Neutron yield estimation for some medium isotopes nuclei due to proton, alpha and neutron reactions for energy range (10 -50)‎ MeV

العناوين الأخرى

تقدير الحاصل النيتروني لبعض نوى النظائر المتوسطة نتيجة لتفاعلات البروتون و جسيمات ألفا و النيوترون لمدى طاقة (E=10-50)‎ MeV

مقدم أطروحة جامعية

Muslim, Rafat Abd al-Hasan

مشرف أطروحة جامعية

Mahdi, Khalid Hadi

أعضاء اللجنة

Mansur, Hazim Luwis
Abd al-Amir, Fatimah
al- Ani, Nidhala H. K.
al-Ani, Lath A.
Husayn, Haydar Hamzah

الجامعة

جامعة بغداد

الكلية

كلية التربية للعلوم الصرفة-ابن الهيثم

القسم الأكاديمي

قسم الفيزياء

دولة الجامعة

العراق

الدرجة العلمية

دكتوراه

تاريخ الدرجة العلمية

2015

الملخص الإنجليزي

Isotopes have a great importance in many fields such as research, industrial, medical and other.

Some of them need isotopes with long half life or short half-life with high neutron yield or less for them.

So this work included the study of the nuclear properties for nine medium elements (Ca, Sc, Ti, Ni, Cu, Zn, Zr, Nb and Mo), from each element we choose 10 isotopes, so the total are 90, their masses numbers were between (41 to 96), this study included the calculations of the Q-value reaction, threshold energy, reduced mass, separation energy of neutron and the binding energy for nuclear reactions , Ca(a,n)Ti , Ni(a,n)Zn ‘ Zr(a,n)Mo , Sc(p,n)Ti , Cu(p,n)Zn , Nb(p,n)Mo , Ti(n,n)Ti Mo(n,n)Mo and Zn(n,n)Zn for the isotopes of the above elements, also we calculated the stopping power by using a (SRIM 2013), then the neutron yield was calculated from theoretical equations depending on most recent cross-sections (2010.2012), as well as this study focused on the extraction of a set of uniform empirical equations to calculate the neutron yield in directly for (a, n) and (p, n) reactions for these elements, and each of them includes 10 isotopes so the total reactions are 60.

The result of neutron yield for these equations was in a good agreement with theoretical value which is calculated from the theoretical equations.

These set equations with their coefficients were put within the MATLAB program, it was designed for this purpose and by depending on the element type, the type of reaction and incident particle energy to find the neutron yield for any isotope, their mass number is between (40-100) for energy range within the (15-50) MeV.

This program can be developed to include a greater number of elements with their isotopes and for larger energy range.

التخصصات الرئيسية

الفيزياء

عدد الصفحات

170

قائمة المحتويات

• APA
• MLA
• AMA

لغة النص

الإنجليزية

نوع البيانات

رسائل جامعية

رقم السجل

BIM-737755