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JOURNAL OF NUCLEAR RESEARCH AND DEVELOPMENT, NO. 23, MAY. 2022

 CONTENT

Editorial

n Nuclear Development and the Changing Geopolitics

M. Constantin

 

1

 

 

 

 

n     Assessment of the Accidental Criticality for CANDU Fuel Bundles containing U-based Fuels

C.A. Mărgeanu, R. Joiţescu, S.C. Valeca

 

3

 

n  Neutron Activation Analysis of Uranium, Thorium and REE Distribution Pattern in certain ores 

M.H. Nassef, D.S. Al-Othmany

 

13

 

n Conceptual Design of an Innovative Molten Metal Micro Modular Reactor (4M)

B. Aliyari, M. Raghoshay, O. Noori-Kalkhoran

 

21

 

n Nuclear Safety Aspects associated to Increasing of U235 Enrichment for 37-Elements CANDU Fuel Bundles with SEU and RU Fuels 

G.R. Bezdedeanu, C.A. Mărgeanu

 

29

 

n Study to Assess the Ductile Fracture in Zr-2.5%Nb by J-Integral with the Finite Element Method   using the Gurson-Tvergaard-Needleman Model  

V. Radu, L. Stoica, D. Toma, V. Olaru

 

36

 

n Influence of Thermal Aging on Different Concrete Classes used in Nuclear Constructions

I. Sturzeanu

 

41

 

n Strontium Separation by Chromatographic Extraction Process for 90Sr Assessment

M. Dianu, M. Ilina

 

45

 

n Plasma Electrolytic Oxidation of Titanium and its Surface Chemistry Investigation

O.A. Rusu, V.C. Ion 

 

50

n Optimization of Gross Alpha and Beta Determination using a Low Background Gas-Flow Proportional Counter

V. Neculae, R. Dobrin, C. Dulama

 

55

 

n Fatigue Behaviour of Zy-4 Cladding under Cyclic Loads using Finite Element Modelling

E. Matei, A.C. Răduţ, D.F. Oproiu, D.V. Ionescu, I. Neacşu

 

59

 

Editorial policy and practices

 

67

Instructions for authors

 

70

 

Copyright © 2021 by the INSTITUTE FOR NUCLEAR RESEARCH, PITESTI, ROMANIA. All rights reserved.

 

Printed in ROMANIA, DELTA PRINT LINE SRL, Bucharest, May 2022

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