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NSR database version of May 2, 2024.

Search: Author = N.Koyumdjieva

Found 7 matches.

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2012KO01      Prog.Nucl.Energy 54, 171 (2012)

N.Koyumdjieva, N.Janeva

New interpretation of the ²³²Th unresolved resonance self-shielding effect

NUCLEAR REACTIONS ²³²Th(n, X), (n, γ), E=4-100 keV; analyzed experimental data; calculated resonance self-shielding factors with resonance parameters from ENDF/B-VII.0, JENDL-3.3, JENDL-4.0, BROND-3 and JEFF-3.1 evaluated nuclear reaction libraries, total σ. Comparison with experimental data.

doi: 10.1016/j.pnucene.2011.06.006
Citations: PlumX Metrics

2011KO54      J.Korean Phys.Soc. 59, 1920s (2011)

N.Koyumdjieva, N.Janeva, A.A.Lukyanov

Influence of Resonance Effects in the Unresolved Resonance Region on ²³²Th Data Evaluation

COMPILATION ²³²Th(n, X), E≈4-140 keV; calculated, evaluated neutron strength functions, average σ, self-shielding factor, effective resonance integral. Compared with ENDF/B-VII.0, ENDF/B-VI.8, BROND3, JENDL-3.3, available data.

doi: 10.3938/jkps.59.1920
Citations: PlumX Metrics

2011SE12      J.Korean Phys.Soc. 59, 1737s (2011)

V.Semkova, N.Janeva, N.Koyumdjieva, R.J.Tornin, A.Moens, A.J.M.Plompen, K.Volev

Neutron-Induced Activation Cross Sections on Hafnium Isotopes from the Threshold to 20 MeV

NUCLEAR REACTIONS ^174,176Hf(n, 2n), ¹⁷⁷Hf(n, p)^177gLu, ¹⁷⁷Hf(n, 3n), ¹⁷⁸Hf(n, α), (n, x)^177gLu, ¹⁸⁰Hf(n, α), (n, p), ¹⁸⁰Hf(n, n')^180mHf, E=threshold-20 MeV; measured Eγ, Iγ; deduced activation σ. Compared with available data, JENDL-3.3, JEFF-3.1, ENDF?B-VII.0, TENDL-2009 (TALYS Evaluated Nuclear Data Library).

doi: 10.3938/jkps.59.1737
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23161.

2010KO14      J.Phys.(London) G37, 075101 (2010); Erratum J.Phys.(London) G37, 089701 (2010)

N.Koyumdjieva, N.Janeva, A.A.Lukyanov

Cross section structure of ²³²Th in the unresolved resonance region

NUCLEAR REACTIONS ²³²Th(n, X), (n, γ), E=4-140 keV; analyzed experimental neutron data; deduced average resonance parameters, resonance σ. R-matrix elements distribution and Wigner theory.

doi: 10.1088/0954-3899/37/7/075101
Citations: PlumX Metrics

2006BO04      Nucl.Sci.Eng. 152, 1 (2006)

A.Borella, K.Volev, A.Brusegan, P.Schillebeeckx, F.Corvi, N.Koyumdjieva, N.Janeva, A.A.Lukyanov

Determination of the ²³²Th(n, γ) Cross Section from 4 to 140 keV at GELINA

NUCLEAR REACTIONS ²³²Th(n, γ), E=4-140 keV; measured capture σ; deduced average resonance parameters. Comparison with previous results.

doi: 10.13182/NSE06-A2557
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22875.

2001KO05      Nucl.Sci.Eng. 137, 194 (2001)

N.Koyumdjieva, N.Janeva, K.Volev

Validation of the Characteristic Function Model for the Unresolved Resonance Region

NUCLEAR REACTIONS ⁵⁶Fe, ²³⁸U(n, X), E < 800 keV; analyzed σ; calculated self-shielding factors for unresolved resonance region.

doi: 10.13182/NSE01-A2185
Citations: PlumX Metrics

1995KO41      Z.Phys. A353, 31 (1995)

N.Koyumdjieva, A.A.Lukyanov, N.Janeva

Characteristic Functions in the Statistical R-Matrix Theory

doi: 10.1007/BF01297724
Citations: PlumX Metrics

Note: The following list of authors and aliases matches the search parameter N.Koyumdjieva: , N.T.KOYUMDJIEVA