Quality Control tasks are indicated in red
Work Crew: t- senior technician; g- general technician or (2) students; QC- engineer or physicist
Task/sub tasks |
Work Crew |
Duration (hours) |
Manpower (manhrs) |
1) Prepare module: |
8 |
16 |
|
Secure module on assembly stand |
No |
0 |
0 |
Setup work platforms, light tent, supplies tables |
1t + 1g |
1 |
2 |
Clean module surfaces |
No |
0 |
0 |
Submodules gap shims installationFix the rails that will hold the WLS/laser fibers |
1t + 1g 1t + 1g |
3 1 |
6 2 |
Insert "aspirin" tubes |
1t + 1g |
1.5 |
3 |
Mark cell boundaries/numbers and label PMTs |
1t + 1g |
1.5 |
3 |
| 2) Install tiles: | 9 |
20 |
|
Insert tiles into slots |
1t + 1g |
7 |
14 |
QC1: Inspect tile installation |
QC |
2 |
2 |
Fix any displaced tiles or wrappers |
No |
0 |
0 |
Install clamp rods |
1t + 1g |
1 |
2 |
Install temporary source tubes (for the EBs) |
1t + 1g |
1 |
2 |
| 3) Routing preparations: | 3.5 |
7 |
|
Install routing QC devices (light source) |
No |
0 |
0 |
Install fiber separator wires |
1g 1t |
0.5 0.5 |
0.5 0.5 |
Install ITC fiber assemblies (EB) |
1g 1t |
1 1 |
1 1 |
Install the laser fiber bundles |
1t + 1g |
2 |
4 |
| 4) Insert profiles/fibers: | 19.5 |
43 |
|
Insert profiles into grooves |
1g + 1t 1g + 1t |
12 1.5 |
24 3 |
QC2: Verify fiber lengths and sorting |
QC + 1g + 1t |
4 |
12 |
Secure profiles with tape |
1t + 1g |
2 |
4 |
| 5) Route fibers: | 30.5 |
61 |
|
Make fiber sub-bundles |
1t + 1g |
5 |
10 |
Route sub- bundles to aspirin tubes |
1t + 1g |
10.5 |
21 |
QC3: Verify routing with a light source |
QC+1g |
4 |
8 |
Register and secure the fibers in the aspirin tubes |
1g + 1t |
6 |
12 |
QC4: Check registration and look for damaged fibers |
QC +1t |
3 |
6 |
Repair damaged fibers |
No |
0 |
0 |
Secure the sub-bundles along the girder |
1t + 1g |
2 |
4 |
| 6) Glue fiber bundles: | 4 |
8 |
|
Glue the fiber bundles into the tube |
1t + 1g |
4 |
8 |
Wait for the glue to cure |
48 |
0 |
|
| 7) Secure fiber bundles: | 3.5 |
3.5 |
|
Cut dummy fiber ends |
1t |
0.5 |
0.5 |
Tie fiber bundles inside the girder |
1t |
3 |
3 |
| 8) Polish the fiber ends: | 8 |
12 |
|
Setup the polishing machine in the girder |
1t + 1g |
2 |
4 |
Polish the fiber ends |
1t |
4 |
4 |
Remove the polishing machine |
1g +1t |
1 |
2 |
QC5: Inspect the fiber ends |
No |
0 |
0 |
Clean out the girder |
1g + 1t |
1 |
2 |
Total (hrs.) |
t: 86 g: 86 QC:13 |
86 |
170.5 |