Environmental Radiological Monitoring Laboratories: Capabilities and issues

Radiation Measurements Cross Calibration Workshop

N. Dehbi, K. Mrabit and T. KhoukhiCNESTEN - Morocco

National Center for Energy, Sciences and Nuclear Techniques

RMCC, 13-15 June, 2011Amman, Jordan

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Overview

• CNESTEN: Identity, missions and services• Environmental Monitoring Program• Technical Support to the Authorities• Radioecology and research Projects

CNESTEN

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• Public Institution

• Created on 1986

• Under the supervision of the Ministry of Energy, Mines, Water and Environment

Missions• Developing nuclear researches• Promoting nuclear applications• Technical support for Moroccan authorities (Safety, Radiation Protection, Radioactive waste Management…)

280 personnel were 70 % Scientifics:• doctors• engineers• technicians• administrative

Human Resources

CNESTEN: identity, missions and services

CNESTEN

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Nuclear Studies Center (CENM)

• Radioisotopes production for medical use;

• Neutron Activation;

• Non-destructive Testing;

• Gammagraphy;

• Nuclear Metrology;

• Radioimmunology;

• Radioactive waste management;

• Training, research & expertise;

Nuclear Studies Center - CENM enabledCNESTEN to have a Technologicalinfrastructure based around a researchreactor TRIGA Mark II of 2 MW power

CNESTEN

Application fields :• Nuclear Safety and Security• Radiation Protection• Radiological Monitoring of the Environment• Environmental Impact studies• Security of radioactive sources• Radioactive waste management• Medical physics• Radiological emergency preparedness• Physical protection

Main Laboratories and Tools :• Environmental Monitoring Laboratories• Dosimetry and Calibration Laboratories

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Safety & Security Direction

CNESTEN

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• Member of ALMERA IAEA Network• Member in NWAL IAEA Network (in progress)• IRSN - France• Service de Protection Radiologique des Armés SPRA -France • US Department of Energy DOE - USA

• LLNL• SNL

• Institut des Radioéléments IRE - Belgium• Commissariat à l'Energie Atomique CEA-France• University of Sevilla - Spain• Moroccan Academic Institutions & Universities•....•

Some partners

CNESTEN

The main regulatory mission :

• the monitoring of the CENM site and itsenvironment and the detection of any changesresulting from operation of facilities;

• to contribute in case of radiological emergencyto the Emergency Response plan byconducting in-situ measurements and/orlaboratory measurements to determine thestate of the environment of the CENM.

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Environmental Radiological Monitoring Program (1)

CNESTEN

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Environmental Radiological Monitoring Program (2)

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Laboratories and equipments

CNESTEN

Nuclear Measurement Techniques:• 4 chains of gamma spectrometry

• gamma spectrometry In-Situ (ISOCS)

• chains of alpha spectrometry

• Proportional gas counters

• Liquid Scintillation Counters • Dosimetric Exploitation Lab (TL

Dosimetry).• Gamma Calibration Lab (SSDL).• Whole Body Counting System• …

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Moroccan Norm NM ISO/CEI 17025 (2005): General Requirements for the competence oftesting and calibration laboratories Quality System: Implementation for NuclearAnalytical Techniques

• Determination of -emitters by GammaSpectrometry in Water and Soil samples

• Gross α/β emitters by Proportional GasCounter in Water samples

Quality and Accreditation

CNESTEN

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Technical Requirements

Management Requirements

- Organisation- Management System- Document Control- Purchasing- Complains treatment- Non-conformance treatment- Preventives & Correctives Actions- Internal Audits- Management reviews- …..

