Show: 25 50 75 100 Results

Search results: 7 out of 7

حساب مستويات الطاقة للنوى 90Zr,91Nb, 92Mo, 93Tc, 140Ce AND 210 Po وفحص تاثير الترتيب الممزوج == ENERGY LEVELS CALCULATION FOR 90Zr,91Nb, 92Mo, 93Tc, 140Ce AND 210 Po NUCLEI AND AN INVESTIGATION OF THE CONFIGURATION MIXING EFFECT

Author name: علي خلف حسن السنيد
Supervisor name: عبد الرضا حسين صبر
General topic: Physics
Degree: Doctorate
Language: English
University location: Basrah

تحديد تركيز الرادون ²²²Rn والثورون ²²?Rn في الفواكه المحلية والمستوردة والخضروات المحلية باستخدام تقنية كواشف الاثار النووية الصلبة == Determination of Radon ²²²Rn and Thoron ²²?Rn Concentration in Local and Imported Vegetables and Fruites By Using (SSNTDs) Technique

Author name: نعمان سليم هاشم
Supervisor name: عيسى جاسم الخليفة | حمزة بكر سلمان
General topic: Physics
Degree: Master
Language: Arabic
University location: Basrah
First pages:

تحديد تركيز غاز الرادون في التربة والمياه الطبيعية لانهار وابار محافظة البصرة باستخدام كواشف الاثر النووي == Determination of Radon Activity in Soil and Natural Water for Rivers and Wells of Basrah Governorate by Using Solid State Nuclear Detectors

Author name: حسام نجم عبود
Supervisor name: عيسى جاسم الخليفة | حمزة بكر سلمان
General topic: Physics
Degree: Master
Language: Arabic
University location: Basrah
First pages:

تحديد النشاط الاشعاعي للنظائر المشعة 137Cs,134Cs,I131,40Kفي الاغذية المستهلكة في مدينة البصرة جنوب العراق == Radiation activity determination of 137Cs,134Cs,I131,40K and in food consumed in Basrah South of Iraq

Author name: مروة جواد كاظم راضي
Supervisor name: عبد المنعم خليل الكامل | علي عبد عباس الربيعة
General topic: Physics
Degree: Master
Language: Arabic
University location: Basrah
First pages:
Abstract: SAM 940TM detector has been used to detect and identify the radioactive isotopes (Radio - Isotope Identification (RIID)) at low levels of gamma rays emitted from food materials.Six samples of fresh milk have been pick out for six locations in Basrah. Ten samples of imported milk powder have been taken into account. Ten samples of lentils, rice, coffee and tea have been taken into account.Eight samples of mineral water, one of distilled water and one sample of piped water; the last one has been picked out from the net distributed water at physics department building in college of science university of Basrah.The results of our study show that, the annual effective dose for the radioactive potassium ????40 in food materials of the highest value. For local fresh milk is (0.216,0.529)mSv/y for adults and children respectively. It is of these samples have been taken from Zubair city, and its less value is (0.076,0.186)mSv/y for adults and children respectively. These samples have been taken from Abuo Al Kasseb. As for the imported milk powder, the highest value is (0.556,1.349) mSv/y for adults and children respectively. The sample is related to Al - munash milk from New Zealand, and less value is (0.272,0.660)mSv/y for adults and children respectively. The sample is related to modhash imported milk powder from Oman.For rice, the highest value is (0.303,0.636) mSv/y for adults and children respectively. The sample is related to Mahmood rice from India, and less value is (0.149, 0.313) mSv/y for adults and children respectively. That is for Galaxy rice imported from India.As for lentils, the highest value is (0.029 ,0.061) mSv/y for adults and children respectively. The sample is related to Wade al akdar lentils from Syria, and its less value is (0.020,0.042)mSv/y for adults and children respectively for Urbak lentils imported from Tukey. For water, the highest value is (0.189, 0.398) mSv/y for adults and children respectively for distilled water and Janaan drinking water from Baghdad. Its less valueis (0.183, 0.385)mSv/y for adults and children respectively for Aquafina drinking water imported from Kuwait.For coffee, the highest value is (0.041) mSv/y for adults for two samples from Brazil and one sample from Spain and other produce from Poland. Its less value is (0.019)mSv/y from European Union production. For tea, the highest value is (0.019, 0.039) mSv/y for adults and children respectively for Jant almunaash and Gazalian samples tea, its less value is (0.008,0.015)mSv/y for adults and children respectively for Alwaza, Mahmood and Baiet alteb samples tea imported from Sri Lanka.The annual effective dose of Iodine ????131 , Cesium ????????134 and Cesium ????????137 in lentils, rice, coffee, tea, mineral water, distilled water and piped water have been carried out and the results are listed in thesis.

دراسة نظرية للخواص النووية للانوية السوجية - السوجية 198 - 208Po و200 - 210Rn و218 - 228Ra و218 - 228Th و226 - 236U ا بسثعمال انموذج البوزونات المتفاعلة بنسختيه IBM - 1 وIBM - 2 == Theoretical Study for the Nuclear Properties of the even - even 198 - 208Po,200 - 210Rn,218 - 228Ra, 218 - 228Th,226 - 236U by using the Interacting Boson Model IBM - 1 , IBM - 2

Author name: علي فاخر حبيب
Supervisor name: عبد الرضا حسين صبر
General topic: Physics
Degree: Master
Language: Arabic
University location: Basrah
First pages:
Abstract: This work aims to study the details the nuclear structure of selected heavy nuclei 198 - 208Po ,200 - 210Rn, 218 - 228Ra, 218 - 218 - 228Th and 226 - 236U, due to the important of nuclear structure of these nuclei in applied nuclear physics. In this study two IBM version have been used, IBM - 1 and IBM - 2. The versions of model used to described the ground band, quizi - beta and quadruple reduced transition probability B(E2) for selected transition. Also, the IBM - 2 version has been used to calculate the magnetic reduce transition probability B(M1) and mixing ratio for group transition emitted from ground band, quazi - beta and quazi - gamma band . the mixed symmetry states and the effect of majorana parameters of the energy of these state have been studied extensively .the potential energy surface of each isotope has been produced as contour lines using the output of IBM - 1.From the result calculation it is found that there is an agreement between the available experimental data and the calculated results of both IBM - 1 and IBM - 2 . The agreement concerns the energies of ground band and less in the beta and gamma band for 198 - 208Po isotopes. Also we have agood agreement in values of B(E2) and B(M1) from the results of the two version. It is noticed that all the studied isotopes are belong to the vibrational U(5) limit.The result of 200 - 210Rn isotopes show closed to the vibrational U(5) moving toward the O(6) . the calculated values are very closed the experimental data for the positive parity states of the ground, beta and gamma bands with increasing of energy value near the closed shell.The variable position of 218 - 228Ra isotopes between the three limits of IBM - 1 ((SU(3), O(6), U(5)) ,where is; these isotopes moving towards rotational away from the closed shell . We notice the excellent agreement between calculated values and available experimental data for energy level and other nuclear properties. The value of E41/E21 for 218 - 228Th isotopes decreases with moving away from the closed shell, in the same time; the values of level energies decreases also. The agreement between the experimental and calculated values of energy level is very clear for energy level and B(E2) and B(M1) values.All studied 226 - 236U are belong to the rotational SU(3) limit and both versions of the model succeed in producing such limit and found agood agreement for all the bands specially the IBM - 2. It is found that the change in the Majorana parameter FS has an effect on the energy of the mixed symmetry state in studies isotopes . The B(E2) values also calculated and compared with experimental data.In the comparison between all the studied nuclei it is found that systematic of energy level of single nucleus and all isotopes it is found that the energy of the first excited state is different for such isotope and also the ratio of E41/E21 found to be moving toward rotational limit with increase of atomic number. In the present work we found that the ratio N/Z is always agree when we used different isotopes in the studied nuclei

قياس تراكيز الرادون للمستشفيات ,المراكز الصحية والمنازل وقياس البورون في مياه محافظة ذي قار - العراق == Measurements of Radon in Hospitals, Health Centers and Dwelling as well as Boron Measurements in Water of Thiqar Governorate(Iraq)

Author name: احمد عباس محمد
Supervisor name: عيسى جاسم محمد الخليفة
General topic: Physics
Degree: Doctorate
Language: English
University location: Basrah
First pages:
Abstract: العمل الحالي يتضمن ثلاث دراسات اجريت جميعها في محافظة ذي قار جنوب العراق, حيث استخدم 976 نموذج فيها.الدراسة الاولى استخدمت 625 نموذج من كاشف الاثر LR 115 Type II جمعت من 40 منزل في كل قضاء , حيث تم قياس مستويات الرادون وخطر الاصابة بسرطان الرئة من خلال الطريقة السلبية . النتائج اظهرة مستويات مرتفعه وخصوصا في المطبخ مقارنتا مع الاماكن الاخرى وذلك بسبب غاز الطبخ والمياه المستعملة. ان المعدل للجرعة المكافئة السنوية للمطبخ تتغير من 2.316±0.172 في الناصرية الى0.759±0.0348 في سوق الشيوخ .اما الدراسة الثانية فقد استخدمت 186 نموذج من كاشف الاثر LR 115 Type IIجمعت من 57 مستشفى ومركز صحي , حيث استعملت الطريقة اعلاه لقياس مستويات الرادون وخطر الاصابة بسرطان الرئة هناك.لقد اظهرت النتائج ان مستويات الرادون في المستشفيات اعلى من نظيرتها في المراكز الصحية. ان اعلى معدل للجرعة المكافئة السنوية للمراكز الصحية 2.504±0.114 mSv/y بينما للمستشفيات3.150±0.091 mSv/y. في كلى الدراستين اعلاه وجد ان اغلب الجرعات الاشعاعية , ليست اعلى من المعدل العالمي 2.4 mSv/y , ولذلك فانها لا تشكل خطرا جديا على المتواجدين.ان الدراسة الثالثة هدفها قياس تراكيز البورون في مياه محافظة ذي قار , حيث ان امدادات المياه تاتي من مصدرين رئيسين وهما نهري دجلة والفرات, حيث جمع 165 نموذج من 55 موقع لثلاثة انواع من المياه (مياه نهر, مياه اسالة , مياه شرب) واستخدمت الطريقة اللونية لقياس تركيز البورون في عينات الماء. ان اعلى التراكيز سجلت لمياه الانهر في قضاء الناصرية 1.729 mg/l , ولمياه الاسالة سجلت في قضاء الجبايش 0.3 mg/l , اما مياه الشرب فسجلت في قضاء الجبايش 0.286mg/l ,حيث النتائج اظهرت كذلك ان نهر الفرات اكثر تلوثا بعنصر البورون وذلك بسبب ان المناطق ذات الكثافة السكانية العالية ,المصانع والمنشات الكبيرة تقع على ضفافه , حيث ان معدل لتراكيز البورون لنهر دجلة 0.244 mg/l , بينما لنهر الفرات 0.794 mg/l . الدراسة الحالية اظهرت ان تراكيز البورون لنهر دجلة ليست اعلى من المعدل العالمي (اقل من 0.5 mg/l) . بشكل عام نتائج نهر الفرات اعلى من المعدل العالمي 0.5 mg/l , ولكنها تبقى ضمن المستويات المنخفضة لتراكيز البورون , حيث حدد الاتحاد الاوربي المستويات المقبولة ب 1.0 mg/L عام 1998 , اما نيوزيلندا فحددته ب 1.4 mg/L. | The present work included three studies carried out in Thiqar Governorate southern of Iraq, where 976 samples has been used .The first study used 625 samples of LR 115 Type II dosimeters where collected from 40 dwelling in each distract, Passive method is used to measure the radon indoor levels and lung cancer risk. The results show higher indoor radon levels and radon effective dose especially in kitchen as compared to other locations. High values of radon activity may be due to use of water and cooking gas in kitchen.The average annual effective dose for kitchen varying from 2.316±0.172 mSv/y recorded in Al Nasiriya district to 0.759±0.0348 mSv/y recorded in Suq AlShyouk district.The second study used 186 samples of LR 115 Type II dosimeters collected from 57 Hospitals and Health centers, also Passive method is used to measure the radon indoor levels and lung cancer risk. The results show that the calculated indoor radon levels and radon effective dose in Hospitals are higher than that in Health Centers.The maximum average annual effective dose in Health Centers is 2.504±0.114 mSv/y , while for Hospitals is 3.150±0.091 mSv/y.In the two studies most of the radiation dose are not higher than the world wide average back ground dose of 2.4 mSv/y and hence they does not pose any serious threat to the occupants.The third study aims is to measure the concentration of boron in waters of Thiqar Governorate (southern of Iraq), the water is supplied from two major sources (Tigris and Euphrates Rivers). 165 samples collected from 55 location for three types of water (rivers water, Tab water, drink water). Colorimetric curcumin method is used to measure the boron concentration in the water samples. The maximum Boron concentrations in Thiqar Governorate for River water (surface water) (1.729 mg/l) in Nasiriya district, Tab water(0.3 mg/l) in Chibiesh district and Drink water (0.286mg/l) in Chibiesh district. The results shown that Euphrates river is more polluted with boron element, because its pass in highly occupied region and meager factories ,facilities lay on it, where Tigris average value 0.244 mg/l,while Euphrates average value 0.794 mg/l.The present work shows most of the boron concentration in Tigris river aren't higher than the world wide back ground <0.5 mg/l. In general Euphrates river results are higher than the world wide back ground, but it's still in the low concentration levels for boron, where the European Union established a value of 1.0 mg/L for boron in 1998 for the quality of water intended for human consumption, also New Zealand has established a drinking water standard for boron of 1.4 mg/L

دراسة تاثير الاشعاع النووي في الخلايا الشمسية البوليمرية == study the effect of nuclear radiation polymers solar cells

Author name: هدى شاكر غاليي الكناني
Supervisor name: حسين علي حسين الخرسان | باسل علي عبد الله
General topic: Physics
Degree: Master
Language: Arabic
University location: Basrah
First pages: