abdelmjid Nourreddine

abdelmjid Nourreddine

Université de Strasbourg

H-index: 19

Europe-France

About abdelmjid Nourreddine

abdelmjid Nourreddine, With an exceptional h-index of 19 and a recent h-index of 9 (since 2020), a distinguished researcher at Université de Strasbourg, specializes in the field of rayonnements ionisants dosimetrie.

His recent articles reflect a diverse array of research interests and contributions to the field:

Risk assessment of radon exposure inside residential dwellings in Safi city, Morocco

Validation of Monte Carlo simulations by experimental measurements of neutron-induced activation in cyclotrons

Study of the effect of temperature and water content on radon exhalation from phosphate using LR-115 detectors

Evaluation of the physicochemical, heavy metal and radiological contamination from phosphogypsum discharges of the phosphoric acid production unit on the coast of El Jadida …

Development of a 4π detection system for the measurement of the shape of β spectra

A study of grain size effect on radon exhalation rate and uranium content of a phosphate rock

RPL Neutron dosimetry in n-γ fields in comparison with polymer detectors type CR-39

Geometrical effects on luminescent dosimeter energy response

abdelmjid Nourreddine Information

University

Université de Strasbourg

Position

___

Citations(all)

1305

Citations(since 2020)

360

Cited By

1100

hIndex(all)

19

hIndex(since 2020)

9

i10Index(all)

39

i10Index(since 2020)

9

Email

University Profile Page

Université de Strasbourg

abdelmjid Nourreddine Skills & Research Interests

rayonnements ionisants dosimetrie

Top articles of abdelmjid Nourreddine

Risk assessment of radon exposure inside residential dwellings in Safi city, Morocco

Authors

Meryame Jabbade,Abdellatif Nachab,Meryam El Moutmir,Fatima Ezzahra Elmoutmir,Abdel-Mjid Nourreddine,Mohammed Benjelloun,Mohammed Fahad

Journal

International Journal of Environmental Analytical Chemistry

Published Date

2024/4/20

A radon study was conducted in 50 residences in Safi city, Morocco, using LR-115 detectors. The annual effective dose and Excess Lifetime Cancer Risk were also estimated. The measured radon concentrations ranged between the Lower Limit of Detection (LLD) and 132 Bq.m−3 with an arithmetic mean of 53 Bq.m−3 and a geometric mean of 41 Bq.m−3 (2.32). The results indicated that 58% of the obtained values exceeded the worldwide average value (39 Bq.m−3). In addition, the results revealed significant impacts of floor level and region on indoor radon levels. Inhabitants of the surveyed houses were found to receive a mean annual effective dose of 1.5 ± 0.1 mSv.y−1, corresponding to an Excess Lifetime Cancer Risk of 0.6%. Importantly, all annual effective dose values were below the recommended action level by the ICRP (3–10 mSv.y−1). Using the Ordinary Kriging method implemented in the QGIS …

Validation of Monte Carlo simulations by experimental measurements of neutron-induced activation in cyclotrons

Authors

Jonathan Collin,Jean-Michel Horodynski,Massimo Barbagallo,Federico Carminati,Giuliana Galli Carminati,Luca J Tagliapietra,Abdel-Mjid Nourreddine

Journal

EPJ Web of Conferences

Published Date

2023

Nuclear activation is the process of production of radionuclides by irradiation. This phenomenon concerns particle accelerators used in various fields, from medical applications to industrial ones, both during operation and at the decommissioning phase. For more than three decades, the possibility of using cyclotrons for nuclear power generation and nuclear waste reduction has also been discussed, i.e. in the case of Accelerator-Driven Systems [1]. The radioprotection and dismantling issues of accelerator facilities, that have been raised recently, is even more potent for such installations.In our study, we are particularly interested in the activation due to secondary neutrons produced by (x,n) reactions, mostly (p,n) occurring in the accelerator’s components. This work focuses on the study of the radioactivity induced in various materials (V, Sc, Tb, W, Ta) irradiated by fast and thermal neutrons, in two different scenarios …

Study of the effect of temperature and water content on radon exhalation from phosphate using LR-115 detectors

Authors

Meryame Jabbade,Abdellatif Nachab,Elmokhtar Elouardi,Abdel-Mjid Nourreddine,Ezzoura Errami,Mohammed Benjelloun,Mohammed Fahad

