cleanroom upgrade in sm18 optical inspection bench
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Cleanroom Upgrade in SM18 Optical Inspection bench. SPL internal meeting 6, 7 December. CR upgrade in SM18 & OI bench. High pressure rinsing Cleanroom layout: Existing facility Actual Updated Ultra Pure Water production Optical inspection: SPL01 Cu SPL01 Nb What’s next Conclusion. - PowerPoint PPT PresentationTRANSCRIPT
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J. Chambrillon CERN-BE-RF 1
Cleanroom Upgrade in SM18Optical Inspection bench
SPL internal meeting6, 7 December
07/12/2012
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J. Chambrillon CERN-BE-RF 2
CR upgrade in SM18 & OI bench• High pressure rinsing• Cleanroom layout:– Existing facility– Actual– Updated
• Ultra Pure Water production• Optical inspection:– SPL01 Cu– SPL01 Nb– What’s next
• Conclusion
07/12/2012
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J. Chambrillon CERN-BE-RF 3
High Pressure Rinsing (HPR)
• HPR from SPEC (US).• HP pump (140 bar, 1.1 m3/h)
@ 3 stages to prevent vibration.• Rinsing cabinet with top wand
design (needed in SM18).• Cabinet should have a pass
trough design => load/unload fromdifferent class cleanrooms.
• Drying of the cavity by blowing hot N2.
• Rinsing nozzle to be designed.
07/12/2012
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J. Chambrillon CERN-BE-RF 4
Cleanroom layout (Existing facility in SM18)
Cleanroom facilityRF facilities
Magnet
Cryogenic
07/12/2012
SM18, plan
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J. Chambrillon CERN-BE-RF 5
Cleanroom layout (Actual)
07/12/2012
ISO 7 ISO 4
Air Box
Built in 1991.
Goals :• Increase cleanliness.• Create a rinsing room.• Get ride of the Air Box to gain space.
ISO 14644-1 FS 2094 105 1007 10 000
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J. Chambrillon CERN-BE-RF 6
Cleanroom layout (Updated)
07/12/2012
• Update should be done by Daldrop, initial builder of the facility.• Extension of the rinsing room.• Creation of a preparing room outside of the facility.
ISO 5 ISO 4
ISO 4
OpticalInspectio
n
ISO
5
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J. Chambrillon CERN-BE-RF 707/12/2012
Cleanroom layout (Updated)
Refurbishment of the filtering system with Fan Filter Unit (FFU).
Rinsing room extended to 4.5m high to held the HPR.
Preparing room based on softwall design.
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J. Chambrillon CERN-BE-RF 8
Cleanroom layout (Updated)
07/12/2012
ISO 5ISO 4
Rinsing room close up.
Sequence foreseen:•Cavity preparation for rinsing in ISO 5.•Rinsing of the outside.•Rinsing of the inside.•Pre-drying with Hot N2.•Final drying in ISO 4.•Assembly for RF test.
ISO 5
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J. Chambrillon CERN-BE-RF 9
Ultra Pure Water production
07/12/2012
•Pre-design of the installation, done by Veolia France•Production capacity of 1 m3/h.•UV lamp (185 nm) to prevent bacteria growing and decrease Total Organic Carbone (TOC):
CXHYOZ -> CO2 + H20 -> H2CO3 -> H+ + HCO3- HCO3- absorbed by polishing resin.
•Need to cool down the recirculation water due to the temperature in SM18.
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J. Chambrillon CERN-BE-RF 10
Optical Inspection (Kyoto/KEK)
Camera:3488 x 2616 pix@ 2.5 ips26.1 Mo/picture
Cavity can:– Slide– Rotate
Camera can:– Rotate over 180°
07/12/2012
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J. Chambrillon CERN-BE-RF 11
Optical Inspection
• Optical head in detail
07/12/2012
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J. Chambrillon CERN-BE-RF 12
Optical Inspection (SPL01 Cu)
• Use to perform the functional test of the bench and get experience.
• First picture of an equator welding.
• Easier illumination on copper.
07/12/2012
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J. Chambrillon CERN-BE-RF 13
Optical Inspection (SPL01 Nb)
• Resolution 2 µm/pix.• Image size = 6.9 mm X 5.2 mm.• Scratch or crack observed inside the cut off.• Inspection done by A. Benoit.
07/12/2012
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J. Chambrillon CERN-BE-RF 14
Optical Inspection (SPL01 Nb)
07/12/2012
Crack on SPL01 Nb cut off.
Nb structure close up SPL01.
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J. Chambrillon CERN-BE-RF 15
Optical Inspection, what’s next?
• Get a code to automate the inspection:– Autofocus– Step motion– Auto illumination
• Get a code to automate the analysis:– Colour correction– Image assembly– Contour detection to find defects
07/12/2012
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J. Chambrillon CERN-BE-RF 16
Conclusion
• Contracts should be signed for:– Cleanroom – High Pressure Rinsing– Ultra Pure Water
by the end of the year 2012.• Build a rinsing nozzle.• Develop a code to automate the optical bench
and gain experience with SPL01 Nb.• Optical Inspection is waiting for a quench.
07/12/2012
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J. Chambrillon CERN-BE-RF 17
Acknowledgment:K. Schirm
N. Valverde F. Pillon
M. Therasse A. Benoit
L. AbelThank you for your attention
07/12/2012