A5017699503- Nuclear Physics and Applications
- Nuclear reactor physics and engineering
- Nuclear physics research studies
- Radiation Detection and Scintillator Technologies
- Nuclear Materials and Properties
- Atomic and Subatomic Physics Research
- Radiation Therapy and Dosimetry
- Graphite, nuclear technology, radiation studies
- Dark Matter and Cosmic Phenomena
- Congenital Anomalies and Fetal Surgery
International Atomic Energy Agency
2022
Institute for Physics and Power Engineering
2012-2022
The neutron beams generated at the electrostatic accelerators using nuclear reactions T(p,n)3He, D(d,n)3He, 7Li(p,n)7Be, T(d,n)4He, 7Li(d,n)8Be, 9Be(d,n)10B are widely used in physics and many practical applications. Among these least studied 7Li(d,n)8Be 9Be(d,n)10B. present work is devoted to measurement of spectrum from reaction 0∘ angle deuteron beam axis on accelerator Tandetron (JSC “SSC RF – IPPE”) activation method a stilbene crystal scintillation detector. first time ever was...
Analysis of existing database on the relative abundances delayed neutrons and half-lives their precursors measured for neutron induced fission heavy nuclei in energy range above 14 MeV shows that such data are not available many nuclides, which important nuclear fuel cycle. In present work first time dependence activity neutron-induced 237Np was obtained using T(d,n)4He.
In the present work new data on correlation and covariance matrices have been calculated for all recommended temporal parameters of delayed neutrons in 6- 8-group models. The method producing DN is described. table changes listed text. Some examples generated basis experimental decay curves (for IPPE data) restored using works another authors) are too.
The results of prevalence, structure and timerisk study in children birth with malformations inOmskin the period 1998—2008 are presented. Birth congenital abnormality weight average index accounted for (47.72 ± 0.66)%. Musculoskeletal cardiovascular prevailed total number structure. According to ICD-10 were united groups seasonal variation indices nave been determined them. Study indicated predominance conception cases high risk forming August, November December.
In the present work estimation of 8-group delayed neutron energy spectra emitted in fission 235U by thermal neutrons have been done. Aggregate that were measured with high resolution different time intervals after irradiation sample presented IAEA reference database for beta-delayed emission used process. Due to lack uncertainties this and necessity data process group at first these following components uncertainty considered: statistical; component due background; distinctive features...
In the present work digital data on decay curves of delayed neutron intensity, measured for fission 235U, 238U and 239Pu by thermal fast neutrons, is presented. The estimation time parameters neutrons in 6 8 groups representation have been made base individual experimental series using iterative least squares technique. It shown, that uncertainties group representation, obtained basis are comparable with 6-group representation. wide range after end irradiation - (0,1-700 s) significant...
Beta-delayed neutron emission is important for nuclear structure and astrophysics as well reactor applications. Significant advances in experimental techniques the past two decades have led to a wealth of new measurements that remain be incorporated databases. We report on coordinated effort compile evaluate all available beta-delayed data. The different measurement been assessed data compared with semi-microscopic microscopic-macroscopic models. microscopic database has tested against...