Autor: Ünal, B. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Electrical Resistivity of Liquid Metals and Alloys
Autorzy:: Alkan, B.
Karabulut, R.
Ünal, B.
Powiązania:: https://bibliotekanauki.pl/articles/2035541.pdf
Data publikacji:: 2002-09
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 72.15.Cz
Opis:: New calculations of resistivities of liquid metals, Na, K, Rb, and alloys, Na-K, Na-Rb, K-Rb, were carried out by using a variant of the Kubo formula that explicitly contains the temperature T. The results come closer to the experiment than the previous ones that use the Ziman formula of resistivity.
Źródło:: Acta Physica Polonica A; 2002, 102, 3; 385-400
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Temperature Dependence of Ag Film Roughening during Deposition on Quasicrystal and Approximant Surfaces
Autorzy:: Ünal, B.
Evans, J.
Thiel, P.
Powiązania:: https://bibliotekanauki.pl/articles/1373681.pdf
Data publikacji:: 2014-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 68.55.-a
61.44.Br
68.37.Ef
81.15.Aa
Opis:: The temperature (T) dependence of roughening as assessed by scanning tunneling microscopy is compared for growth of Ag films on an 5-fold icosahedral Al-Pd-Mn quasicrystal surface and on an ξ'-approximant. Growth on the quasicrystal corresponds to a version of the Volmer-Weber growth, but modified by quantum size effects, and also by kinetic smoothening at low T and low coverages (θ). Growth on the approximant corresponds to a version of the Stranski-Krastanov growth modified by kinetic roughening at low T and low θ. For larger θ, i.e., for thicker films, distinct behavior is observed.
Źródło:: Acta Physica Polonica A; 2014, 126, 2; 608-612
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Calculation of Reaction Cross Sections for Producing Br-75 in the Energy Range of 5-40 MeV
Autorzy:: Salman, H.
Oruncak, B.
Ünal, R.
Powiązania:: https://bibliotekanauki.pl/articles/1401984.pdf
Data publikacji:: 2015-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 25.60.Dz
Opis:: The isotope of bromine, ⁷⁵Br ($T_{1/2}$ = 1.6 h), has a considerable interest in nuclear medicine. The radionuclide ⁷⁵Br is a positron emitter and is useful in positron emission tomography (PET) for fast metabolic processes. In this study the reaction cross sections were calculated for suggested various production mechanisms. The cross sections of charged particle-induced reactions, leading to ⁷⁵Br, were calculated for ⁷⁶Se(p,2n)⁷⁵Br, ⁷⁶Se(d,3n)⁷⁵Br, ⁷⁵As(³He,3n)⁷⁵Br and ⁷⁵As(⁴He,4n)⁷⁵Br using TALYS 1.6. The calculated results are compared with measurement data available in literature. The calculated results indicate that, ⁷⁶Se(p,2n)⁷⁵Br and ⁷⁶Se(d,3n)⁷⁵Br reaction channels have higher cross section values than that of ⁷⁵As(³He,3n)⁷⁵Br reaction channel. Moreover all these reaction channels are in the range of a medium-sized cyclotron.
Źródło:: Acta Physica Polonica A; 2015, 128, 2B; B-225-B-227
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Calculations of (γ,n) Reaction Cross Sections using Different Level Density Models for Some Lanthanide Nuclei
Autorzy:: Akçaalan, U.
Ünal, R.
Sarpün, İ.
Yalim, H.
Oruncak, B.
Powiązania:: https://bibliotekanauki.pl/articles/1401985.pdf
Data publikacji:: 2015-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 21.10.Ma
Opis:: The discrete level information deficiency requires usage of level density models in cross section calculations. The total reaction cross sections for gamma-induced reactions through the six level density models with a consistent parameterization of some lanthanides ($\text{}^{141}Pr,$ $\text{}^{142}Nd,$ $\text{}^{144}Sm,$ $\text{}^{153}Eu,$ $\text{}^{159}Tb,$ $\text{}^{160}Gd,$ $\text{}^{165}Ho,$ $\text{}^{175}Lu$) were calculated using TALYS 1.6 in the incident energy range from 5 to 30 MeV. All calculations from the present study were compared with each other and with data available in the literature.
Źródło:: Acta Physica Polonica A; 2015, 128, 2B; B-228-B-230
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 5.

Tytuł:: (n,2n) and (n,3n) Neutron Induced Reaction Cross Sections above 8 MeV
Autorzy:: Salman, H.
Ünal, R.
Oruncak, B.
Akçaalan, U.
Yalim, H.
Powiązania:: https://bibliotekanauki.pl/articles/1401991.pdf
Data publikacji:: 2015-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 24.10.-i
Opis:: Neutron induced reaction cross sections for (n,2n) and (n,3n) have been calculated in the energy range between 8 MeV and 26 MeV. Calculations were made for the target nuclei; $\text{}^{45}Sc,$ $\text{}^{59}Co,$ $\text{}^{89}Y,$ $\text{}^{93}Nb,$ $\text{}^{103}Rh,$ $\text{}^{169}Tm,$ $\text{}^{175}Lu,$ $\text{}^{181}Ta,$ $\text{}^{197}Au,$ $\text{}^{209}Bi$. Calculated results were compared with the available data in EXFOR. Model calculations of present data indicated clearly that some reported data from measurements failed to separate (n,2n) and (n,3n) contributions.
Źródło:: Acta Physica Polonica A; 2015, 128, 2B; B-231-B-235
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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