EURISOL DS PROJECT T2: MULTI-MW TARGET DESIGN

Y. Kadi On behalf of T2 European Organization for Nuclear Research, CERN CH-1211 Geneva 23, SWITZERLAND [email protected]

1 EURISOL-DS T2-03, CEA-Saclay

27-28 October, 2005

TASK #2 – Multi-MW Target Main goals for the first 12-15 months • Provide a first technical design of the liquid Hg proton-toneutron converter (input to tasks 4 and 5) • Provide a status report on optimum method for continuous extraction of radioisotopes • Provide a preliminary engineering design and cost evaluation of the liquid Hg test loop • Initiate technical study on the integration of the entire target station

2 EURISOL-DS T2-03, CEA-Saclay

27-28 October, 2005

TASK #2 – Multi-MW Target Review of the activity over the last 9 months • Modelling of the target reference design (CERN) and nuclear characterisation using FLUKA • CFD and FEM analysis (PSI) • Information Exchange on Isotope Extraction Methods from Hg (PSI). • Investigation and choice of the most suitable materials for the Hg experimental loop and services (IPUL). • 2 information exchange meetings together with Tasks 3 and 4 3 EURISOL-DS T2-03, CEA-Saclay

27-28 October, 2005

TASK #2 – Multi-MW Target Achievements • Engineering Study of the liquid metal converter: 1. Sensitivity study has been performed with respect to the particle type (proton vs deuteron), beam energy (1, 2 and 3 GeV) and beam profile (parabolic vs Gaussian vs σ)  reference parameters 2. Preliminary conceptual design of the MMW Hg converter and nearby structures (target vessel, fission target, BeO target, reflector, etc…) proposed 3. First estimates of the energy deposition, n-flux distribution and spallation product yields in the Hg target have been obtained together with an evaluation of the radiation damage to the target vessel ==> CFD and FEM analysis being carried out by PSI and dimensioning the Hg experimental loop by IPUL.

4. Fission product yields have been calculated for several UC target composition at different locations around the Hg converter 5. 6He production from dummy BeO target. 6. Comparison with Hg jet option 4 EURISOL-DS T2-03, CEA-Saclay

27-28 October, 2005

Baseline parameters of the MMW Hg target Parameter Converter Target material Secondary Target material Beam particles Beam particle energy

Symbol Units Zconv Ztarg Zbeam Ebeam GeV

Nval Hg (liquid) UCx, BeO Proton 1

Range LBE

Beam current Beam time structure

Ibeam -

mA -

4 dc

Gaussian beam geometry

mm

15

Beam power

"beam Pbeam

!2 2–5 ac 50Hz 1ms pulse ! 25, parabolic

MW

4

!5

Converter length

lconv

cm

45

Converter radius (cylinder) Hg temperature Hg flow rate Hg speed Hg pressure drop

rconv Tconv Qconv Vconv #P1

cm ºC ton/s m/s bar

15 150 (tbc) 1 (tbc) 5 (tbc) tbc

! 85 8 – 20