discovered to date, see (May and Thoennessen, 2012). Fission products in nuclear fuel used to normally be the main source of 147Pm (Broderick et al., 2019). Until the 1970s, Oak
22 maj 2024 · However, the most important isotope for practical applications is promethium-147 (with a half-life of 2.6 years), which is used in radiotherapy and in miniature nuclear batteries that are...
29 kwi 2020 · Promethium, the last of the REE to be discovered, was identified in 1945. It has the longest half-life, 17.7 years, of all elements in the lanthanide series. While promethium is viewed as an ideal metal for portable X-ray devices, no successful application has been properly developed yet.
