Muon Meeting April 2004JsG Status of Chambers Production at CERN Jean-Sebastien Graulich o Open...

Muon Meeting April 2004 JsG

Status of Chambers Production at Status of Chambers Production at CERNCERNJean-Sebastien Graulich

o Open Questions from the PRR• O-ring Aging, Aging tests, Storage

oWhat we have learnt from production of M3R1 • Production Rate, Schedule and Flow• Quality Control • Problems met

o What we plan for production of M3R2• Todo List• Supplies• Forecasts

o Conclusions

Muon Meeting April 2004 JsG Slide 2

From PRR…From PRR…““The long term stability of the O-ring material The long term stability of the O-ring material

is not yet fully documented in our view. is not yet fully documented in our view. This ought to be done before the final This ought to be done before the final closing of the chambers.”closing of the chambers.”

Optical Inspection (x50) when stretched :Optical Inspection (x50) when stretched :

Reference Sample Aged Sample

Exposed to gas

Not Exposed


From PRR…From PRR…““We propose that the ageing studies are We propose that the ageing studies are

vigorously pursued. We furthermore vigorously pursued. We furthermore recommend that gas and chamber recommend that gas and chamber parameters are well understood and parameters are well understood and monitored throughout these tests to monitored throughout these tests to provide a solid basis for the choice of the provide a solid basis for the choice of the final gas mixture and gas distribution final gas mixture and gas distribution system”system”

Ageing studies will start this month.Ageing studies will start this month.


From PRR…From PRR…““““The question of where and how to store the The question of where and how to store the

chambers after they are produced, but chambers after they are produced, but before they can be installed at the before they can be installed at the experiment, ought to be revisited.”experiment, ought to be revisited.”

Should be solved this month.Should be solved this month.


Nominal Production Rate: 1 Chamber/weekNominal Production Rate: 1 Chamber/week The time needed for the glue to dry drives The time needed for the glue to dry drives

the production timethe production time We avoid having 2 people working on the We avoid having 2 people working on the

same panel on the same daysame panel on the same day It takes ~2.5 weeks to produce 1 Wired panel=> We have to work on 6 wired panels in parallel (3 ch) It takes 4 days to produce 1 central/outer panel=> We can work with only 3 simple panels in parallel (1

ch) There is a long lag between delivery of There is a long lag between delivery of

panels and the first assembled chamber.panels and the first assembled chamber.

M3R1 Production M3R1 Production RateRate


M3R1 Production M3R1 Production FlowFlow

Outer Panel 1

Outer Panel 2

Wired Panel 2

Wired Panel 1

Central Panel

Production of M3R1 Chambers

0

2

4

6

8

10

12

14

16

Time

Cha

mbe

rs

Produced

Planned

Production of M3R1 Wired Panels

0

5

10

15

20

25

30

35

Time

Wir

ed P

anel

s

Produced

Planned

Production of M3R1 Simple Panels

0

5

10

15

20

25

30

35

Time

Out

er P

anel

s

Produced

Planned


M3R1 Production M3R1 Production ScheduleSchedule

Monday Who Volume DeviceWP wiring JSG 2 WMWP bars gluing side b JSG 1 BGMlab cleaning JSG 0.5 -lab cleaning AP 0.5 -WP wires cutting and components soldering AP 3 SSWP Connector soldering AP 2 SSWP O-ring pins gluing side a AP 0.25 MARWP Final Inspection TS 2 MICOCP Final inspection TS 0.5 MICICP Final inspection TS 0.5 MICCH Leak Test VS 1.5 LRMTuesday Who Volume DeviceWP wires gluing side b JSG 1 (WM)WP turn out JSG 1 -WP gap test JSG 1 MARWP bars gluing side a JSG 1 BGMWP O-ring pins gluing side b AP 0.25 MARICP Preparation (minimum 2 panels) AP 3 VENTOCP Preparation (minimum 4 panels) AP 3 VENTWP HV Test VS 2 HVBWednesday Who Volume DeviceWP Wire soldering JSG 1 WSMWP PWTM JSG 3 PWTMWP Wire winding JSG 2 WMWP bars gluing side b JSG 1 BGMOCP Kapton gluing AP 0.5 MARICP Kapton gluing AP 0.5 MAROCP connector soldering AP 2.5 SSICP connector soldering AP 2.5 SSWP Final Inspection TS 2 MICCH HV Test VS 4 HVCThursday Who Volume DeviceWP wires gluing side b JSG 1 (WM)WP turn out JSG 1 -WP gap test JSG 1 MARWP bars gluing side a JSG 1 BGMWP Wires cutting and components soldering AP 3 SSWP connectors soldering AP 2 SSWP O-ring pins gluing side a AP 0.5 MARWP HV Test VS 2 HVBFriday Who Volume DeviceWP turn out side a JSG 0.5 -WP wires soldering JSG 1 WSMWP PWTM JSG 3 PWTMWP O-ring pins gluing side b AP 0.5 MAROCP Kapton gluing AP 0.5 MARICP Kapton gluing side b AP 0.5 MAROCP gas inlets gluing AP 0.5 MARICP Preparation (minimum 2 panels) AP 3 VENTCH Assembly TS 3 AA