- Personnel- Management of influencing factors- Accommodation & Envir. Conditions- Validation of Methods - Equipments Control- Estimation of uncertainty of Measur.- Measurement traceability- Control of Records - Quality of Test & Calibration Methods-….

harmonize practices in laboratories through international standardized norms

NM ISO/CEI 17025: 2005

CNESTEN

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Internal Validation of Methods

CNESTEN

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External Quality Control

• Annual Participation at « The IAEA worldwide proficiency tests on the determinationof radionuclides in soil, spinach,phosphogypsum, water…

• Bi-annual Participation at « The MAPEPproficiency tests on the determination ofradionuclides and others elements in soil,vegetation, filter and water »

• Nuclear Measurement Techniques(gamma spectro, gross α/β counting,alpha spectro)• Inorganic analysis (ICP-OES)

CNESTEN

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MAPEP Proficiency Tests (1)

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MAPEP Proficiency Tests (2)

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IAEA Proficiency Tests

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• At the National level and at the request of authorities, the CNESTEN may intervene in case of emergency or radiological accident to determine, through field and laboratory measurements, the status of the radiological contamination of the environment.

• Furthermore, as a technical tool of the government of Morocco in the field of radiological safety, the Centre intervened at the request of authorities in two radiological warning situations, namely: - the accidental atmospheric release of Cesium-137 from a factory in

Algeciras (Spain) in June 1998; - the failure of British nuclear submarine called Tireless in Gibraltar in

2001.• In both cases, the CNESTEN sent his team specialize in environmental

monitoring and impact assessment to conduct inspections of environmental components especially marine water, plants, fishes of affected areas.

CNESTEN: Technical Support to the Authorities

CNESTEN

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- Since the detection of iodine I-131, the measurement results obtained at CENM to this date confirms a widespread presence of traces of iodine 131 in the air, grass and milk in relation to radioactive discharges in air of the Fukushima accident- The measured activities for the (Cesium-134, Cesium-137, Tellurium-132 ...) are mostly below the detection limits.

Very long distance Monitoring of the impact of Fukushima Accident (1)

CNESTEN

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Very long distance Monitoring of the impact of Fukushima Accident (2)

CNESTEN

On-line Radiation Monitoringsystem at CENM 16 Gamma iodine monitoring

system GIM204; 05 Aerosol monitoring system

ABPM201L 08 Iodine Aerosol monitoring

system IM201L 01 Iodine Aerosol monitoring

system IM125 10 Aerosol monitoring system type

APEA Promindus 07 RAM Air Monitoring (reactor

building) 03 Continuous Air Monitoring

(reactor building)

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Radiological Monitoring at the New Port of Tangier after Fukushima Accident

CNESTEN

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eg. International Exercise Rabat 2011: a combination of TTX and Field Exercise hosted by the Kingdom of Morocco under GICNT in support of Principles 4 (Improve capabilities of participants to search for, confiscate, and establish safe control of unlawfully held nuclear or other radioactive materials) and 7 (Improve capabilities for response, mitigation, investigation and technical means to identify nuclear and other radioactive materials involved in the incident).

Participation at the National and International Emergency Preparedness and Response Exercises

CNESTEN

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SPARCS (Spectral Advanced Radiological System)

CNESTEN

- Mobile Detection- Radiological data acquisition and analysis system designed for the nuclear or radiological emergency response mission. - Portable, readily mounted in almost any vehicle, boat or aircraft

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Environmental Impact studies (IXP)

The International Exchange Program (IXP) is 24/7 on-call support for radiological dispersal and plume modeling and includes:

- Dispersal and plume model predictions within 15 minutes

- Ready access to advanced radiological dispersion models and worldwide atmospheric weather databases

- Access to IAEA protection action guides or user input guides

- Advanced scientific support and interpretation upon request

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Radioecology: Transfer Kinetics and 3D Hydrodynamic Model

CNESTEN

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10Data: Data- Cd-2Model: Two-stepChi^2 = 0.16307P1 0.51765 ± 0.0242P2 180.75711 ± 53.37449P3 0.23134 ± 0.02699P4 0.11667 ± 0.04484

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10 Data: Data- CrModel: Two-stepChi^2 = 0.17738P1 0.34456 ± 0.02386P2 218.30025 ± 121.94706P3 0.25294 ± 0.02485P4 0.10706 ± 0.03705

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The 3D equations

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انتباھكم شكراً على Thank you

Email: dehbi@cnesten.org.ma

CNESTEN