Sébastien Bousson (CNRS-IN2P3-IPN Orsay) TIARA PP TIARA PREPARATORY BOARD 2nd November 2009 - CERN TIARA-PP WP 10 « EURISOL » Sébastien Bousson (CNRS-IN2P3-IPN Orsay)

The multi-MW target complex WP 10 Framework EURISOL is the next generation of a facility aiming at the production of radioactive ion beams (RIB) using the ISOL technique. A Design Study within FP6 has just finished, and 2 key components will require an important R&D program and intense experimental tests to fulfill the Eurisol requirements The multi-MW target complex The low beta superconducting (SC) cavities (for driver and post-accelerator) The objective of this WP is to coordinate the definition and the design of two test benches: an irradiation test facility for the high power target developments and a cryogenic test cryostat for testing fully equipped low beta superconducting cavities. Important synergies of these equipments with other projects : ESS, ADS (EUROTRANS, MYRRHA)…

All these research items will require experimental studies. WP 10.1 : Irradiation test facilities for MMW target development Full scale test of the MMW target available only in the final facility ! Achieving the design of the full scale target for Eurisol will require several partial tests: sub-components, irradiation at lower power, instrumentation tests… N° Research Items Application 1 Test coaxial guided stream (CGS) Window cooling with laser heating Performance 2 Test windowless transverse film (WTF) stability with high speed camera 3 Sub-scale Target irradiation 4 Ultra-sound sensors Instrumentation 5 Pressure sensor capillaries 6 Heat Transfer Coefficient (HTC) method improvements with laser 7 Primary/Secondary fluid interaction study Safety 8 Investigation of the pressure wave from a pulse Science 9 Investigation of on-line isotopic separation 10 Fatigue under Liquid Metal (LM) corrosion and irradiation study 11 Influence of wall conditions on LM Heat transfer 12 Long-duration test facility Engineering 13 Dedicated LM Component development All these research items will require experimental studies.

WP 10.1 : Irradiation test facilities for MMW target development Work breakdown: Task 10.1.1 : Identification of the necessary irradiation test facilities, definition of their specifications and possible locations Task 10.1.2 : Design study of the irradiation test facilities, as they will be defined in the previous task Milestones Num Nat[1] Short name Description month M10.1.1 R Report on the definition of the required test facilities and possible locations 12 M10.1.2 For each defined facility, technical design report of the irradiation test facility 36 Deliverables Num Nat[1] Short name Description month D10.1 R Design of the test irradiation facilities 36

WP 10.2 : Designing a low beta cavity test cryostat Before assessing that a SC cavity is validated for an operational use in an accelerator, the final experiment is a cryogenic test at nominal RF power of the fully equipped cavity (power couplers, cold tuning systems…) Very few “accelerator configuration” test cryostat are existing in Europe and they are designed for elliptical cavity testing. Such a cryostat, specific and devoted to low beta SC cavities will be a useful complementary equipment.

The Eurisol Facility Layout Driver RIB production Beam preparation Post-Accelerator

WP 10.2 : Designing a low beta cavity test cryostat Work breakdown: Task 10.2.1 : Identification of the users requirements for the cavities and all their ancillary systems Task 10.2.2 : Design of the vacuum vessel including magnetic and thermal shields, design of the cavity supporting system. Task 10.2.3 : Design of the cryogenic cold box to supply the vacuum vessel with the different cryogenic fluids. Milestones Num Nat[1] Description month M10.2.1 R Preliminary design and operation mode of the test cryostat 15 M10.2.2 Technical Design Report of the test cryostat 32 Deliverables Num Nat[1] Description month D10.2 R Complete design of the test cryostat 32

WP 10 Partners (person.month figures are still preliminary) WP 10 : Partners & cost WP 10 Partners (person.month figures are still preliminary) WP number 10 Start month 1 End month 36 WP Title Eurisol test infrastructures Activity Type RTD Objective Design study of Eurisol R&D test benches for high power target and low beta superconducting cavities Participant number 2 3 8 CERN CNRS PSI ESS-S (Lünd) Person-months 15 32 12 WP 10 Associates: IPUL Salaspils (LV) : Liquid metal loop technology FZK Karlsruhe (Ge) : Corosion tests (KALA loop) WP 10 Costs (estimate): Total : 700 k€ EU request : ~ 350 k€