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Information × Registration Number 0312U003126, 0106U011408 , R & D reports Title Investigation of peculiarities for heavy nucleus fission in a dependence from formation method of fissioning nucleus. popup.stage_title Виміри на У-240 методом гама-спектроскопії і попередній аналіз виходів продуктів поділу 238U альфа-частинками при трьох енергіях. Теоретичний аналіз літературних і отриманих нами експериментальних даних. Head Kibkalo Yuriy Vasilevich, Registration Date 14-02-2012 Organization Institute For Nuclear Research Of National Academy Of Sciences Of Ukraine popup.description2 Semiconductor gamma-spectroscopy method has been used for measuring the cumulative yields of the 28 fragments of 237Np photofission for 21 mass chains at 12.5 MeV bremsstrahlung maximum energy. Resulted mass distribution of heavy fragments shows the higher yields in the mass region 133 - 134, 138 - 140 and 145 - 146. The algorithm of calculations of the yield of prompt neutrons from fission fragments based on total yields experimental data obtained by radiochemical and gamma-spectrometry methods has been proposed. Effectivity of calculations was checked with compilations of 252Cf(s.f) experimental data. The phenomenological analysis of the neutron yields from the fission of 233U,235U,239Pu and 252Cf has been performed. The parameterization used allows the peculiarities of the 'sawtooth' curve of neutron multiplicity for light and heavy fragments to be described and predicted. The measurement of isomeric yields ratios of photofission fragments was done, created in (g,f)-reactions. Average angular momentums of heavy and light fission fragmentations of 232Th and 238U nuclei have been defined, which were irradiated of bremmsstrahlung photons with end-point energy near 8.5 MeV. Product Description popup.authors Желтонoжський Віктор Олександрович Куліч Надія Владиславівна Михайлов Леонід Вікторович Саврасов Андрій Миколайович Шитюк Віталій Анатолійович Ю.В. Кібкало popup.nrat_date 2020-04-02 Close