1

Industrial Production of MPGDs

Rui de OliveiraWorkshop on neutron detection with MPGD

CERN 14-15 October 2013

2

Outline

• MPGD production possibilities at CERN• What GEM & MM detectors parts could be

produced in industry?• Present and Future technical possibilities • Conclusion

3

I’m not going to describe all the different detectors we are producingI will focus on last generation GEM and Micromegas detectors.

THGEM is the third type of detector that could be mass produced in industry but there is still work to be done to find competent players.

The final cleaning step needs to be stabilized before asking a company to commit on working parts .

4

CMS GE1/1 Prototype1.1m x 0.45mExpected volume : 300m2

ATLAS Muon prototype2mx1mExpected volume : 1200m2

Examples

5

MPGD possibilities at CERNLarge laminator

1.4mLarge Solvent strip

2m x 0.8m Large exposure

2.2m x 1.4mPI etching

0.6mLarge oven1.4mx 2.3m

Thanks to 9 new equipment and a team of 20 engineer & technicians we have the capability to provide:-GEM up to 2m x 0.5m

-Micromegas detectors up to 2m x 1m-THGEMs up to 600mm x 600mm

Equipment are essentially dedicated to prototype production.

Possibilities for medium to high volume productions (but needs formal agreement).

Large developer Large stripper Large etcherLarge electro-etch

2m x 0.8m

IIn 107 1mNow 0.6m In 107In 107

6

New Building 107

7

New Building 107

8

New Building 107

9

• The construction have started mid 2012• The construction should end mid 2014• Roof should be in place this winter

• 40 square meter room reserved for MPGD assembly• All the machines for large size detectors production are in the layout• 1400m2 area dedicated to the PCB workshop with optimized layout• Most of the open baths will be replaced by compact machines• Rooms are reserved for new processes (laser and plasma)

New building 107

10

Outline

• MPGD production possibilities at CERN• What GEM & MM detectors parts could be

produced in industry?• Present and Future technical possibilities • Conclusion

11

GEM detector NS2 assembly

12

GEM detector NS2 assembly

13

GEM detector NS2 assembly

14

GEM detector NS2 assembly

Readout connector

O-ring

Drift electrode

Sector Resistors

Pulling screws to adjuststretching

GND

GND

GEM attaching structure(4 pieces defining gaps)Free to slide on +/-1mm

Embedded nutO-ring

3 GEMs

15

Gem Stack

16

Stretch

17

GEM detector parts in industry

• Read-out PCB STD PCB producers• Drift PCB STD PCB producers• Frames STD PCB producers• Screws , o-rings, gas plugs etc std parts• GEM needs specific companies

18

Large PCB procurement:

• Any company for boards smaller than 500mm x 500mm

• Viasystem• US company• Multilayer boards size : 1.2m x 0.5m

• ShenZhen SinoFast Electron Limited • Chinese company• Multilayer boards size: 1.3m x 0.5m• large boards are now being produced

• ELTOS• Italian company• Single sided boards size: 2.3m x 0.5m• Double sided boards size: 1.2m x 0.5m• Multilayer boards size: 700mm x 0.5m

• ELVIA• French company• Single sided boards size: 2.3m x 0.5m• Double sided boards size : 700mm x 0.5m?• Multilayer boards size: 700mm x 0.5m

19

GEM in industry • Techtra

• Polish company• Making GEM since 10 years• Licensed by CERN• Setting up equipment for large GEM production since 1 year• 30cm x 10cm GEMs already produced• CERN qualified for GEM 10cm x 10cm• Ready for mass production with small sizes

• UPLUS/Mecharonics• Korean company• Making GEM since a few months• Licensed By CERN• 30cm x 30cm GEMs already produced (low quality)• Willing to ramp up to large size• Willing to do mass production

• Tech-etch• US company• Making GEM since 15 years• Many small and medium sizes GEM have been produced• Recently involved in STAR experiment (80 GEMs 40cmx40cm)• Active TT transfer with CERN to build large size foils• Licensed by CERN • Ready for mass production with small and medium sizes

• Scienergy• Japanese company• Making GEM since 6 years• Fine pitch CO2 laser drilled GEM up to 30cm x 30cm• Licensed by CERN• Mass production not foreseen

