Determination of neutron absorption rates of 5% colemanite, ulexite, B2O3 doped HDPE materials

Muçogllava, Brunilda
Demirköz, Melahat Bilge


Determination of Internal Stress of Ni Electroplated Samples in Sulphamate Solutions
Aykac, B.; Erdogan, M.; Karakaya, İshak (2017-06-01)
Internal stress is a common problem affecting the functionality of the electroplated materials. The parameters of electrodeposition and additive materials that are soluble in the bath change the characteristics of the plating and affect the internal stress of the coatings. The influence of the electrodeposition parameters on the internal stress of Ni deposits from the nickel sulphamate baths were studied by the help of fractional factorial design. The parameters included temperature, pH, current density and...
Determination of deep trapping center parameters in as-grown Tl2Ga2S3Se layered crystals
YILDIRIM, TACETTİN; Hasanlı, Nızamı (Elsevier BV, 2009-09-01)
Thermally stimulated current measurements were carried out on as-grown Tl2Ga2S3Se layered single crystals. The investigations were performed in temperatures ranging from 10 to 320 K with heating rates of 0.6-1.2 K s(-1). The analysis of the data revealed the hole trap level located at 498 meV. The activation energies of the traps have been determined using various methods of analysis, and they agree with each other. The calculation for these traps yielded 2.1 x 10(-18) cm(2) for capture cross-section and 2....
Determination of ion dose and profiles in Ge-74 and Sn-120 implanted silicon layers by PIXE, NAA, RBS and SIMS
Belin, B; Bode, P; Turan, Raşit; Van Meerten, TG (2004-01-01)
Implanted Ge-74 and Sn-121 concentrations in silicon (Si) layers were investigated by particle induced X-ray emission (PIXE), instrumental neutron activation analysis (INAA), Rutherford backscattering spectrometry (RBS) and secondary ion mass spectrometry (SIMS). Slight differences were observed in the results obtained. It was shown that PIXE and INAA are as powerful as the traditional RBS and SIMS spectroscopy for the investigation of thin layered Si.
Determination of fracture and fatigue behaviours of 4340 steel
Şen, Gökçe; Gürbüz, Rıza; Ögel, Bilgehan; Department of Metallurgical and Materials Engineering (2015)
In this study both the characteristic and mechanical properties of received modified AISI 4340 steel -generally used in aeronautical and defense applications- has been examined. Mode I Fracture toughness (KIC) tests have been conducted with two different directional specimens of RL and LR. Fatigue crack growth behaviors of directional specimens are compared and discussed at three different positive stress ratios (R) which are 0.1, 0.3 and 0.5 under constant amplitude loading. Walker equation is used to perf...
Determination of trapping parameters of thermoluminescent glow peaks of semiconducting Tl2Ga2S3Se crystals
IŞIK, MEHMET; YILDIRIM, TACETTİN; Hasanlı, Nızamı (2015-07-01)
Thermoluminescence (TL) properties of Tl2Ga2S3Se layered single crystals were researched in the temperature range of 290-770 K. U glow curve exhibited two peaks with maximum temperatures of similar to 373 and 478 K. Curve fitting, initial rise and peak shape methods were used to determine the activation energies of the trapping centers associated with these peaks. Applied methods were in good agreement with the energies of 780 and 950 meV. Capture cross sections and attempt-to-escape frequencies of the trap...
Citation Formats
S. UZUN DURAN, Ü. ALVER, B. Muçogllava, M. B. Demirköz, and F. ÖZKALAYCI, “Determination of neutron absorption rates of 5% colemanite, ulexite, B2O3 doped HDPE materials,” presented at the 10TH JUBİLEE INTERNATIONAL CONFERENCE ON RADIATION IN VARIOUS FIELDS OF RESEARCH (RAD 2022), Montero, Bolivya, 2022, Accessed: 00, 2023. [Online]. Available: