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Bulk etch rates of CR-39 at high etchant concentrations:diffusionlimited etching

Nuclear Science and Techniques 2020年第12期31卷 41-49页

作者： E.M.Awad M.A.Rana mushtaq abed al-jubbori Physics Department Faculty of ScienceMenoufia UniversityShebin El-KoomMenoufia 32511Egypt MERADD Instrumentation Control and Computer Complex(ICCC)PARAS Building18-KM Multan RoadP.O.ChungLahorePakistan Department of Physics College of Education for Pure SciencesUniversity of MosulMosul 41001Iraq

Systematic CR-39 bulk etching experiments were conducted over a wide range of concentrations(2–30 N)of NaOH-based *** analysis and a deep discussion of the results are presented.A comprehensive nuclear track chemical etching data bank was *** regimes of CR-39 bulk etching were *** I spans etchant concentrations from 2 to 12 *** II spans concentrations from 12 to 25 *** call this the dynamic bulk etching *** III is for concentrations greater than 25 *** this regime,the bulk etch rate is saturated with respect to the etchant *** classification is discussed and *** role of ethanol in NaOH-based etchants is explored and discussed.A parameter called the “reduced bulk etch rate” is defined here,which helps in analyzing the dependence of bulk etching on the amount of ethanol in the *** bulk etch rate shows a natural logarithmic dependence on the density of ethanol in the etchant.

关键词： CR-39 detector Ethanol Bulk etch rate Reduced bulk etch rate Diffusion-limited etching Concentration-limited etching

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Properties of even 168-178 Hf isotopes using IBM-1 and SEF

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Chinese Physics C 2017年第8期41卷 93-100页

作者： mushtaq abed al-jubbori Khalaf Ajaj al-Mtiuty Khaliel.I.Saeed Fadhil I.Sharrad Department of Physics College of Education for Pure ScienceUniversity of Mosul41001 MosulIraq Department of Physics College of Education for Pure ScienceUniversity of MosulIraq Ministry of Education 41001 MosulIraq Department of Physics College of ScienceKerbala University56001 KarbalaIraq

The properties of the ground and excited-state（γ-and β-bands） of ^168-178 Hf nuclei have been *** ratio r（I ＋2/I） and Eγ（I→I-2）/I have been calculated as a function of the spin（I） to determine the groundstate evolution. The results indicate that these isotopes have a rotational property SU（3）. The energy levels for the ground-state, γ-and β-bands of ^168-178 Hf have been calculated using the Interacting Boson Model and Semi Empirical Formula（SEF）. The parameters of the best fit to the measured data are determined. The behavior of energy and B（E2） ratios in the ground state band are examined.

关键词： IBM SEF energy level B(E2) value Hf isotopes

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Nuclear Structure and Electromagnetic Transitions Investigation in Er Isotopes within Framework of Interacting Boson Model

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Communications in Theoretical Physics 2013年第9期60卷 335-340页

作者： S.N.Abood M.A.al-jubbori Department of Physics College of ScienceAL-Nahrain University Department of Physics College of EducationMosul University

Interacting Boson Model-2(IBM-2)is used to determine the Hamiltonian for Er *** values of parameters are used to construct the Hamiltonian,energy levels and electromagnetic transitions(B(E2),B(M1))multipole mixing ratios(δ(E2/M1))for some even-even Er nuclei and monopole transition probability are *** ideas are used for counting bosons number at N=64 and results are compared with previous works.

关键词：相互作用玻色子模型电磁跃迁核结构同位素框架哈密顿量 IBM-2 能量水平

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Ground States Structure of Ruthenium Isotopes with Neutron <i>N</i>= 60, 62

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World Journal of Nuclear Science and Technology 2020年第2期10卷 76-84页

作者： I. Hossain Huda H. Kassim mushtaq A. al-jubbori Fadhil I. Sharrad Said A. Mansour Department of Physics Rabigh College of Science & Arts King Abdulaziz University Jeddah Saudi Arabia Department of Physics College of Science Kerbala University Karbala Iraq Department of Physics College of Education for Pure Science University of Mosul Mosul Iraq College of Health and Medical Technology Al-Ayen University Al Nasiriya Thi Qar Iraq

In this paper, Ruthenium Isotopes with neutron N = 60, 62 have been studied the ground state bands using Matlab computer code interacting boson model (IBM-1). We apply IBM-1 formula for O(6) symmetry in Ru isotopes with neutron N = 60, 62. The theoretical energy levels up to spin-parity 12+ have been obtained for 104,106Ru isotopes. The yrast states, gamma band, beta band, and B(E2) values are calculated for those nuclei. The experimental and calculated R4/2 values indicate that the even-even 104-106Ru isotopes have O(6) dynamic symmetry. The calculated results are compared to the experimental data and are found in good harmony with each other. The plots of the potential energy surface of both nuclei are O(6) characters.

关键词： Ruthenium Isotopes Interacting Boson Model-1 Potential Energy Energy Level

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