Yazar "Akkus, B." seçeneğine göre listele

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    High-spin states in (191,193)Au and (192)Pt: Evidence for oblate deformation and triaxial shapes
    (AMER PHYSICAL SOC, 2007) Oktem, Y.; Balabanski, D. L.; Akkus, B.; Beausang, W.; Bostan, M.; Cakirli, R. B.; Goon, J. Tm.
    High-spin states of (191,193)Au and (192)Pt have been populated in the (186)W((11)B, xn) and (186)W((11)B, p4n) reactions, respectively, at a beam energy of 68 MeV and their gamma decay was studied using the YRAST Ball detector array at the Wright Nuclear Structure Laboratory at Yale University. The level scheme of (193)Au has been extended up to I(pi)=55/2(+). New transitions were observed also in (191)Au and (192)Pt. Particle-plus-Triaxial-Rotor (PTR) and Total Routhian Surface (TRS) calculations were performed to determine the equilibrium deformations of the Au isotopes. The predictions for oblate deformations in these nuclei are in agreement with the experimental data. Development of nonaxial shapes is discussed within the framework of the PTR model.
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    Study of fission fragments produced by N-14+U-235 reaction
    (SPRINGER, 2006) Yalcinkaya, M.; Ganioglu, E.; Erduran, M. N.; Akkus, B.; Bostan, M.; Guerdal, G.; Beetge, R.
    This work was performed to understand the structure of neutron-rich fission fragments around the 130 mass region. A thin U-235 target was bombarded by a N-14 beam with 10 MeV/A from the Separated Sector Cyclotron at the iThemba Laboratory for Accelerator Based Sciences, Cape Town, South Africa. The main goal was to detect and identify fission fragments and to obtain their mass distribution by using solar cell detectors in the AFRODITE (African Omnipurpose Detector for Innovative Techniques and Experiments) spectrometer. The X-rays emitted from fission fragments were detected by LEP (Low Energy Photon) detectors and gamma-rays emitted from excited states of the fission fragments were detected by CLOVER detectors in the spectrometer.