US Optical Instrumentation Tasks

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:

 

11

15

Secure module on assembly stand

1t + 1g

1

2

Setup work platforms, light tent, supplies tables

2g

1

2

QC0: Module Inspection

QC

1

1

Clean module surfaces

1g

2

2

Fix the rails that will hold the WLS/laser fibers

1g

2

2

Insert "aspirin" tubes

1g

2

2

Mark cell boundaries/numbers and label PMTs

1t + 1g

2

4

 

 

 

 

2) Install tiles:

 

11-15

21-25

Insert tiles into slots

1t + 1g

8

16

QC1: Inspect tile installation

QC

1

1

Fix any displaced tiles or wrappers

1g

0-4

0-4

Install clamp rods

1t + 1g

1

2

Install temporary source tubes (for the EBs)

1t + 1g

1

2

 

 

 

 

3) Routing preparations:

 

3

7

Install routing QC devices (light source)

1t

1

1

Install fiber separator wires

1g

1

1

Install ITC fiber assemblies (EB)

1g

1

1

Install the laser fiber bundles

1t + 1g

2

4

 

 

 

 

4) Insert profiles/fibers:

 

29

58

Insert profiles into slots and sort fibers into depth segments

2g

22

44

QC2: Verify fiber lengths and sorting

QC+ 1g

4

8

Secure profiles with tape

1t + 1g

3

6

 

 

 

 

5) Route fibers:

 

51-57

102-114

Make fiber sub-bundles

1t + 1g

6

12

Route sub- bundles to aspirin tubes

2g

18

36

QC3: Verify routing with a light source

QC+1g

6

12

Register and secure the fibers in the aspirin tubes

2g

12

24

QC4: Check registration and look for damaged fibers

QC + 1t

3

6

Repair damaged fibers

1t + 1g

0-6

0-12

Secure the sub-bundles along the girder

2g

6

12

 

 

 

 

6) Glue fiber bundles:

 

6-54

12

Glue the fiber bundles into the tube

1t + 1g

6

12

Wait for the glue to cure

 

48

0

 

 

 

 

7) Secure fiber bundles:

 

3

5

Cut dummy fiber ends

1g

1

1

Tie fiber bundles inside the girder

1t + 1g

2

4

 

 

 

 

8) Polish the fiber ends:

 

13

15

Setup the polishing machine in the girder

1t + 1g

2

4

Polish the fiber ends

1t

6

6

Remove the polishing machine

1g

2

2

QC5: Inspect the fiber ends

QC

2

2

Clean out the girder

1g

1

1

 

 

 

 

9) Insert and glue source tubes:

NA

Barrel

Only

Insert straight tube sections 

 

 

 

Insert and glue curved tube sections

 

 

 

 

 

 

 

10) Close up the module:

 

7

11

Remove the fiber separator wires and trays

1g

1

1

Remove temporary labels

1g

1

1

Cover the module with Aluminum sheet

1t + 1g

4

8

Attach girder end plates

1g

1

1

 

 

 

 

11) Cleanup

 

3

5

Remove assembly fixtures and tables

2g

2

4

Remove empty boxes and tools

1g

1

1

 

 

 

 

12) Quantitative test and certification:

 

15

20

Install drawers and cabeling

QC+1g

1

2

Install source system

QC + 1g

2

4

QC6: Quantitative test of module

QC

10

10

Remove drawers and cabeling

QC+1g

1

2

Remove source system

QC + 1g

1

2

 

 

 

 

13) Management

 

0

45

Materials and supplies

1t

 

10

Scheduals and training

1t

 

20

Record keeping

1t

 

10

QC documentation

QC

 

5

 

 

 

 

Total (hrs.)

t: 87-93

g:191-201

QC:38

152-210

316-332

 

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maintained by: - RJM