ATLAS SCT BARREL Readout Fibre Routing (one end) from Barrel to PPB1
for one OCTANT

TJF 05.06.01 updated 11.06.01


BARREL Harnesses single tubed fibres single tubed fibres splicesribbons
number total in 12 set in 6 set total12 way : 6 way
344824 8 4 : 4
45603010 5 : 5
56723612 6 : 6
67844214 7 : 7

BARRELcirc. duct
start/finish
circ. duct circ. ductduct to thermal encl. duct to thermal encl.duct to thermal encl.duct outside therm encl.duct outside therm encl.duct outside therm encl.
numbersingle tubed fibre
12 set: 6 set
total
splices
ribbons
12 w: 6 w
past splices
single tubed fibre
12 set: 6 set
total
splices
ribbons
12 w:6 w
past splices
single tubed fibre
12 set:6 set
total
splices
ribbons
12 w:6 w
past splices
348 : 24
48 : 24
0048 : 24
total 72
8
B5 flange
4 : 40 : 004 : 4
460 : 30
48 : 24
21 : 1 48 : 24
total 72
8
B6 flange
5 : 50 : 0 0 5 : 5
572 : 36
48 : 24
4 2 : 248 : 24
total 72
0 2 : 2 48 : 24
total 72
86 : 6
684 : 42
48 : 24
63 : 348 : 24
total 72
0 3 : 348 : 24
total 72
8 7 : 7
all--- 192 : 96
total 288
16 14 : 1496 : 48
total 144
16 22 : 22

Through thermal
enclosure
single tubed
fibre
12 set: 6 set
splicesribbons
12 w: 6 w
past splices
form of seal
-96 : 48
total 144
0 14:14grommet with sealant

dimensionssingle tubed
fibre
12 way splice6 way splice12 way ribbon 6 way ribbon
- 0.9mm
outside diameter
40mm long
x 4.8mm wide
x 3.8 mm thick
40mm long
x 4.8mm wide
x 3.8mm thick
3.1mm wide
x 0.31mm thick
1.6mm wide approx
x 0.31 thick


Note that the splice is covered with heat-shrink sleeving - outside dimensions of this are given.
Note also that the single-fibre furcation tubing must end at least 80mm before any splice. The dimensions of any sleeving used to protect this bare fibre are not yet known. Fibres going through the thermal enclosure will not be in this form - unless a suitably robust type of sleeving is found.