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Von Halle, E.
Oak Ridge Gaseous Diffusion Plant, TN (USA). International Technology Programs1987
Oak Ridge Gaseous Diffusion Plant, TN (USA). International Technology Programs1987
AbstractAbstract
[en] The concept of the matched abundance ratio cascade and the system of equations for performing multicomponent productivity calculations upon them has proven extremely useful for analyzing the behavior of gaseous diffusion plants in which the stage separation factors are very nearly equal to unity. Recent interest in the gas centrifuge process, in which the separation factor of a single centrifuge can be relatively large, makes desirable the extension of the theory of the matched abundance ratio cascade to cascades composed of stages with large separation factors. Equations permit the calculation of the productivity for simple cascades composed of stages with large separation factors. The concentration gradient of each of the isotopic species present can be calculated and the cascade description can be determined. An illustrative example dealing with the separation of the isotopes of tungsten in a cascade composed of gas centrifuges is included
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Jun 1987; 35 p; Workshop on separation phenomena in liquids and gases; Darmstadt (Germany, F.R.); 20-23 Jul 1987; CONF-870782--1; Available from NTIS, PC A03/MF A01 as DE87011702
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Fritsch, A.; Ginepro, J.Q.; Heim, M.; Schuh, A.; Shore, A.; Thoennessen, M., E-mail: thoennessen@nscl.msu.edu
arXiv e-print [ PDF ]2010
arXiv e-print [ PDF ]2010
AbstractAbstract
[en] Thirty-five tungsten isotopes have been observed so far and the discovery of these isotopes is discussed here. For each isotope a brief summary of the first refereed publication, including the production and identification method, is presented.
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S0092-640X(09)00088-6; Available from http://dx.doi.org/10.1016/j.adt.2009.12.003; Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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Choriev, B.; Korjovov, M.; Yuldashev, M.
Abstracts of the third international conference on modern problems of nuclear physics1999
Abstracts of the third international conference on modern problems of nuclear physics1999
AbstractAbstract
No abstract available
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Source
Uzbekistan Academy of Sciences, Institute of Nuclear Physics, Tashkent (Uzbekistan); Bukhara State Univ., Bukhara (Uzbekistan); Samarkand State Univ., Samarkand (Uzbekistan); Tashkent State Univ., Tashkent (Uzbekistan); Tashkent State Univ., Inst. of Applied Physics, Tashkent (Uzbekistan); Uzbekistan Academy of Sciences, Scientific Association 'Physics-Sun', Tashkent (Uzbekistan); Bukhara Technological Inst., Bukhara (Uzbekistan); 358 p; Aug 1999; p. 107; 3. international conference ''Modern problems of nuclear physics''; Bukhara (Uzbekistan); 23-27 Aug 1999; 2 refs.
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Miscellaneous
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AbstractAbstract
No abstract available
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Progress Report
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Isotop. Radiat. Technol; v. 7 p. 378-380
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AbstractAbstract
[en] The 1 m radius, second order double focusing mass spectrometer at the University of Manitoba has been used to obtain atomic mass differences for eleven mass doublets. These data are combined with well known values for the atomic masses of 13C, 16O, 35Cl, and 37Cl to derive both atomic masses and mass differences for all of the naturally-occurring isotopes of W and Re. (author)
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28 refs.
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Journal Article
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Canadian Journal of Physics; v. 55(6); p. 506-511
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Orlov, A. A.; Ushakov, A. A.; Sovach, V. P.; Malyugin, R. V., E-mail: orlovaa@tpu.ru, E-mail: ushakovaa@sibmail.com, E-mail: vsovach@mail.ru2018
AbstractAbstract
[en] We have developed and program-realized a mathematical model of nonstationary separation processes proceeding in cascades of gas centrifuges for separation of multicomponent isotope mixtures. With the help of this model we have calculated the parameters of nonstationary separation processes proceeding in the cascades of gas centrifuges for tungsten isotope separation. It has been shown that the model adequately describes the nonstationary processes in the cascade and is suitable for calculating their parameters during separation of multicomponent isotope mixtures.
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Copyright (c) 2018 Springer Science+Business Media, LLC, part of Springer Nature; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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Journal of Engineering Physics and Thermophysics; ISSN 1062-0125;
; CODEN JEPTER; v. 91(3); p. 565-573

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Hurst, Aaron; Summers, Neil; Sleaford, Brad; Firestone, Richard B.; Belgya, T.; Revay, Z.S.
Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (United States). Funding organisation: Nuclear Science Division (United States)2010
Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (United States). Funding organisation: Nuclear Science Division (United States)2010
AbstractAbstract
[en] An evaluation of thermal neutron capture on the stable tungsten isotopes is presented, with preliminary results for the compound systems 183,184,185,187W. The evaluation procedure compares the γ-ray cross-section data collected at the Budapest reactor, with Monte Carlo simulations of γ-ray emission following the thermal neutron-capture process. The statistical-decay code DICEBOX was used for the Monte Carlo simulations. The evaluation yields new gamma rays in 185W and the confirmation of spins in 187W, raising the number of levels below which the level schemes are considered complete, thus increasing the number of levels that can be used in neutron data libraries.
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29 Apr 2010; 4 p; International Conference on Nuclear Data for Science and Technology 2010; Jeju Island (Korea, Republic of); 26-30 Apr 2010; AC02-05CH11231; Also available from OSTI as DE01000960; PURL: https://www.osti.gov/servlets/purl/1000960-MKgUex/
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AbstractAbstract
No abstract available
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Phys. Rev., C; v. 5(3); p. 1104-1113
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AbstractAbstract
No abstract available
Original Title
K voprosu o postroenii kaskadov dlya razdeleniya mnogokomponentnykh izotopnykh smesej
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Journal Article
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Progress Report
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At. Energ; v. 29(6); p. 425-429
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AbstractAbstract
No abstract available
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International conference on precision measurement and fundamental constants; Gaithersburg, Md; 3 Aug 1970
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Journal Article
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Nat. Bur. Stand. (U. S.), Spec. Publ; No. 343 p. 271-273
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