Calculation of alpha half-lives of radiosotopes by using different techniques

Abstract

ÖzRadioizotoplar¬ Alfa Yar¬Ömürlerinin De¼işikn gsTeknikler Kullanarak Hesaplanmas¬SÜR, SerapYüksek Lisans Tezi, Fizik Mühendisli¼i BölümügTez Yöneticisi: Prof. Dr. Zihni ÖZTÜRKTemmuz 2005Alfa yayan çift-çift, tek-tek, tek-çift ve çift-tek izotoplar¬ alfanyar¬ömürleri hesapland¬ve de¼işik metodlarla karşÂ¬ st¬ lmas¬yap¬ .gs s laş r¬ ld¬Tünelleme olas¬ g¬Coulomb engelini parçalara bölerek tan¬l¬ mland¬ .¼Elde edilen ard¬ ¬ tünelleme olas¬ klar¬alfa yar¬ömrünü tan¬şks l¬ mla-maya yard¬ mc¬olan tünelleme olas¬ g¬l¬ n¬elde etmek için birbirleriyle¼çarp¬ . Modelimizin avantajlar¬ ve dezavantajlar¬ de¼erlendirildi.ld¬ gTünelleme olas¬ g¬ dayanan basit modelimizin di¼er tekniklerlel¬ na g¼karşÂ¬ st¬ ld¬ ¬s laş r¬ g nda oldukça uygun sonuçlar sa¼lad¬ ¬gözlemlendi.g g¼ ¼Anahtar kelimeler: Alfa Bozunmas¬ Tünelleme olas¬ g¬ Yar¬, l¬ ,¼Ömür.1

AbstractCalculation of Alpha Half-Lives of Radioisotopes byUsingDi¤erent TechniquesSÜR, SerapM. Sc in Engineering PhysicsSupervisor: Prof. Dr. Zihni ÖZTÜRKJuly 2005The estimations and comparisions of alpha half-lives of alphaemitting isotopes of odd-odd, even-even, odd-even and even-odd nu-clei are made by using di¤erent methods. Tunnelling probabilitiesare determined by the breaking the Coulomb barrier into segments.The obtained succesive tunnelling probabilities are multiplied toobtain tunnelling probability utilized to determine alpha half-lives.The advantages and disadvantages of the model are discussed. Itis observed that an application of the simple model based on thetunnelling probability provides quite satisfactory results comparedto some other techniques.Key words: Alpha Decay, Tunnelling Probability, Half-life.1