CENF SB WG report CENF PTM meeting 25 th July 2013 M. Calviani for the CENF SB team

Trench design 225th July 2013M. Calviani - CENF PTM meeting report of the SB WG 18 m S. Girod

Trench design 325th July 2013M. Calviani - CENF PTM meeting report of the SB WG TBI Internal shielding completed S. Girod

Integration status 4  In the pipeline:  Integration of the trench inside the CE CATIA model – input to EL/CV services integration  Modeling of the shielding to fit the available space (5 mm gap)  Complete the ducts and cables/signals that have to exit from the He-vessel  Update the support module for the TBID-like (manual operation)  Add emergency water extraction from the vessel into the recuperation pond upstream the target building 25th July 2013M. Calviani - CENF PTM meeting report of the SB WG

CE layout 5  Trench length sync’d with integration (18 m)  Potentially radioactive water recuperation pond  Evaporator part of the “industrial process”  240 cm Fe shielding  350 cm concrete shielding 25th July 2013M. Calviani - CENF PTM meeting report of the SB WG CENF E N. Baddams/L. Faisandel

6  Building size increased by 2.5 m laterally, 4 m longitudinally  Several placeholders (horn/reflector powering, ventilation units, evaporator, etc.)  Crane allowed space to be modified 25th July 2013M. Calviani - CENF PTM meeting report of the SB WG N. Baddams/L. Faisandel

725th July 2013M. Calviani - CENF PTM meeting report of the SB WG N. Baddams/L. Faisandel

Target studies 825th July 2013M. Calviani - CENF PTM meeting report of the SB WG Pipe Material Pipe Internal Diameter (mm) Pipe Thickness (mm) Target Deflection (mm) Stainless Steel (316 L) Ti-6Al-4V Beryllium A. Perillo-Marcone

Target studies + He- vessel 9  Structural stiffener needed to keep the target straight  Stainless steel or Ti pipes produces too high bending  Be pipes produces acceptable bending even for small diameter and thickness  Thin Be pipe seems to be feasible (several companies already contacted) 25th July 2013M. Calviani - CENF PTM meeting report of the SB WG A. Perillo-Marcone, M. Hora  Structural studies for the He-vessel are ongoing  Looks feasible with stabilizing bars and He-vessel thickness of 5 cm (in the assumption of vacuum needed for He-filling)

RP updates 10  FLUKA geometry is being brought inline with the CE modifications  320 cm of concrete shielding sufficient RP-wise  Design of the primary/secondary beam interface to be iterated, as it is weak point in the shielding 25th July 2013M. Calviani - CENF PTM meeting report of the SB WG C. Strabel, K. Zabrzycki, H. Vincke

Ventilation design of radiation zones 11  Interesting presentation by P. Vojtyla (link)link 25th July 2013M. Calviani - CENF PTM meeting report of the SB WG P. Vojtyla  Dynamic confinement requires extraction  Prevailing part of exposure due to short-lived radioactive gases ( 11 C, 13 N, 15 O, 14 O, 41 Ar)  Recommendations:  Only way of reducing activity is to delay before release  Aerosol filters in a continuous way (semi-closed system)  Use of evaporator & avoid condensation of water Hypothetical house – NW (250 m) Wind rose 2011 BA4

Conclusions and next steps 12  Next CENF SB meeting, 1 st August at 14h (CENF PTM slot)  Foreseen discussions  Status of integration  Update on He-vessel calculations  Discussion on the new access system (requirements, safety aspects and sectorization)  Transport and manipulation configuration (crane design, redundancy, etc.)  Update on the electrical infrastructure (load distribution, preliminary association of services with infrastructure)  Start discussions on the CV requirements (TBC)  More news on the horn/reflector powering part 25th July 2013M. Calviani - CENF PTM meeting report of the SB WG