Man Power Balance

Monday Who VolumeJSG 3.5AP 5.75TS 3VS 1.5

Tuesday Who VolumeJSG 4AP 6.25TS 0VS 2

Wednesday Who VolumeJSG 7AP 6TS 2VS 4

Thursday Who VolumeJSG 4AP 5.5TS 0VS 2

Friday Who VolumeJSG 4.5AP 5TS 3VS 0

WeeklyWho Volume FTE

JSG 23 58%AP 28.5 71%TS 8 20%VS 9.5 24%

Device BalanceWeeklyDevice Volume FTE

AA 3 8% Assembly areaBGM 32 80% Gluing MachineHVB 20 50% High voltage test boxHVC 24 60% High voltage channelLRM 8 20% Leak rate measurement setupMAR 6 15% Marble tableMIC 5 13% Microscope table

PWTM 6 15% Pitch and wire tension measurement machineSS 15 38% Soldering Station

VENT 9 23% Ventilated areaWM 32 80% Winding machine


M3R1 Production M3R1 Production LimitsLimits

Limitations on production rateLimitations on production rate Manpower

80 % is a absolute maximum because of meetings, other duties and trouble shooting.

We are close to the limit but still ok Machines

Bars gluing machine is in use 4/5 days Winding machine can be freed 2/5 days if we

glue the wires elsewhere We have large margins everywhere but for the

BGM Storage Place

No problem for region 1, we can store more than 30 panels in work (6 chambers)

For region 2, it’s only 16 (3 chambers)


Some problems we have met… (and how Some problems we have met… (and how we solved them)we solved them)

HV training 2 different behaviors (6 long training/60 gaps) Sparks (1/60 gaps) Broken components (1/2500 capacitors, 0 resistors)

Wiring Pitch out of specification (during training period

only) Guard wire fixation (during training period only) Problems due to holes in the combs (solved)

Bars Gluing Detaching bars (1/60 gaps) Gluing mistake (1/60 gaps)

Broken Wires Only 1 panel has been lost (over 30)Only 1 panel has been lost (over 30)

M3R1 Production M3R1 Production ProblemsProblems


M3R1 Quality M3R1 Quality ControlControl

Half Gap Reference pointsHalf Gap Reference points Min 95 % into [2.45, 2.55] mm, all points into [2.42, Min 95 % into [2.45, 2.55] mm, all points into [2.42,

2.58] mm2.58] mm



Pitch MeasurementPitch Measurement Min 95 % into [1.95, 2.05] mm, all points into [1.90, Min 95 % into [1.95, 2.05] mm, all points into [1.90,

2.10] mm2.10] mm



Wire Tension MeasurementWire Tension Measurement All tension higher than 50 g, Max deviation < 0.1 TAll tension higher than 50 g, Max deviation < 0.1 T00



Chamber Thickness: Envelope = 75 Chamber Thickness: Envelope = 75 mmmm



Leak rate: < 2 mbar/hour (@? mbar Leak rate: < 2 mbar/hour (@? mbar P)P)

Measured with a reference volume in a thermally isolated box

TCh TRef ConstantdV/V d (PCh-PRef)/PCh

Absolute Error on Patm cancels out

Absolute Pressure

956.5

957

957.5

958

958.5

959

959.5

0 2 4 6Time (h)

Pre

ssur

e (m

bar)

Temperature

22.3

22.4

22.5

22.6

22.7

22.8

22.9

0 2 4 6Time (h)

Tem

pera

ture

(C)

T ChT Ref

Over Pressure

0123456789

0 2 4 6Time (h)

OP ChOP Ref

Relative overpressure difference

y = -0.0007x - 0.0008-0.500%

-0.400%

-0.300%

-0.200%

-0.100%

0.000%0 2 4 6

Time (h)

(OP1 -OP2)/P1

Linear Fit



Gas gain uniformity Gas gain uniformity Still under developmentStill under development

Pad 1

Pad 2

Pad 3

Etc..

delay

+20ns

+20ns

TDC

QDC All Anodes

DelayLine

Am Source spectrum@ 2.65 kV



High rate capabilities High rate capabilities At least all region 1 chambers At least all region 1 chambers

will be exposed to GIF for 1 day.will be exposed to GIF for 1 day.