Journal

Radiation Protection Dosimetry

Published Date

2023/11

A study of the influence of moisture content on the radon exhalation rate from phosphate samples (with and without consideration of the back diffusion effect) was performed using the sealed cup technique. The mass exhalation rate was found to increase with an increase in moisture content, reaching a maximum value of 2.414 ± 0.034 Bq kg−1 h−1 with a moisture content of 10%. However, the mass exhalation rate decreased with a continued increase in moisture content above 25%. The mass exhalation rate was also measured at different temperatures between −10 and 50°C. The obtained results show that the mass exhalation rate increases linearly with temperature. We point out that all the obtained values of radon exhalation rate are lower than the world average radon exhalation rate (57.6 Bq m−2 h−1).

Evaluation of the physicochemical, heavy metal and radiological contamination from phosphogypsum discharges of the phosphoric acid production unit on the coast of El Jadida …

Authors

Fatima Ezzahra Arhouni,Mohammed Hakkar,Saad Ouakkas,Nils Haneklaus,Aziz Boukhair,Abdelmjid Nourreddine,Mohammed Benjelloun

Journal

Journal of Radioanalytical and Nuclear Chemistry

Published Date

2023/10

This work assesses potential physicochemical, metallic, and radiological contamination of liquid discharges from the phosphoric acid (PA) production unit at the coast of El Jadida Province in Morocco. The physicochemical parameters: pH, conductivity, salinity, turbidity, total hardness, nitrate, nitrite, orthophosphate, and heavy metals were analyzed in PA and beach samples. 238U, 232Th, and 226Ra were determined by gamma spectrometry, the Radon contents were determined using solid state detectors (LR-115). It is concluded that phosphate effluents are strongly acidic with a mean pH-value of 1.8 and that the discharges still contain relatively high levels of fluoride, phosphorus and radiological substances.

Development of a 4π detection system for the measurement of the shape of β spectra

Authors

Abhilasha Singh,Xavier Mougeot,Sylvain Leblond,Martin Loidl,Benoit Sabot,Abdel Nourreddine

Journal

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Published Date

2023/8/1

The need of precise measurements of the energy distribution of emitted β particles has been addressed developing a specific detection system. An ultra-thin radioactive source, prepared on purpose, is enclosed between two silicon detectors in a compact geometry with a quasi-4 π sr solid angle. The remaining distortions have been corrected with a dedicated deconvolution process based on mono-energetic Monte Carlo simulations that are used to build the response matrix. The β spectra from 14 C and 204 Tl decays have been measured and analyzed. Extracted maximum energies are fully consistent with the AME2020 recommended Q-values. A linear slope of a=− 0.430 (37) MeV− 1 that comes from the weak magnetism term in the 14 C beta spectrum has been determined, in excellent agreement with the theoretical predictions. The measured range of the 204 Tl beta spectrum has been extended down to 60 …

A study of grain size effect on radon exhalation rate and uranium content of a phosphate rock

Authors

Meryame Jabbade,Abdellatif Nachab,Abdel-Mjid Nourreddine,Ezzoura Errami,Mohammed Benjelloun

Journal

Acta Geophysica

Published Date

2022/12

Assessment of the exhalation rate allows a classification of materials according to their potential risk of exposure to radon. The present study investigates the granulation effect on the radon exhalation rates from a phosphate sample. The phosphate sample was sieved into different grain size dimensions ranging from < 0.063 to > 2 mm. The exhalation rate of each fraction was measured using the accumulation method. The radon exhalation rate was found to decrease with an increase in grain size above 0.125 mm. The influence of grain size on uranium content was also studied using the autoradiography method. The uranium concentration increased for the smallest grains (< 0.25 mm), reached a maximum for the grains (0.25–0.5 mm), and decreased for the larger grains (> 0.5 mm). The measured values of radon exhalation rates are under the limits reported worldwide.

RPL Neutron dosimetry in n-γ fields in comparison with polymer detectors type CR-39

Authors

Youbba Ould Salem,Halima Elazhar,Issiaka Traore,Jonathan Riffaud,Abdelmjid Nourreddine

Journal

Polymers

Published Date

2022/4/28

Previously we characterized radiophotoluminescent (RPL) detectors for measuring both fast and thermal neutrons for personal monitoring. The linear response and angular dependence, which satisfies the ISO 21909 standard makes their application possible in neutron dosimetry. The polymer CR-39 track detectors remain one of the most used dosimeters where neutron radiations are to be measured, but the visualization process is time consuming. The difference between results obtained by RPL and CR-39 has been discussed mainly for fast neutrons. The present study has also looked at thermal neutron dosimetry, where we found few results in the literature for CR-39. Our measurements demonstrate that RPL detectors can be advantageously incorporated into a dosimeter to measure thermal neutrons.

