1. Cooling pipes and Space for Services
S.Tanaka
2010/3/8

2. What we should discuss? Critical region for space allocation
Operation temperature (Cooling temperature)
Need thermal jacket on cooling pipes.
At first we should learn from Belle experience.

3. Belle vs BelleII

5. CDC 403cm2 for backward 99cm2 for forward
              radius　　Backward　　　　Forward Optical fiber　 8mm 　 100 Lemo　　　　　 3mm　 　 Power　　　　 11mm　 HVLemo　　　 3mm　　 Gas 　 15mm　　　 Air 　7mm　　　 Water 7mm　　　

6. IR region About assembling of beam mask vertical division case
The weight of beam mask will be around 10 kg for each, therefore beam pipe could not keep this (different with BELLE I). Beam masks support with SVD mechanical structure.

7. IR region 1 3 2 4

8. IR region
This space assignment is important for
services on upgrade

9. IR Service route ~500mm from IP 16*16*3.14=804cm2
PXD cabling route is independent with SVD
Readout Cable and cooling pipe are sitting between shields.

10. PXD service Cooling pipe ~7cm2 per each side from KLM to outside
PXD->DHH(or repeater box)
Kapton Flex length ~50cm
7 mm x 0.8 (?)mm(20 per side)
x-section: ~112mm²
DHH->Rack(20 per side)
Power Cables~ 30m
25 lines :X-section: 20 mm2
Total x-section 651mm²
(not fixed yet: worst estimation)
Cooling pipe
Air flow pipe
Diameter 1.2 mm (20 lines): (ID:1mm)
Cooling for modules
2.7mm (ID:2.5mm) inlet
6mm :outlet
X-section 55mm2
I/O: cables and fibres
Diameter~4mm,
20 per side
x-section 251 mm² (not fixed yet)
~7cm2 per each side
from KLM to outside

11. SVD service
Number of Cables and tubes for SVD
Forward side
Backward side
Number
Area (mm2)
Total (cm2)
Hybrid cables (near IP)
129 32
41.28
156
49.92
Hybrid cables (From KLM) 65
20.8 78
24.96
Power cables (From KLM) 25 60 15 30 18
CO2 Tubes (for Ladders R=0.6mm) 16
1.1304
0.1809 58
0.6556
CO2 Tubes (After manihold 1/4") 4
39.69
1.5876
6.3504
CO2 tubes (with heat insulator)
400 64
IP chamber water (1/4")
IP chamber paraffin (1/4") 2
0.7938
Dry air (2cmx2cm tubes)
Summary of CO2 tubes for SVD ladder and End ring
Origami
End ring
Sum L R
L6(Backward) 22 10 8
L6(Forward)
L5(Backward) 6
L5(Forward)
L4(Backward) 14
L4(Forward)
L3(Backward)
L3(Forward)
Summary: Cross section of Cables and Tubes 3 March 2010
Near IR
Forward
cm2
Backward
From KLM to outside
The table is inspected by Markus Friedl and Immanuel Gfall on 3 March 2010.
The table is preliminary and subject to change.
On IR region, The services occupy about
15%(forward),18%(backward) area between
QCS shield and CDC at minimum.

12. Another service route?

13. Summary Total cross section for services on KLM to outside is
193 (193 or 386 on backward)for B-PID
99 (403)for CDC
300() for E-PID
70 (124)for SVD
7 (7)for PXD
669 cm2 on forward region(920 cm2 for backward)
9.5(13)mm space in average on the
region between B-PID and E-PID on foward(backward)
(not consider cable tray, hook and so on.)
On IR region, The services occupy about
15%(forward),18%(backward) area between
QCS shield and CDC at minimum.
(We should consider the bending effect of cables
and pipes.)
pr2-p*1122=572cm2

14. B-PID
Belle I Barrel ACC

15. B-PID 2 Bar option on B-PID 193 cm2 in total for KLM to outside
HV cm2 x 17 x 16modules
Power cm2 x 2 x 16modules
Cooling pipe 3 cm2 x 2 x 16modules
Fiber cm2 x 7 x 16modules
RF, monitor cm2 x 8 x 16modules
193 cm2 in total for KLM to outside
(1 Bar option is worst case on backward KLM)
Services for 1 Bar option need about the half area for each side(386cm2)

16. E-PID （HV） OD 4mmx90 (Bias and guard） 60mmx2mm flat cable x30
(for 1/6 sector)
50cm2 *6=300cm2
pipe：1/4inchx4（water and Nitrogen) Cable： OD 3mm fiber x3 OD 5 Cat5 cable x 2