MODULE :ANL-15

@MSU
ATLAS TILECAL 

OPTICS INSTRUMENTATION  CHECK LIST
Cover Sheet
REF
REV: 2.2 June 16, '00
TASK
DESCRIPTION
QC Page
1
 MODULE PREPARATION
2
2
 TILES INSTALLATION
3
3
 ROUTING PREPARATION
 
4
 PROFILES AND FIBRES INSTALLATION
4
5
 FIBRES ROUTING
5
6
 FIBRES BUNDLES GLUING
6
7
 POLISHING AND CUTTING
 
8
 SECURE FIBRES BUNDLES
7
9
 QC6 SCAN
 
10
 CLOSEUP
 
NOTES
Work crew should initial each task that they work on.

Supervisor should indicate the date as each task is completed.

QC person should fill in the report for each QC task. The QC tasks must be completed before subsequent tasks are started.

Work crew shold fill in the materials list for all items used.

Note any problems, deviations from procedures, suggestions, etc. in the space at the bottom and on the reverse side of pages. 


 
1. Module Preparation
Task
Description
Date 
Work Crew 
1.1
Setup Module 
8-22-00
MN,RW,TB,DD
1.2
QC0:
Initial Inspection 
8-22
RJM
Item
OK
Not OK : List problems and repairs
Residual Glue
X
Spring Pins
X
Plate/Weld Bar Edges
X
Submodule Shims and Spacing
X
Pained Surfaces
X
Slot Widths
X
Contaminants
X
Task
Description
Date 
Work Crew 
1.3
Clean out Slots
8-22
TB,RW,DD
1.4
Clean out Source Holes
8-22
DD
1.5
Cover Holes in Girder
8-22
RW
1.6
Clean Module Surfaces
8-22
TB
1.7
Mark Cell Boundaries 
8-23
RW,TB,AR
1.8
Install Cell & PMT Labels
8-22
RW

NOTES:


 
2. Tile Installation
Task
Description
Date
Work Crew 
2.1
Measure gaps for shims
?
2.2
Install Shims
?
2.3
Record Tile Pak Numbers
?
TB,RW
2.4
Insert Tiles
?-9/17
RW
2.5
Insert Special ITC Tiles
?
2.4
QC1:
Tile Inspection 
9-19
RJM
Item
OK
Not OK : List problems and repairs
Tile Color
X
See note
Tile Sizes
X
Tile End Surfaces
X
Tile Wrappers
X
Task
Description
Date
Work Crew 
2.5
Install Rods
    

NOTES:

2.4 We got the remaining batch 1 'good' tiles from ANL to instrument this module. Not enough were left in all layers to do D6. Cell D6 has tiles from batch 3 (blue), all other cells have batch 1 tiles (yellow).
 


 
3. Fiber Preparations
Task
Description
Date
Work Crew 
3.1
Install LED Light Tubes 
10-23
RJM
3.2
Label Bottom of Aspirin Tubes
8-22
TB
3.3
Install Aspirin Tubes and Washers 
8-22
TB,RW
3.4
Install Fixation Rails
8-22
DD
3.5
Label Laser Fiber Bundles
8-28
TB
3.6
Install Laser Fiber Bundles 
8-28
TB
3.7
Record Laser Fiber #
8-28
TB
3.8
Cover Girder Area
?
3.9
Install ITC Fiber Supports
?

NOTES:
 


 
4. Fiber/Profile Installation
Task
Description
Date
Work Crew 
4.1
Setup Profile Cart
9-27
RW, AR
4.2
Record Profile Batch Numbers
?
4.3
Insert Profiles/WLS Fibers
10-2
RW,AR,DK
4.4
Install Fiber Separator Wires 
?
4.5
Install ITC Fibers
?
4.6
Record ITC Fiber #
?
4.7
Separate fibers by depth
?
4.8
Make subbundles
?
4.9
QC2: Verify Sorting 
10-23
RJM
Item
OK
Not OK : List problems and repairs
Fiber Lengths
X
Fiber Counts
X
Depth Sorting
X
Visual Light Levels
X
4.8
Remove Fiber SeparatorWires
?

