Progresses on SB facilityCENF meeting 2nd May 2013

M. Calviani, N. Baddams, A. Ferrari, F. Loprete, E. Nowak, J. Osborne, W. Kozlowska, A. Perillo-Marcone

2 CENF Technical Project meeting

Target building (755+TCC26)

update Latest updated 18th April 2013 (link) Slight reduction of the concrete shielding on top of the

iron layer (still fixed at 2.5 m) HS/pit1 building not optimized yet

Depends on the final location of the HS cooling station Ground level above the DP at ~15 m from beam pipe

i.e. ~10 meters from concrete enclosure

2 May 2013

N. Baddams (GS/SE)

3 CENF Technical Project meeting

Target building (755+TCC26)

update

2 May 2013

Slight slope for the access pit brought down the vault by ~1 m

Reduction of concrete shielding

Technical gallery from BA81 (?) – maze probably required

Swap of cooling station room and morgue

Shaping of concrete blocks to reduce streaming further reduction of

concrete thickness could be envisagedN. Baddams (GS/SE)

4 CENF Technical Project meeting

(Very) conceptal design for a geomembrane

See last CENF’s meeting for more details (link)

3 layer protections

Different contacts ongoing for some material/thickness information

The whole secondary beam infrastructure should be “protected”

2 May 2013

N. Baddams (GS/SE)

5 CENF Technical Project meeting

Target engineering – preliminary

designs Beryllium target 100 cm long, 6 (or 8) mm radius – He-cooled Baseline fully inserted inside the horn except for the uppermost

zone, with cooling inlet/outlet Be (due to high Young modulus) will allow a one-piece rod

Graphite Parallel development (design should be valid for both solution)

2 May 2013

A. Perillo-Marcone, F. Loprete, MC (EN/STI)

6 CENF Technical Project meeting

Update horn design & fluence

Last configuration shown by Alfredo (link) still the reference/baseline

2 May 2013

Outer radius of horn#2 reduced to 70 cm

In both cases ~4 m long, ~2 m apart

Under investigation is the effect of a beam plug

A. Ferrari, W. Kozlowska, MC

7 CENF Technical Project meeting

Horn#1 and #2 shape

2 May 2013

W. K

ozlo

wsk

a

8 CENF Technical Project meeting

FLUKA study margins between shielding

H*(10) with different margins between fixed and movable plug Fe blocks increasing streaming toward the service pits

2 May 2013

E. Nowak

gap

gap

Above service pit

Vault surface

Vertical profile of H*(10) above the He vessel cover

3x

6x

9 CENF Technical Project meeting

Dose rate above the DP

2 May 2013

DP diameter

concrete

~5 mSv/h

Surface (14.6 m from

beam pipe)

DP concrete / m

oraine interface

DP wall / shielding

0.1 mSv/h (up to 5 mSv/h towards the end)

E. Nowak

10 CENF Technical Project meeting

H*(10) update

2 May 2013

~5 mSv/h < 0.1 mSv/h

~1 mSv/h

Update on H*(10) around the installation with the latest CE layout Effect of muon-dominated prompt dose relevant right after the HS

Possibility to use a higher density (~3.2 g/cm3) granite

Assumed moraine density = 1.9 g/cm3

Not so conservative – no pristine ground

200 kW operation

11 CENF Technical Project meeting

Energy deposition table (update for CV)

2 May 2013

Element Energy deposited[GeV/pr]

Energy deposited[kJ/pulse] (4.5e13 POT)

Deposited power [kW] (repetition rate of 3.6s)

       Target (graphite) 1.24E+00 8.89 2.47   Horn (internal and external conductor) 1.13E+00 8.14 2.26

   Reflector (internal and external conductor) 7.01E-01 5.04 1.40

   HS – carbon core 2.03E+01 146 40.5HS – iron around the core 9.47E+00 68.2 18.9HS – aluminium (top and bottom) 1.61E+00 11.6 3.21HS – water (top and bottom pipes) 1.04E-02 0.075 2.1E-02-----HS in total------ 3.14E+01 226 62.7  Fe shielding above the target (inside the helium vessel) 6.49E+00 46.7 13.0

Fe shielding (below the chase) 2.03E+00 14.6 4.05Fe chase side shielding  (both sides equal contribution) 3.94E+00 28.37 7.9

  HS (secondary) 2.23E-01 1.60 4.5E-01     Helium (inside the chase) 1.89E-02 0.136 3.8E-02Helium (inside the Decay Pipe) 4.64E-02 0.334 9.3E-02   Fe – decay pipe wall 2.28E+01 164 45.5Fe – helium vessel wall 1.01E+01 72.4 20.1   Concrete shielding around the decay pipe 5.33E+00 38.4 10.7

Concrete shielding (the first part of the DP plus iron layer) 1.40E+00 10.1 2.8

       

Fe shielding: 25 kW water

Had. abs.: ~65 kW water

He vessel: 20 kW water

DP Fe wall: 45 kWDP concrete: 10 kW

Target : ~2.5 kW He

Horn/Refl (only beam!!): ~4 kW water

air

12 CENF Technical Project meeting

Updated power consumptions

2 May 2013

+ 20 kW service building above HS/pit1/2+100 kW general infrastructure

~690 kW ~1.1 MVATotal power needed

See James talk

13 CENF Technical Project meeting

Conclusions

Starting from next week we’ll start more detailed integration studies of the neutrino production area Tuesday afternoon 14h – fine for everybody?

DGS/RP will follow-up on the radioprotection design of the installation

2 May 2013