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11 IPNO, 20.01.2011 ActILab kick-off meeting – Contribution CERN ActILab kick-off meeting CERN Contribution Alexander Gottberg.

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Presentation on theme: "11 IPNO, 20.01.2011 ActILab kick-off meeting – Contribution CERN ActILab kick-off meeting CERN Contribution Alexander Gottberg."— Presentation transcript:

1 11 IPNO, 20.01.2011 ActILab kick-off meeting – Contribution CERN ActILab kick-off meeting CERN Contribution Alexander Gottberg

2 2 IPNO, 20.01.2011 ActILab kick-off meeting – Contribution CERN Target Layout protons

3 3 IPNO, 20.01.2011 ActILab kick-off meeting – Contribution CERN Overview of Tasks Task 1: Synthesis of new actinide targets (CERN, INFN, IPNO) Subtask 1: Sol-gel synthesis in complex fluids (“Chimie douce”) Subtask 2: Nanostructures Task 2: Characterization of actinide targets (CERN, INFN) Subtask 1: Microstructure, porosity, specific surface, crystalline phase Subtask 2: Emissivity, thermal conductivity at high temperature Task 3: Actinide targets properties after irradiation (CERN, PSI) Subtask 1: Post-irradiation examination of target prototypes Task 4: Online tests of actinide targets (CERN, GANIL, IPNO) Subtask 1: Impact of pulse time structure on release and ageing properties Subtask 2: Analysis of the results-effusion and diffusion phenomena Cern provides infrastructure for pre-irradation analysis of micro and nano structures, for thermal conductivity and emissivity measurements.

4 4 IPNO, 20.01.2011 ActILab kick-off meeting – Contribution CERN Characterization UCx at ISOLDE  bulk= 3.5 g/cm 3 How to do release modeling from this material ? L. Biasetto et al.

5 5 IPNO, 20.01.2011 ActILab kick-off meeting – Contribution CERN Nominal Density UC Target at CERN Importation from Russia of HD-UC pellets to CERN : Set 1: 100 pills UC (U5:0.38%), 13.2mm diam., 1mm thick, 12.3g/cm 3, avg. grain 10  m, UC2<4% Set 2: 300 pills UC (U5:0.38%), 13.2mm diam., 1mm thick, 12.7g/cm 3, avg. grain 6  m, UC2<4%

6 6 IPNO, 20.01.2011 ActILab kick-off meeting – Contribution CERN Synthesis Task 1: Synthesis of new actinide targets (CERN, INFN, IPNO) Subtask 1: Sol-gel synthesis in complex fluids (“Chimie douce”) Subtask 2: Nanostructures Contribution in one of the subtasks Cern provides class A laboratories Aim: purposive synthesis of nanostructured UCx materials Material exchange between institutes? (Task 1, 2, and 3)

7 7 IPNO, 20.01.2011 ActILab kick-off meeting – Contribution CERN Post-Irradiation Studies Task 3: Actinide targets properties after irradiation (CERN, PSI) Subtask 1: Post-irradiation examination of target prototypes Shipment of material to PSI (hot cell) after irradition In the framework of CERN target development: Micro-EXAFS studies at SLS before and after irradiation -> information about chemical structure in the µm regime

8 8 IPNO, 20.01.2011 ActILab kick-off meeting – Contribution CERN Studies of Microstructure Sandrina Fernandez, PhD thesis

9 9 IPNO, 20.01.2011 ActILab kick-off meeting – Contribution CERN Online Tests Task 4: Online tests of actinide targets (CERN, GANIL, IPNO) Subtask 1: Impact of pulse time structure on release and ageing properties Subtask 2: Analysis of the results-effusion and diffusion phenomena CERN provides: large range of isotopeswell definied and variable pulsed beam structure ~70 elements > 800 nuclides M. Turrion → Series in one column of the periodic table → Systematic investigation of release mechanisms  t = 572ns → Short release time characteristics (µs) for exotic nuclei → Influence on ageing

10 10 IPNO, 20.01.2011 ActILab kick-off meeting – Contribution CERN Online Test Preparation of online tests: Shutdown for one year at CERN in 2012 or 2013, announced in June 2011 –> online tests of new target materials have to be scheduled accordingly Beamtime application to INTC

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