Geometrical effects on luminescent dosimeter energy response

Authors

A Benali,G Medkour Ishak-Boushaki,J Riffaud,A-M Nourreddine

Journal

Journal of Instrumentation

Published Date

2022/1/26

Luminescent dosimeters are widely used in medical applications. For an optimal use of these dosimeters, comparative studies of their characteristics, under clinical radiations, are veryáuseful. The purpose of this study is to establish the effect of dosimeter geometry on the luminescent dosimeter energy response for different clinical radiation beams. Monte Carlo simulations were used to calculate the energy response of three kinds of non-commercialized luminescent dosimeters. The dosimeters are: a) áradiophotoluminescent glass dosimeter (RPLGD, typeFD-7 glass), b) áthermoluminescent dosimeter (TLD, type LiF: Mg, Ti) and c) optically stimulated dosimeter (OSLD, type Al 2 O 3: C). The studied dosimeters have cylindrical geometry with a thickness ofá2mm and diameters ranging fromá1 toá13 mm. The radiation beams were 70 kV X-ray beam, clinical photon beam of 15 MV and clinical electron beam of 9 MeV …

12. ASSESSMENT OF ACTIVATION IN FOOD PRODUCTS IRRADIATED WITH HIGH ENERGY X RAYS

Authors

A Nourreddine,J Riffaud,A BELAFRITES,S CHEFSON,O COURSON,F KUNTZ,N LUDWIG,A NASREDDINE,YO SALEM,A SELLAM,A STRASSER,E WILHELM

Journal

IAEA TECDOC SERIES

Published Date

2022

The aim of the study is to investigate the amount of potentially induced radioactivity in food after irradiation by high energy X rays produced by an electron accelerator. The ultimate objective is to quantify with a high precision the induced radioactivity as a function of accelerator and food characteristics. The approach consists of combining experimental measurements and Monte Carlo simulations of radiation-matter interactions, so as to define a protocol that will enable levels of induced radioactivity to be assessed. Such assessments may be important for controlling the irradiation processes.

Impact of phosphate industry on natural radioactivity in sediment, seawater, and Coastal Marine Fauna of El Jadida Province, Morocco

Authors

Laila Belahbib,Fatima Ezzahra Arhouni,Aziz Boukhair,Aafaf Essadaoui,Saad Ouakkas,Mohammed Hakkar,Maged AS Abdo,Mohammed Benjelloun,Abdelali Bitar,Abdelmjid Nourreddine

Journal

Journal of Hazardous, Toxic, and Radioactive Waste

Published Date

2021/1/1

This study aims to investigate the radiological impact of phosphogypsum (PG) discharge on the marine environment along the coast of the province of El Jadida (Morocco). The specific activity of the main radionuclides present in the raw phosphates, PG, and coastal sands will be measured using gamma spectrometry. The volume activities of radon in samples of sand, seawater, and mussel type Mytilus galloprovincialis will be evaluated using passive alpha dosimetry based on the use of LR115 detectors. The analysis shows that the radioactivity of the raw phosphates was mainly attributed to the radionuclides of the uranium (238U) family that has a specific activity of approximately 1,264 Bq/kg. The results revealed that the production of phosphoric acid (H3PO4)using the wet process has caused a dramatic radioactive imbalance in the 238U family presented in the formed PG. This disequilibrium was due to a …

Application of luminescent detectors in quality assurance of clinical electron beam

Authors

A-H Benali,G Medkour Ishak-Boushaki,A-M Nourreddine

Journal

Journal of Instrumentation

Published Date

2020/11/27

Thermoluminescent dosimeters (TLD) are widely applied in quality assurance of external radiotherapy beam. The aim of this study is to check the possible use of radiophotoluminescent glass dosimeters (RPLGD), and optically stimulated luminescent dosimeters (OSLD) in quality assurance of clinical electron beam (used in radiotherapy treatments). For this purpose, we give in this paper, an estimation and a comparison of dosimetric parameters, characterizing dose profile and percentage depth dose (PDD) curves, for electron beam using the different studied detectors. The Monte Carlo MCNP5 simulation code was utilized to calculate the distribution of deposited energy along X-axis and PDD curves in a water phantom using RPLGD (FD-7glass), TLD (LiF: Mg, Ti) and OSLD (Al 2 O 3: C) for electron beam energies of 9, 12, 16 and 20 MeV. Our calculations show that the profiles for different electron energies are …

PADC RESPONSE TO 0.3-3 MeV PROTONS.

