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Öğe Determination of the energy transitions and half-lives of Rubidium nuclei(DE GRUYTER POLAND SP ZOO, 2018) Bicer, Ahmet; Manisa, Kaan; Calik, Abdullah Engin; Erdogan, Mehmet; Sen, Mursel; Bircan, Hasan; Dapo, HarisThe photonuclear reactions, first extensively studied in the 1970's and performed using the gamma rays obtained via bremsstrahlung, are a standard nuclear physics experiment. In this study, a non-enriched Rubidium sample was irradiated with photons produced by a clinical linear electron accelerator (cLINACs) with energies up to 18 MeV with the aim of activating it through photonuclear reactions. The activated sample was measured with a high purity germanium detector (HPGe) with the aim of measuring the transition energies and half-lives. The spectroscopic analysis performed on the obtained data yielded high quality results for the transition energies with precision matching or surpassing the literature data. For the half-lives the results were consistent with the literature, most notably the half-life of Rb-84m decay was determined as 20.28(2) m. The results for both energies and half-lives further show that the clinical linear accelerators can be successfully used as an efficient tool in experimental nuclear research endeavors.Öğe Equation of State of Asymmetric Nuclear Matter: A VMC Study(De Gruyter Open Ltd, 2010) Manisa, Kaan; Atav, Ülfet; Sarıaydın, SibelA Variational Monte Carlo (VMC) method is employed to investigate the properties of symmetric and asymmetric nuclear matter. The realistic Urbana V (14) twonucleon interaction potential of Lagaris and Pandharipande was used to describe the microscopic interactions. Also, many body interactions are included as a density dependent term in the potential. Total kinetic and potential energies per particle are calculated for asymmetric nuclear matter by VMC method at various densities and isospin asymmetry parameters. The results are compared with data found in literature, and it was observed that the results obtained in this study reasonably agree with the results found in the literature. Also, the symmetry energy and incompressibility factor of the nuclear matter were obtained. The results obtained are in good agreement with those obtained by various authors with different methods and techniques.Öğe Gama ve X-Işını Radyasyonu Yarı Değer Kalınlık Değerinin Hesaplanması için Yeni Bir Denklem(2017) Bircan, Hasan; Manisa, Kaan; Atan, Ayşe Semra; Erdoğan, MehmetNIST standartlarına uygun olarak literatürden [1,2] alınan kurşun, alüminyum hava ve suyun kütle soğurma katsayı değerleri kullanılarak X-Işını ve Gama radyasyon soğurma kalınlıkları hesaplanmıştır. [0,001-20] MeV enerji aralığında yarı değer soğurma kalınlıklarının direk hesaplanabileceği bir denklem önerilmiştir. Denklemin sabitleri radyasyonu soğuran madde için özeldir. Yarı değer kalınlık değerlerinin enerjiyle değişimi gösterilmiştir. Yarı değer kalınlık değerleri kullanılarak onda bir kalınlık değerleri ve tekrarlama kalınlık değerleri hesaplanabilir. Bu çalışmada önerilen eşitlik radyasyon zırhlama kalınlıklarını pratik bir şekilde hesaplayabilirÖğe Konya-Ilgın-Çavuşçu Linyit Maden Yatağında Dış Ortam Gama Doz Oranlarının Belirlenmesi(2016) Manisa, Kaan; Erdogan, MehmetBu çalışmada Konya'nın Ilgın ilçesindeki linyit kömür yatağındaki doğal olarak oluşmuş radyoaktif çekirdeklerden kaynaklanan karasal gama doz oranları belirlenmiştir. Ölçümler, toprak yüzeyinin üstünde ve NaI(Tl) gama-ışın detektörü kullanılarak gerçekleştirilmiştir. Ayrıca, ölçülen bu karasal gama doz oranları kullanılarak her bir ölçüm noktası için ortalama harici yıllık etkin dozlar hesaplanmıştırÖğe THE MEASUREMENT OF RADON ACTIVITY CONCENTRATIONS IN TAP WATER IN SOME DWELLINGS OF KONYA PROVINCE - TURKEY(NORTH UNIV BAIA MARE, 2015) Erdogan, Mehmet; Manisa, Kaan; Tel, FidanRadon (Rn-222) concentration was determined in selected 27 tap water samples collected during autumn and winter seasons in 2012 around city of Konya, Turkey. While 11 tap water samples were taken from dwellings with water reservoir, other tap water samples were taken from dwellings without water reservoir. Radon measurements were performed by an AlphaGUARD radon gas analyzer. All determined the mean radon concentrations for the autumn and winter seasons were found to be 3.15 Bq l(-1) for the samples collected from dwellings with water reservoir and 10.20 Bq l(-1) for the samples collected from dwellings without water reservoir. The calculated effective doses for ingestion were 0.17 for minimum and 3.67 mu Sv a(-1) for maximum and for inhalation of radon in indoor air caused by these waters 2.18 mu Sv a(-1) for minimum and 45.84 mu Sv a(-1) for maximum.Öğe NUCLEAR MATTER INCOMPRESSIBILITY: FROM VMC TO SKYRME-LANDAU PARAMETERIZATION(JAGIELLONIAN UNIV PRESS, 2017) Manisa, Kaan; Erdogan, Mehmet; Bircan, Hasan; Erdogan, Nevin ZeynepThe new Skyrme parameter set is determined by requiring that Variational Monte Carlo (VMC) calculations reproduce empirical values for properties of nuclear matter, such as binding energy per particle and saturation density. We found the new Landau parameter set by using the new Skyrme parameter set, the saturation density, and energy obtained from the new Skyrme parameter set for symmetric nuclear matter (SNM). Incompressibility of symmetric nuclear matter is also calculated by the described Skyrme-Landau Parameterization.