NOTES:
 
 
 
5. Fiber Routing
Task
Description
Date 
Work Crew 
5.1
Route Sub-bundles To Aspirin Tubes
10-25
RW
5.2
Route the Laser Fibers
10-25
RW
5.3
QC3:
Verify Fiber Routing 
10-26
RJM
Item
OK
Not OK : List problems and repairs
Odd Side Cells
  
SEE NOTES
Even Side Cells
  
SEE NOTES
5.4
Insert Gluing tubes
?
RW, DK
5.5
Insert Teflon Rods
?
RW, DK
5.6
Register and Secure Fibers in Aspirin Tubes
?
RW, DK
5.7
Insert Dummy fibers
?
RW, DK
5.8
QC4: Check Fiber Damage 
11-9
RJM
Item
OK
Not OK : List problems and repairs
Broken fibers
X
  
Stress Crazing
X
  
Cladding Damage
  
See notes on QC sheet and below
Fiber Curvature
X
  
Fiber Contact
X
  
5.9
Secure the Sub-bundles
?
  

NOTES:

5.3 Starting with this module we have changed the routing to be similar to the ANL routing. The major difference is that the D fibers are now on top of the other fibers so that they are constrained by those fibers at the ends of the profiles. This prevents them from coming in contact with the ends of the master plates. The other consequence is that they are no longer under the other fiber bundles where they go into the aspirin tubes and have nothing but the belt to hold them into the girder envelope.

a) PMT 38R bundle should be under the L bundle to PMT 34 - redone by RJM.

b) The bundles on the odd side were all tied to the rail prematurely. I untie them until after gluing.

c) Laser input fiber on the even side was not routed to the far end.

5.8  Many of the fiber in the D cells have patches about 1 cm long that 'sparkle' when illuminated with the LED light tube.  This is assumed to be small light leaks that may be due to scratches or some other defect in the cladding.  The sparkle is only visible in a narrow angle range.  These are in random locations on the fibers and do not appear to be the kind of damage that would occur during profile installation or fiber routing.  We do not have sufficient spare profiles to replace them and in any case, I don't think we could find all of them.  I decided to leave them and see if there was any indication of poorer response in the QC6 scan.  (There was none.)
 


 
6. Glue fiber bundles
Task
Description
Date 
Work Crew 
6.1
Prepare Glue Cartridges
 11-10
RJM 
6.2
Glue Odd Side 
 11-10
RJM, RR 
6.3
Glue Even Side
  11-10  RJM, RR
6.4
Reserve Samples of Epoxy
  11-10  RJM, RR
6.5
Epoxy Cure
  OK  RJM
6.6
Remove Cable Ties from Silicon Tubes
  11-13  RJM


 

 

7. Polish Fiber Ends
Task
Description
Date 
Work Crew 
7.1
Setup the Polishing Machine
  11-14 RJM, RW 
7.2
Polish Fibers, Odd Side
  11-14  RW
7.3
Polish Fibers, Even Side
  11-14  RW
7.4
Remove Polishing Machine
  11-14  RW
7.5
QC5: Inspect Fiber Ends 
  11-16  RJM
Item
OK
Not OK : List problems and repairs
Surface Quality
  x  some chips in surface
Visual Light Level
  x  around the Teflon rods

NOTES:
 
 
 
8. Secure fiber bundles
Task
Description
Date
Work Crew
8.1
Cut dummy fibers 
  11-13  RJM
8.2
Cut Gluing tubes
  11-13  RJM
8.2
Tie FiberBundles to Rails
  11-17  RJM
8.3
Install Cotton Belt
  11-17  RJM
8.4        Install Al Tape                    11-27                    RJM


 
10. Close up
Task
Description
Date 
Work Crew
10.1
Cover Module with Plastic Sheet
  11-17 RJM 
10.2
Cover Girder Ends
  11-30 RJM 
10.3
Install Plastic Source Tubes
  11-30 RJM,RW 
10.4
Cover Source holes
  11-30  RJM
10.5
Tape ITC Fiber Support Panels
  11-17  RJM
10.6
Install Shipping Cover 
  11-30  RW, ANDY