Authors

I Traoré,A Bâ,A Nourreddine

Journal

Nuclear Physics & Atomic Energy

Published Date

2020/9/1

Abstract Two types of Poly-Allyl-Diglycol Carbonate, the Neutrak and PN3 were investigated using track diameter distribution induced by the monoenergetic protons with energies in the range of 0.3 to 3 MeV. The energies and intensities were controlled by a silicon surface barrier detector and a nickel scattered foil placed in a 4 MV Van der Graaf accelerator. After different etching times, the etch track-sizes were scanned and measured with the optical microscope. PN3 and Neutrak track diameter responses to protons were measured, plotted, and discussed as a function of energy.

ТЕХНІКА ТА МЕТОДИ ЕКСПЕРИМЕНТУ ENGINEERING AND METHODS OF EXPERIMENT

Authors

I Traoré,A Bâ,A Nourreddine

Published Date

2020

Two types of Poly-Allyl-Diglycol Carbonate, the Neutrak and PN3 were investigated using track diameter distribution induced by the monoenergetic protons with energies in the range of 0.3 to 3 MeV. The energies and intensities were controlled by a silicon surface barrier detector and a nickel scattered foil placed in a 4 MV Van der Graaf accelerator. After different etching times, the etch track-sizes were scanned and measured with the optical microscope. PN3 and Neutrak track diameter responses to protons were measured, plotted, and discussed as a function of energy.

Experimental study of ???? spectra using Si detectors

Authors

Abhilasha Singh,Xavier Mougeot,Benoit Sabot,Didier Lacour,Abdel-Mjid Nourreddine

Journal

EPJ Web of Conferences

Published Date

2020

Several scientific users from different communities, such as nuclear medicine, ionizing radiation metrology, nuclear energy industries, and fundamental physics are seeking for a precise knowledge of beta spectra. Consequently, it is of great interest to investigate the spectral shape of beta decaying nuclei with best possible precision. In this work, we aim to investigate precisely β~ decays. For this purpose, we have developed a quasi 4π beta spectrometer based on Silicon detectors (PIPS®). The measurement system is characterized by conversion electron peaks of 109Cd and 207Bi and has been compared with Monte Carlo simulations using nuclear decay data. The preliminary measurements of 14C (allowed transition) and 36Cl (second forbidden non-unique transition) decays have been performed and compared with simulations using the PENELOPE Monte Carlo code.

See List of Professors in abdelmjid Nourreddine University(Université de Strasbourg)

abdelmjid Nourreddine FAQs

What is abdelmjid Nourreddine's h-index at Université de Strasbourg?

The h-index of abdelmjid Nourreddine has been 9 since 2020 and 19 in total.

What are abdelmjid Nourreddine's top articles?

The articles with the titles of

Risk assessment of radon exposure inside residential dwellings in Safi city, Morocco

Validation of Monte Carlo simulations by experimental measurements of neutron-induced activation in cyclotrons

Study of the effect of temperature and water content on radon exhalation from phosphate using LR-115 detectors

Evaluation of the physicochemical, heavy metal and radiological contamination from phosphogypsum discharges of the phosphoric acid production unit on the coast of El Jadida …

Development of a 4π detection system for the measurement of the shape of β spectra

A study of grain size effect on radon exhalation rate and uranium content of a phosphate rock

RPL Neutron dosimetry in n-γ fields in comparison with polymer detectors type CR-39

Geometrical effects on luminescent dosimeter energy response

...

are the top articles of abdelmjid Nourreddine at Université de Strasbourg.

What are abdelmjid Nourreddine's research interests?

The research interests of abdelmjid Nourreddine are: rayonnements ionisants dosimetrie

What is abdelmjid Nourreddine's total number of citations?

abdelmjid Nourreddine has 1,305 citations in total.

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