PCB’s are ordered since Feb 24. They should be PCB’s are ordered since Feb 24. They should be sent for foam injection this week.sent for foam injection this week.

A first batch of panels should be at CERN on A first batch of panels should be at CERN on Apr 26, and the rest in MayApr 26, and the rest in May

In the Meanwhile:In the Meanwhile: Upgrade of toolings

New frame for bars gluing New axis for Wire Winding New drilling calibre New Connector Soldering calibre New box for panel HV test New insulated box for leak test

Preparation of panel protections Workspace optimization General Maintenance Travelers

M3R2 ProductionM3R2 Production


M3R2 PartsM3R2 Parts

Wire fixation and side bars:Wire fixation and side bars: 30+30+630+30+600

Apr 26Apr 26

Wire (30 microns)Wire (30 microns) ~20 km~20 km Apr 23Apr 23Guard Wire (100 microns)Guard Wire (100 microns) 120 m120 m In stockIn stockConnectors (17-pins, 4.2 mm)Connectors (17-pins, 4.2 mm) 16801680 OrderedOrderedHV CapacitorsHV Capacitors 57605760 OrderedOrderedHV Resistors 100kHV Resistors 100k 57605760 OrderedOrderedHV WiresHV Wires 120120 To be cutTo be cutO-ring pinsO-ring pins 960960 In stockIn stockGas inletsGas inlets 120120 In stockIn stockKapton StripsKapton Strips 120120 To be cutTo be cut

Panel ProductionPanel Production


M3R2 PartsM3R2 Parts

Gap SpacersGap Spacers 26402640 ReadyReadyO-ringsO-rings 120 120 Being Being

cleanedcleanedMechanical Frame fixation screwsMechanical Frame fixation screws 13201320 In Stock at In Stock at

CERNCERNMechanical Frame fixation threaded Mechanical Frame fixation threaded rodsrods

660660 ReadyReady

Mechanical alodinized Frame barsMechanical alodinized Frame bars 120+120120+120 To be To be orderedordered

Chamber AssemblyChamber Assembly


M3R2 ConsumablesM3R2 ConsumablesBars gluing Syringes ( 30 ml) Bars gluing Syringes ( 30 ml) 120120 ReadyReadygluing needles (large, brown)gluing needles (large, brown) 120120 ReadyReadyBars gluing syringe stoppers (large) Bars gluing syringe stoppers (large) 120120 ReadyReadyWires gluing Syringes ( ml) Wires gluing Syringes ( ml) 120120 ReadyReadyWires gluing needle (medium, pink) Wires gluing needle (medium, pink) 120120 ReadyReadyWires gluing syringe stoppers (small) Wires gluing syringe stoppers (small) 120120 ReadyReadyGlue mixersGlue mixers 480480 ReadyReadyGlue Adekit 145 NRGlue Adekit 145 NR 120120 ReadyReadyGlue Adekit 140Glue Adekit 140 3030 ReadyReadyGloves, masks, hats, etcGloves, masks, hats, etc ManyMany In stock at In stock at

CERN CERN


M3R2 ProductionM3R2 Production Compare to M3R1Compare to M3R1

# wires is doubled => Double time for winding, soldering, PWTM, wire cutting and inspection

Length is doubled => 30% more gluing time Area is doubled => Double panel cleaning time 80% more holes => 80% more drilling time

20% more assembly time Single cathode RO => No soldering nor electrical

tests on Simple panels Same # wire pads => Same components

soldering time Other procedures are not affected

All in all, ~30 % more time All in all, ~30 % more time Can be absorbed by the team. Can be absorbed by the team.


M3R2 Production M3R2 Production planplan

First M3R2 Chamber on May 21stFirst M3R2 Chamber on May 21st

27 Chambers on November 30st27 Chambers on November 30st

Production of M3R2 Chambers

0

5

10

15

20

25

30

Time

Cha

mbe

rs

Produced

Planned


ConclusionsConclusions M3R1 Production finished on scheduleM3R1 Production finished on schedule

The crew is now well trained Gap, Pitch, Wire Tension, Thickness, Leak rate

and HV specifications are all met Gas gain uniformity and High rate tests are still

under development M3R2 Production is in the starting M3R2 Production is in the starting

blocksblocks Panels must arrive before May 5 First chamber expected for May 21 Supply of parts and consumables is under control

Production bottlenecks areProduction bottlenecks are Man power Bars gluing Storage

Muon Meeting April 2004JsG Status of Chambers Production at CERN Jean-Sebastien Graulich o Open...

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Transcript of Muon Meeting April 2004JsG Status of Chambers Production at CERN Jean-Sebastien Graulich o Open...