Progresses on SB facilityCENF meeting 16th May 2013

M. Calviani for the CENF SB team

2 M. Calviani - CENF PTM

Target hall (TCC26 + 755)

16 May 2013

Technical gallery:- BA81 should be- Primary cooling

circuit, EN/EL, etc.

Earth

groun

d

aroun

d not

needed

!

Service pit

Target vaultVentilation area 1

Ventilation area 2

Access ramp- Max slope

acceptable for transport assumed ~7%

- Max length ~25 m

~2.5 meters Dh

1st CENF SB study group meeting (http://indico.cern.ch/categoryDisplay.py?categId=4708)

3 M. Calviani - CENF PTM

Integration updates

16 May 2013

Alignment strategy – two solution under study: Support target/horn/reflector (THR) from the top – allow

active alignment feedback as motors are away from the hot area (preferred)

THR placed on the bottom of the trench – easier but difficult to imagine active feedback

S. Girod

4 M. Calviani - CENF PTM

Integration updates

Guidelines: Avoid penetration of He-vessel in inaccessible places (bottom

of trench) Striplines, water, electrical signal with a dedicated lateral

flange on top of the Fe shielding Target/horn coupled and common alignment to be foreseen

16 May 2013

With S. Girod we started to tackle these items in priority as the most critical aspect at this stage

Evaluate the number of penetrations through the vessel needed

5 M. Calviani - CENF PTM

Integration updates

If support/alignment is based on lateral Fe blocks mandatory to maintain constant temperature

TAX-like cooling with independent cooling circuit ~50 kW to dissipate

Precise machining of surfaces for good thermal contact will be mandatory 16 May 2013

6 M. Calviani - CENF PTM

Target/horn integration

Target engineering and integration inside the horn must be a high priority

We should cross-check the clearances we are presently considering for between target external body and horn inner conductor CC fibre (baseline) + Be (backup solution)

Action EN/STI – EN/MEF to be started

16 May 2013

12 mm target Ø – 6 mm clearance

7 M. Calviani - CENF PTM

Radioprotection guidelines and priorities

Shielding thicknesses assessment for target/DP is well defined

16 May 2013

Priorities: Clarification of

concrete top shielding (to minimize it)

Shielding/configuration for the primary/SB interface

Air activation studies to address air recycling and flush (input for CV)

8 M. Calviani - CENF PTM

Radioprotection guidelines and priorities

Double-walled pipes for primary circuits Use of dry air for ventilation system –

installation of air dehumidifier to reduce corrosion For the ventilation area 2 (service pits)

Prepare for decommissioning and dismantling already now

Release of 3H in the He seems to be ok – foresee evaporator already in the design and part of the installation

Lowest pressure in the area with highest radiological risks

16 May 2013

H. Vinckehttp://indico.cern.ch/getFile.py/access?contribId=3&resId=0&materialId=slides&confId=251173

9 M. Calviani - CENF PTM

Horn/Reflector converters/transformer

Under investigation to reuse part of the CNGS powering equipment for horn and reflector Part of these have been already recuperated from WANF or

WANF-design! Discussion on-going to check what could be recuperated or

not New capacitor bank in storage PC design depends on the inductance and geometry of

horn/reflector and strip line lengths Action with TE/EPC and EN/MEF

16 May 2013

~14x10 m2 needed for power converter and capacitor banks (surface)

Transformer could be in the service rooms with ~10 m of striplines

10 M. Calviani - CENF PTM

Target building crane

Cranes foreseen for b. 755: Main 40 ton crane for shielding and THR movement (lifting

height is 20 m) Auxiliary 5 ton hoist (18.4 m lifting height)

Under discussion the movement and lifting height News this afternoon possible to 26.1 m still maintaining full

vertical movement (but bigger external size)

16 May 2013

K. KershawTotal distance from the bottom of the crane until the bottom of the service rooms is 22.5 m

11 M. Calviani - CENF PTM

C&V update Recently started iteration studies with EN/CV (M.

Battistin –PJ): Important input for integration studies

Under discussion the cooling system for horn/reflector: How to control the level in the reservoir located below the

focusing system – risk of breaking the inner conductor 70 kW evacuation in the DP with forced air

convection seems to be feasible Location of secondary circuit in the service room ok HS cooling & ventilation station for pit1 could be

located on top of the building (more studies needed)

16 May 2013

12 M. Calviani - CENF PTM

C&V update

Primary loop either in the BA81 extension or in a dedicated technical building (reuse cooling towers b. 893)

Possibility to foresee a double-walled HX to avoid potential contamination of the primary loop to BA81

16 May 2013

BA81 extension

755

13 M. Calviani - CENF PTM

C&V update

Detailed information now needed for EN/CV to make a more refinement evaluation of costs/space/requirements

Water circuits: Power to dissipate, water quality, DT, pressure,

redundancy, etc. Air/ventilation:

Power to dissipate (thermal charge), temperature, humidity, recirculation, flush, Dp control, redundancy

16 May 2013

Topics will be treated in the SB WG (~bi-weekly)

14 M. Calviani - CENF PTM

Geomembrane – water retention

Contacts with SIKA Suisse established

Technical material/datasheets available

Proposed solution is feasible more detailed studies

in the tendering phase, especially for the drain/sumps

16 May 2013

15 M. Calviani - CENF PTM

Conclusions

Integration and technical design aspects of the SB line are on-going

The WG will tackle the most urgent items and move forward with a TDR in mind

16 May 2013