نتایج جستجو برای: photofission

تعداد نتایج: 76  

2014
R. J. Commisso J. W. Schumer R. J. Allen D. D. Hinshelwood S. L. Jackson D. P. Murphy S. B. Swanekamp B. V. Weber J. C. Zier J. P. Apruzese G. Cooperstein D. Mosher P. F. Ottinger F. C. Young B. F. Phlips A. L. Hutcheson W. N. Johnson L. J. Mitchell R. S. Woolf A. W. Hunt Z. M. Larsen E. S. Cardenas

2015
Philip Goddard Paul Stevenson Arnau Rios

Studies of nuclear fission have been ongoing since the discovery of the process in 1938 by Hahn and Strassmann [1]. The actinide nuclide Pu has long been a case of interest, as spontaneous fission presents itself as a decay mechanism with significant probability, relative to other isotopes in the actinide region. This allows for quantitative comparisons between spontaneous and induced fission [...

Journal: :Annals of Nuclear Energy 2022

• The photon-induced multiple neutron generation reaction rate ratio (PMNRR) method was proposed to detect 237 Np. A combination of photon energies ranging over 12–15 MeV and 6–11 selected. feasibility the detections separated Np above a certain composition in UO 2 verified. PMNRR is robust energy distribution incident photons. This paper presents novel for detection its form advanced fuel by a...

Journal: : 2022

Relevance. The photofission of shielded nuclear materials is widely used to develop methods for non-destructive analysis their isotopic composition. To stimulate the reaction, bremsstrahlung beams obtained on electronic accelerators are used. Their parameters significantly depend design features and sample activation schemes. Purpose. Theoretical modelling an optimal scheme stimulating accelera...

Journal: :The journal of physical chemistry. A 2014
M D Brynteson C C Womack R S Booth S-H Lee J J Lin L J Butler

We investigate the photolytic production of two radical intermediates in the reaction of OH with propene, one from addition of the hydroxyl radical to the terminal carbon and the other from addition to the center carbon. In a collision-free environment, we photodissociate a mixture of 1-bromo-2-propanol and 2-bromo-1-propanol at 193 nm to produce these radical intermediates. The data show two p...

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