D. DEGUELDRE ~ C. VANDECASTEELE ~ L. DEPUYDT

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Presentation transcript:

D. DEGUELDRE ~ C. VANDECASTEELE ~ L. DEPUYDT IAEA International Conference on Global Emergency Preparedness and Response Vienna, 19-23 October 2015 Recent Initiatives for Improving the Protection of the Intervening Personnel during a Nuclear or Radiological Emergency in Belgium D. DEGUELDRE ~ C. VANDECASTEELE ~ L. DEPUYDT IAEA International Conference on EP & R - 19-23/10/2015

IAEA International Conference on EP & R - 19-23/10/2015 Contents Introduction – General context Dedicated WG : working method & outcomes Generic Operational schemes for the active dosimeters Perspectives Conclusions IAEA International Conference on EP & R - 19-23/10/2015

Introduction – General context Adequate protection of intervening personnel during emergency = Key issue Various types of protections to be considered, including active dosimeters Large diversity of equipment, instruments & procedures noticed and confirmed during response exercises. lack of coherence AND risk of operational difficulties, confusion and misunderstanding Dedicated working group launched to fix this issue. IAEA International Conference on EP & R - 19-23/10/2015

Dedicated WG : working methods & outcomes Multidisciplinary group launched in 2010 Objectives Assessment of specific risks related to nuclear/radiological emergency Comparison with missions/tasks to be fulfilled Deduction of expected appropriate protection means Working method Missions/tasks of each emergency service compiled Specific radiological situations were defined in accordance to the Belgian regulatory framework Comparison of missions/tasks and each of these situations with special consideration of required protection means (ALARA) IAEA International Conference on EP & R - 19-23/10/2015

Dedicated WG : working methods & outcomes (cont.) Listing of tables for each emergency service with status of missions/tasks and associated appropriate protection equipment Special attention to the acceptance by rescuers but also by population Need to develop operational schemes for the dosimeters identified IAEA International Conference on EP & R - 19-23/10/2015

Generic operational schemes for active dosimeters Aim: provide ALL emergency services with generic electronic dosimeters (active) together with instructions & reaction schemes (in function of ambient dose rate or cumulative dose as measured by the dosimeter) Challenges: Technical functionalities & limitations of electronic dosimeter Pre-alarm / alarm thresholds for dose rate & cumulative dose used Correlation between ambient gamma dose rate and effective dose to be evaluated (using estimated maximal intervention duration) Process: First proposals made by the WG in close collaboration with the concerned emergency services progressively tested during workshops and response exercises (2012-2014 period) IAEA International Conference on EP & R - 19-23/10/2015

Generic operational schemes for active dosimeters (cont.) Concrete results 3 types of dosimeters & schemes Pre-alarms/alarms threshold adjusted for each of them LD “Low Dose” Basic scheme WITHOUT respiratory protection HD “High Dose” Scheme WITH respiratory protection SITE (still to be developed) For intervention ON-SITE and with SUPPORT of RP-expert of the licensee RP expert IAEA International Conference on EP & R - 19-23/10/2015

Generic operational schemes for active dosimeters (cont.) LD “Low Dose” operational scheme IAEA International Conference on EP & R - 19-23/10/2015

Generic operational schemes for active dosimeters (cont.) HD “High Dose” operational scheme IAEA International Conference on EP & R - 19-23/10/2015

IAEA International Conference on EP & R - 19-23/10/2015 Perspectives First REX: initiative & approach appreciated by the concerned emergency services/intervening personnel Next steps: Consolidation of the approach through development of fact sheets and practical instructions nationwide implementation (purchase, pre-settings of pre-alarms & alarms) progressive incorporation of the approach (outcomes, results, materials…) in the certified training courses of the emergency services and intervening personnel Development of the SITE operational scheme (in collaboration with the licensees) IAEA International Conference on EP & R - 19-23/10/2015

IAEA International Conference on EP & R - 19-23/10/2015 Conclusions Lack of coherence and large diversity of equipment, instrument and procedures corrected by the development of a generic approach aiming to reach comprehensive arrangements for the protection of emergency workers Operational schemes developed to support these arrangements with generic pre-alarms & alarms thresholds (dose rate & cumulative dose) to be spread & implemented nationwide With the implementation of this holistic approach (and despite some limitation), acceptability & common understanding should be improved with expected enhancement of the global response to a nuclear or radiological emergency in Belgium. IAEA International Conference on EP & R - 19-23/10/2015

IAEA International Conference on EP & R - 19-23/10/2015 For your attention IAEA International Conference on EP & R - 19-23/10/2015