NOTES:
8.2  Some misrouting of the laser fibers was found at this stage.  The laser fiber to PMT44 was under the PMT 42 bundle while the WLS fiber bundle was on top.  This prevents the silicon tube from being used to tie the bundle to the rail.  The laser fiber to PMT10 was through the middle of the fiber bundle to PMT14.  The input laser fiber on the even side had not been routed to the far end.
The laser fiber connector on the odd side should be moved to a position between PMTs 5-7 to reduce the stress on the bundle.
8.4  A new type of belt is being used starting with this module.  We are drilling and tapping screw holes in the end of the grider to mount the belt.  The new belt is Nylon, with eyes installed at the ends for mounting.  The belt has two sections, connected with a buckle so that the tension is adjustable.  It is fed through 4 belt loops made of plastic angles that are glued to the girder.  The belt were mounted before the first QC6 scan.
 
 

Shimming Data Sheet



 
 
 
 
 
   
Measured Widths

(mm)
Shims Required
Gap #
Tile 
Oddside
Even side
1/2
3/4
1
1 1 4.4 4.4
2 1 5.2 5.2 1
3 1 4.6 4.8 1
4 1 4.6 4.6 1
5 1 5.0 4.8 1
6 1 4.4 4.2
7 1 5.2 5.0 1
8 1 4.4 4.4
9 1 4.2 4.0
Total 1
1 11 4.2 4.0
2 11 4.6 4.0
3 11 4.1 4.2
4 11 4.3 4.2
5 11 4.2 4.0
6 11 4.3 4.0
7 11 4.6 4.3
8 11 4.2 4.2
9 11 4.4 4.2
Total  11

NOTES: 1. Measure Tile Slot 1 at the bottom of the slot and Tile Slot 11 at the top

(where the widths are assumed to be minimum)

    1. Required shims make the minimum slot width in the range 4:4.5 mm
    2. Gaps are numbered starting at the non ITC end.
Materials List


Tile Size
Color
Pkg. # (no of tiles) in order from ITC end
1
 Y 122,124,137,25,17,18,25
2
 Y 14,321,330,371,328,290,417,388(2)
3
 Y 79,210,207,206(2),86,131(7),87,206(7),88
4
 Y 38,34,30,312,307,248,297
5
 Y 441,440,461,355,153,127,152
6
 Y 466,460,453,465,88,127,114
7
 Y 285(16),222,405,459,404,417,418,458(10)
8
 Y
B		 405(4),159(15),25(16),420,413(14),
351,344,402,355(15)
9
 Y (batch 1)
B (batch3)		 ?,61,56,?
381,380,351,256(15)
10
 Y (batch 1)
B (batch3)		 484(11),240,258,259,370(10)
34,48,21,118(15)
11
 Y (batch 1)
B (batch3)		 284,287,172,176,282(2)
????
Date of BATCH 
WLS/profile
Long Profiles 
Short Profiles
A12B11
 No batch numbers recorded
A13B11
A13B12
A14B12
A14B13
A15B13
A15B14
A16B14
A16B15
C10
D4
ITC Fibers #: Right: 69 Left:  69
Aspirin Tubes :
Laser Fiber  Odd Side:
EB17		 Even Side:
EB18
Epoxy Batch # Resin:
30C100517		 Hardner:
300472817

 
 
 

QC 2,3,4 Problem List

Tile Layer
Cell
Side
Tile *
Problem
Fixed ?
8 D6 E 5,12,22,38,40,49,50,
68		 sparklers See note 5.8
9 D6 E 59 sparklers
9 D6 O 45,46 sparklers
8 D6 O 15,17,13,21,37,59,
61,67,70,75		 sparklers
9 D5 E 1,6,9 sparklers
8 D5 E 26,27,28,30,32,35,39,
49,52,61,63		 sparklers
8 D6 E 62,65 sparklers replaced
profiles
11 D4 O 16 missing yes

NOTE: Tiles are numbered from the beginning of the cell, starting at the tile closest to the ITC end of the module. Count every other profile to count the tiles. Odd tile layers start at the cell boundary (count from the first profile), even tile layers start with a spacer plate (count from the second profile). The tile counting stick makes it easier to locate the tiles.


QC6 PROBLEMS
First LED Scan
Final LED Scan

This page maintained by: - RJM