Mathieu Therasse BE/RF/SRF 1
Assembly Procedures of the cavities Ancillaries (RF power coupler, Tuning system, RF cables)
19/03/2014
Special Linac WG meeting: Assembly of the ISOLDE CryomodulesK. Artoos, A. Boucherie, P.F. Marillac, T. Renaglia, G. Villiger, K. Schirm, W.
Venturini
Mathieu Therasse BE/RF/SRF 2
OVERVIEW
• CONDITIONING OF PIECES FOR CLEANROOM• CAVITIES DELIVERY• COUPLER SYSTEM ASSEMBLY PROCEDURE• TUNER SYSTEM ASSEMBLY PROCEDURE• RF CABLES ASSEMBLY PROCEDURE
19/03/2014
3
CONDITIONING OF PIECES FOR CLEANROOM
19/03/2014 Mathieu Therasse BE/RF/SRF
Baldaquin ISO5 in SM18 (for conditioning)
Piece preparation - All piece has to be degreased- Before entering in baldaquin clean it with alcohol
and blow with N2 gas- The person inside has to blow it with N2 gas- Clean it again inside the Baldaquin (with cleanroom
cloth with alcohol)- Put it in 2 plastic bag (Antistatic and used for clean
room) with N2 gas and close it
Cleanroom assembly SM18
Before entering in ISO7- Remove the first plastic bag- Blow it with N2 gas - Give it to the person inside the
cleanroom (who blows the bag from inside to outside with N2 gas)
- Open the last plastic just before installation
Rmk: The person outside has to manipulate all piece with gloves (without powder)
Mathieu Therasse BE/RF/SRF 4
CAVITIES DELIVERY
19/03/2014
Cavity storage:- Beamport support (installed before the RF test)- Tuning plate and tuning plate collar (installed
before the RF test)- Special support for the multifunction trolley
(installed after the RF test)- Beamport, pick-up and coupler protections (under
design)- 2 plastic bags (antistatic, PEBP) with N2 gas
Cavities will be stored in SM18 in ISO5 Baldaquin on a support trolley.
Cavities will be transported between the baldaquin and the cleanroom with a special trolley.
Mathieu Therasse BE/RF/SRF 5
COUPLER SYSTEM ASSEMBLY PROCEDURE
19/03/2014
RF coupler line
Motor Control
UHV rotary motion
Rod
RF power coupler
Mathieu Therasse BE/RF/SRF 6
UHV ROTARY MOTION FEEDTHROUGH INSTALLATION
19/03/2014
Preparation- Reception of the UHV rotary motion from MDC Vacuum- Drilling of the rotary axis on the vacuum part and of the extension rod- Leak detection of the UHV rotary motion- Connection of extension rod and UHV rotary in the ISO5 baldaquin - Conditioning in double plastic bags (PEBP) with N2 gas
Installation on the top plate (for top plate leak test)
- Clean (dust cloth and alcohol) and check (no particle, scratch) top flange and UHV Rotary motion knifes
- Put the CF 40 copper gasket- Fix the UHV rotary motion
extension rod
feedthrough
7
ROTARY AXIS INSTALLATION ON THE CRYOMODULE
19/03/2014 Mathieu Therasse BE/RF/SRF
Preparation- Axis reception (+ support ring)- Degreasing (102bldg or 867bldg)- Conditioning in Baldaquin ISO5 in SM18 (alcohol and 2 plastic bags with N2 gas)
Procedure
- Pass the axis through the passive thermal screen from the bottom, and plug it to the UHV rotary motion axis (Hexagonal head).
- Fix the support ring in order to maintain the rod on the passive screen (2 half rings).The rod is supported by the thermal screen
Support ring Top view Screen
Support ring Bottom view
Mathieu Therasse BE/RF/SRF 8
RF POWER COUPLER INSTALLATION
19/03/2014
Preparation- Coupler reception (Cold tested in SM18 vertical Test stand)- Conditioning in baldaquin
Procedure- Put the antenna all out (in order to protect it)- Put the Hexagonal head of the coupler in the cylindrical piece of the axis- Give an angle to the axis in order to pass the coupler through the support - Screw it on the cavity- Put the antenna ALL IN
Preparation- Mount the motor control in the baldaquin ISO5- Conditioning with 2 plastic bags with N2 gas
COUPLER MOTOR CONTROL INSTALLATION
19/03/2014 Mathieu Therasse BE/RF/SRF 9
Procedure- Put the handle on the motor- Put the motor on the TOP switch position (antenna ALL IN)- Fix it on the UHV rotary motion (tighten the bellow and 4 screws) - Put the antenna ALL OUT (by hand with the handle)- Adapt the position of the BOTTOM switch (antenna ALL OUT) if it is necessary- Put the antenna all in
Bellow
Switch
Mathieu Therasse BE/RF/SRF 10
PICK-UP INSTALLATION
19/03/2014
Preparation - Reception of the antenna, copper extension, RF connector - Degreasing of each piece at the chemistry- Clean each part with alcohol, blow with N2 gas and do the assembly in
baldaquin ISO5 in SM18- Conditioning with 2 plastic bags with N2 gas
Installation on the cryomodule- Fix the antenna on the cavity
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TUNER SYSTEM ASSEMBLY PROCEDURE
Tuner line
Motor control
Axis
Lever arm
Mathieu Therasse BE/RF/SRF 12
TUNER MOTOR INSTALLATION
19/03/2014
Procedure (top plate leak test)- Check that the motor is on the BOTTOM END switch (corresponding to the
tuner plate flat position) + 6mm (6 turns)- Clean the knife with a dust cloth and alcohol- Check particle or default on motor and top plate knifes- Put a CF 63 copper gasket - Fix the motor on the top plate flange and screw it
Preparation- Motor control reception- Conditioning with 2 plastic bags with N2 gas
Mathieu Therasse BE/RF/SRF 1319/03/2014
TUNER AXIS INSTALLATION
Procedure- Pass the axis through the thermal screen from the bottom- Connect the second part of the axis to the tuner control
Preparation- Reception of the 2 axis parts, 2 link motion- Degreasing- Assembly of the axis in baldaquin ISO5- Conditioning with 2 plastic bags with N2 gas
Mathieu Therasse BE/RF/SRF 14
LEVER ARM INSTALLATION (I)
19/03/2014
Procedure - Put the central screw on the tuning plate and block
it with a nut.
- Fix the tuning mechanism to the tuning plate collar. Screw the grey part.
Preparation- Reception of lever arm mechanism - Degreasing in Bldg 102- Mounting and conditioning in baldaquin in SM18- Conditioning in 2 plastic bags with N2 gas
Mathieu Therasse BE/RF/SRF 1519/03/2014
Procedure - Adjust position of levers and clevis at the rod and in the centre- Fix the screws and the counter screws to connect the rod
LEVER ARM INSTALLATION (II)
Mathieu Therasse BE/RF/SRF 16
RF CABLES ASSEMBLY PROCEDURE
19/03/2014
Preparation- Cable reception from Huber and Suhner with connectors (N type, 7/16”) - UHV RF connector receipt from Hositrad Ceramtec cie, and Allectra- Leak detection on each connector- Cable testing (with Network analyser, attenuation…)- Conditioning cables and connectors with 2 plastic bags and N2 gas
Procedure- Clean and check connectors and top plate flanges knifes (dust, scratch)- Pass the cable through the thermal screen and connect it to RF connector on the top plate- Fix the insulating tube on the passive screen- Connect cables to the pick-up and the RF power coupler
N type double sided on CF 40 flange (Allectra)
7/16” double sided on CF 63 flange (Ceramtec)
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