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LIEBE Project review Safety work-package 25.06.2014. V.Barozier 2, AP.Bernardes 2 , J.Blaha 2 , M.Delonca 2 , A.Marchix 1 , T.Melo Mendonca 2 , T.Stora 2 , J.Vollaire 2 Cea Saclay 1 , Cern 2. Outline. Radioprotection Isotopes inventory ALARA Risk analysis Similar to a static target - PowerPoint PPT Presentation
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5th High Power Targetry Workshop
LIEBE Project review Safety work-package25.06.2014V.Barozier2, AP.Bernardes2, J.Blaha2, M.Delonca2, A.Marchix1, T.Melo Mendonca2, T.Stora2, J.Vollaire2
Cea Saclay1, Cern2
5th High Power Targetry Workshop
OutlineRadioprotectionIsotopes inventoryALARARisk analysisSimilar to a static targetSpecific LIEBEConclusion
25/06/2014LIEBE Project Meeting*
5th High Power Targetry Workshop
OutlineRadioprotectionIsotopes inventoryALARARisk analysisSimilar to a static targetSpecific LIEBEConclusion
25/06/2014LIEBE Project Meeting*
5th High Power Targetry Workshop
RadioprotectionRelease of polonium is a driving element for safety Already true for the static Pb-Bi target. Contamination is already managed at ISOLDEProduction of PoloniumDirect production via (p,xn) reactions on 209Bi-decay from 210Bi produced by neutron activation Secondary helium-induced reactions in Bi and Pb
25/06/2014LIEBE Project Meeting*
5th High Power Targetry Workshop
Isotopes InventoryAcknowledgment J.Blaha/CERN, A.Marchix/CEAMain contributor in terms of radiotoxicity (>1% of total) is defined by the LA (N.B. Authorization Limits take into account the radiotoxicology of the given nuclide, Ref:ORaP*) 1 LA 5mSv dose due to inhalation exposure
5th High Power Targetry Workshop
Isotopes InventoryAcknowledgment J.Blaha/CERN, A.Marchix/CEAAfter 1 year25/06/2014LIEBE Project Meeting*
5th High Power Targetry Workshop
Validation of simulation with irradiated Pb-Bi samples on ISOLDE proton beamAcknowledgment J.Blaha/CERN, A.Marchix/CEA, M Melo Delonca/CERN, S.Lahiri/SINPIsotopes InventoryFLUKA (CERN) and MCNPX INCL4.6 ABLA07Isotopes inventoryPb-Bi samples irradiation and comparison with simulation for validation of activities inventory25/06/2014LIEBE Project Meeting*
5th High Power Targetry Workshop
Ratio between calculated and measured activities (calculation with INCL4.6-ABLA07/CINDER)Acknowledgment A.Marchix/CEA, M Melo Delonca/CERN, S.Lahiri/SINPIsotopes InventoryWithin factor 3 between measured and calculated activity Large discrepancies for nuclides closed to 1 Bq activity25/06/2014LIEBE Project Meeting*
5th High Power Targetry Workshop
OutlineRadioprotectionIsotopes inventoryALARARisk analysisSimilar to a static targetSpecific LIEBEConclusion
25/06/2014LIEBE Project Meeting*
5th High Power Targetry Workshop
Dose rate for the Pb388 target at 2m30 from the target 1E18 protons Acknowledgment A.DorsivalALARADecay time start-up 10mSv/h. Storage of the target
Factor 2 After 1 day decay25/06/2014LIEBE Project Meeting*
5th High Power Targetry Workshop
New fast connectors are needed
Modification is needed on irradiated Front-end to avoid to send people to disconnect the target after irradiation
Cooling system and pump as well
Acknowledgment T.Melo Mendonca and V.Barozier/CERNALARA25/06/2014LIEBE Project Meeting*
5th High Power Targetry Workshop
OutlineRadioprotectionIsotopes inventoryALARARisk analysisSimilar to a static targetSpecific LIEBEConclusion
25/06/2014LIEBE Project Meeting*
5th High Power Targetry Workshop
Risk analysis Similar to a static targetInstantaneous power: 1 GWBeam window container rupture of a Pb static target due to beam impact Shock wave due to beam on Pb-Bi may induce dramatic failures of the loop 25/06/2014LIEBE Project Meeting*
5th High Power Targetry Workshop
Risk analysis Similar to a static targetPreventing shock wave due to beam on Pb-BiPrevention:ANSYS calculation to be finished to demonstrate no failure on beam window or grids
Safety barriersVessel is enclosing the full Pb-Bi loop including the filling tank and acts as double envelopeLeak detection
25/06/2014LIEBE Project Meeting*
5th High Power Targetry Workshop
Risk analysis Similar to a static targetTransfer of Pb-Bi liquid to the FE25/06/2014
5th High Power Targetry Workshop
Risk analysis Similar to a static targetWater leak inside targetTarget base cool down with water25/06/2014LIEBE Project Meeting*
5th High Power Targetry Workshop
OutlineRadioprotectionIsotopes inventoryALARARisk analysisSimilar to a static targetSpecific LIEBEConclusion
25/06/2014LIEBE Project Meeting*
5th High Power Targetry Workshop
Risk analysis Specific to LIEBE targetWater leak heat exchanger25/06/2014LIEBE Project Meeting*
5th High Power Targetry Workshop
Risk analysis Specific to LIEBE targetSolidification of Pb-Bi (cold point or oxides)25/06/2014LIEBE Project Meeting*
5th High Power Targetry Workshop
Risk analysis Specific to LIEBE targetTarget Handling25/06/2014LIEBE Project Meeting*
5th High Power Targetry Workshop
OutlineRadioprotectionIsotopes inventoryALARARisk analysisSimilar to a static targetSpecific LIEBEConclusion
25/06/2014LIEBE Project Meeting*
5th High Power Targetry Workshop
ConclusionIsotopes inventory done
ALARA principle to be developed and tested
Preliminary Failures analysis and input on design done.
Failure analysis to be updated with tests on loop
25/06/2014LIEBE Project Meeting*
5th High Power Targetry Workshop
AcknowledgementsCEA: A.MarchixCERN: V.Barozier, J.Blaha, M.Delonca, T.Melo Mendonca, T.Stora, J.VollaireIPUL: K.Kravalis, R.NikoluskinsPSI: D.SchumannSCK.CEN: D.Houngbo, L.Popescu, P.SchuurmansSINP: S.Lahiri
25/06/2014LIEBE Project Meeting*
5th High Power Targetry Workshop