THE CALCULATIONS OF (P,XN) REACTIONS CROSS SECTIONS OF 203, 205Tl TARGET NUCLEI BY USING PROTON CYCLOTRON

Yıl 2007, Cilt: 2 Sayı: 2, 152 - 159, 01.12.2007

Abdullah Aydın

Öz

In this study, the new calculations on the excitation functions of 203Tl(p,2n)202Pb, 203Tl(p,3n)201Pb, 203Tl(p,4n)200Pb, 205Tl(p,2n)204Pb, 205Tl(p,3n)203Pb and 205Tl(p,4n)202Pb reactions have been carried out in the 5-70 MeV incident proton energy range. In these calculations, the pre-equilibrium effects have been investigated. The pre-equilibrium calculations involve hybrid model, geometry dependent hybrid model and the cascade exciton model. The calculated results are compared with the experimental data taken from the literature. 

Anahtar Kelimeler

203, 205Tl, Pre-equilibrium reactions, Exciton model, Proton cyclotron

PROTON SİKLOTRONU KULLANARAK 203, 205Tl HEDEF ÇEKİRDEKLERİNİN (P,XN) REAKSİYON TESİR KESİTLERİNİN HESAPLANMASI

Öz

Bu çalışmada, 5-70 MeV proton gelme enerji aralığında; 203Tl(p,2n)202Pb, 203Tl(p,3n)201Pb, 203Tl(p,4n)200Pb, 205Tl(p,2n)204Pb, 205Tl(p,3n)203Pb ve 205Tl(p,4n)202Pb reaksiyonlarının uyarılma fonksiyonlarının yeni hesaplamaları yapılmıştır. Bu hesaplamalarda, denge-öncesi etkiler incelenmiştir. Denge öncesi hesaplamalar için; hibrid model, geometri bağımlı hibrid model ve cascade exciton model kullanılmıştır. Hesaplanan sonuçlar literatürden alınan deneysel verilerle karşılaştırılmıştır.

Bu çalışmada, 5-70 MeV proton gelme enerji aralığında; 203Tl(p,2n)202Pb, 203Tl(p,3n)201Pb, 203Tl(p,4n)200Pb, 205Tl(p,2n)204Pb, 205Tl(p,3n)203Pb ve 205Tl(p,4n)202Pb reaksiyonlarının uyarılma fonksiyonlarının yeni hesaplamaları yapılmıştır. Bu hesaplamalarda, denge-öncesi etkiler incelenmiştir. Denge öncesi hesaplamalar için; hibrid model, geometri bağımlı hibrid model ve cascade exciton model kullanılmıştır. Hesaplanan sonuçlar literatürden alınan deneysel verilerle karşılaştırılmıştır.

Anahtar Kelimeler

203, 205Tl, Denge-öncesi reaksiyonlar, Exciton model, Proton siklotronu

Kaynakça

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