Small companyOnly Making GEM

Large groupChemical activity

400 personsChemical milling/PCB

Small companyLaser technologies

20

Resistive MicroMegas

21

PCB + readout strips

Read/out PCB:50um Kapton + resistive strips

22

PCB + readout strips

Read/out PCB:50um Kapton + resistive strips

25um Glue

23

PCB + readout strips

Read/out PCB:50um Kapton + resistive strips

25um Glue

Isostatic Gluing

24

PCB + readout strips

Read/out PCB:50um Kapton + resistive strips

25um Glue

Isostatic Gluing

Pillars creation

ATLAS prototype 2m x 1m open

25

Honey comb

Read-out PCB with Pillars

Micromegas

Honey comb

Drift electrode PCB

Closed

26

Micromegas

• Picture : 2m x 1m x 10 mm Aluminum honeycomb drift panel

• Mesh stretched and glued on a frame

• Max size: 3.4m x 2.2m in one piece

• Picture : 2m x 1m x 0.5 mm read-out board with pillars in 4 parts

• 10 mm thick Aluminum honeycomb

• Max size for 1 PCB : 2.2m x 0.6m

28

Micromegas detector parts in industry

• Naked read-out PCB STD PCB producers• Resistive layer STD printing companies• Resistive layer gluing STD PCB companies• Drift PCB PCB producers• Frames/Honey comb plates Mechanics• Screws , o-rings, gas plugs etc std parts• Mesh STD producers

No red !

29

Large PCB procurement:

• Any PCB producer for boards smaller than 500mm x 500mm

• Viasystem

• ShenZhen SinoFast Electron Limited

• ELTOS

• ELVIA

30

Micomegas in Industry • ELTOS

• Italian company• Resistive 10cm x10cm BULK Micromegas OK • Large single side read-out boards and drift (2mx0.5m) OK• Medium size resistive screen printing OK• Screen printing of large area in progress• Pillars on large area OK• Mass production of medium size OK• ATLAS MSW detectors in production 1.2m x 0.5m X/V detector

• ELVIA (see Fabien Jeanneau talk in WG6)• French Company• Resistive 40cm x 40cm BULK Micromegas OK• Large single side read-out boards and drift (2mx0.5m) OK• Medium size resistive screen printing OK• Screen printing of large area in progress• Pillars on large area OK• Mass production of medium size OK• LSBB detectors in production 1.2m x 0.5m X/Y detector

• Seritec• Swiss company near CERN stretching meshes• Stretching 2m x 1m mesh OK• Max possible size: 3.2m x 2.2m• Mass production OK

• Charbonney• Swiss company near CERN doing screen printing• Printing 1m x 0.5m resistive strips OK• Max possible size: 1.5m x 0.9m • Mass Production OK

• MDT• Italian company having an extra large Isostatic press• Press gluing capability 4.2m x 1.6m to be tested• Mass production OK

31

Outline

• MPGD production possibilities at CERN• What GEM & MM detectors parts could be

produced in industry?• Present and Future technical possibilities • Conclusion

32

Present possibilities

• Technical possibilities– Radiation hard devices up to 500 Mrad– High temperature detectors up to 400 Deg– Low temperature (Liquid Argon)– High granularity resolution below 50um– Time resolution below 4ns – High rate up to Mhz/square millimetres– Devices with inbuilt spark dumping system– High IBF reduction configurations down to 0.1%– Special converters

• CSI • Boron • Special gases• Special polymers

– Low mass detectors– Low background detectors

33

Future

• Potential production technical possibilities – Laser patterning

• Fast prototyping – Special GEM shape in a few days

• Pattern any metal – Ex : Aluminium GEMs

• Pattern any dielectrics– PEEK, PTFE, PEI , PET , LCP etc..

– Vacuum deposition• Metals• Resistive layers

– Carbon/diamond resistive layers» Ideas to apply it to GEM, Micro-BULK, Well ,THGEM detectors

• Dielectrics

34

Ex: Laser GEM evolution

Development of gas electron multiplier foils with a laser etching techniqueT. Tamagawaa, <img alt="Corresponding author contact information" src="http://origin-cdn.els-cdn.com/sd/entities/REcor.gif">, <img src="http://origin-cdn.els-cdn.com/sd/entities/REemail.gif" alt="E-mail the corresponding author">, N. Tsunodaa, b, A. Hayatoa, b, H. Hamagakic, M. Inuzukad, H. Miyasakae, I. Sakuraif, F. Tokanaig, K. Makishimaa, h

2000Co2 laser Very precisePhotolithography neededHigh cost

2005UV laserTrepanning + cleaningVery precise No more photolithographyLow speed 100 holes/sMedium/high cost

Lawrence Livermore National Security, LlcUS8410396 B1

2013UV LaserTrepanning + cleaningMulti beamsVery precise High speed 1k to 2k holes/slower cost

See Orbotech talkWG6

35

Neutrons converters possibilities

• Thermal neutrons– B4C vacuum deposition : some experience on GEM at

CERN – BN vacuum deposition : some experience on metals– B10 to be studied– Large sizes up to 600mm width possible in theory.

• Fast neutrons – PET GEMs with aluminium electrodes (need laser)– PET THGEMs with aluminium electrodes feasible

• Polycarbonate THGEMs have already been produced

36

Conclusion

• MPGDs are already in the hands of industry

• Mass production in industry already possible for small and medium size detectors.

• Still many possibilities to investigate in future for new MPGDs