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Information × Registration Number 0220U104684, 0118U002255 , R & D reports Title "Investigation of double beta decay of 150Nd on excited states of 150Sm" popup.stage_title Head Tretyak Volodymyr I., Кандидат фізико-математичних наук Registration Date 24-12-2020 Organization Institute of Nuclear Research of the National Academy of Sciences of Ukraine popup.description2 The aims of the work were: (1) development of methods for chemical purification of neodymium oxide Nd2O3 powder and (2) preparation of Nd2O3 sample of high purity with mass of 2.5 kg for an experiment to search for double beta decay of 150Nd nucleus to the first 0+ excited level of 150Sm to confirm the existence of such process and more accurate measurement of its half-life. The research method consisted in checking the effectiveness of the developed method of chemical purification in the measurements of radioactive contamination of the obtained sample using ultra-low-gamma spectrometry with HPGe detector. Main results: 1. An effective method for chemical purification of neodymium oxide powder Nd2O3 has been developed. 2. A sample of Nd2O3 of high purity with mass of 2.5 kg was created. 3. Preliminary measurements were performed of the sample with HPGe detector with a volume of 518 cm3 in an underground laboratory (3600 m of water equivalent), which confirm its high radioactive purity and suitability for use in a long-term experiment to find a double beta decay of 150Nd to the first excited 0+ level 150Sm. Product Description popup.authors Boilko Roman S Danevich Fedir A Zueva Olena V Kasperovych Dmytro V Kobychev Vladyslav V Kobycheva Larysa M Kropyviansky Boris M Polischuk Oksana G Tymoshenko Andii I Shkurupii Oleg Yu popup.nrat_date 2020-12-24 Close