Collaboration for R

1
Collaboration for RD on High Power Couplers
Collaboration teams
LAL coupler team Hassen Jenhani (Leader),
Pierre Lepercq, Alessandro Variola, Mickael
Lacroix Walid Kaabi
KEK coupler team Eiji Kako (Leader)Shuichi
NoguchiHitoshi Hayano
Hassen Jenhani, 11 July 2008, KEK
2
For more information about prototypes Pierre
LEPERCQ (LAL) lepercq_at_lal.in2p3.fr
Hassen Jenhani, 11 July 2008, KEK
3
The different steps

• Actions at LAL
• Cleaning of all the coupler pair assembly parts
  using the cleaning procedure for the TTF-III
• Assembly of the coupler pair on the test box
• Leek test inside of the clean room
• Fill couplers part with nitrogen (1 bar)
• Assemble the waveguide transition of each
  coupler
• Low RF measurements
• Do the packaging and send to KEK

• Actions at KEK
• Reception and external visual inspection
• Vacuum arrangement connection and gauges
  connection
• Simultaneous baking pumping of the residual
  gases
• Pumping down using turbo-molecular pumps one
  pump for the warm parts and one pump for the
  cold parts
• Connection to the wave guide network
• Conditioning of the coupler (KEKLAL staff)
  December 2008

Hassen Jenhani, 11 July 2008, KEK
4
The conditioning procedure
The target is to reach 1 MW for 400 µs pulses and
0.5 MW for 1300 µs pulses (as for TTF-III
couplers). Then, 2 MW RF test have to be
discussed.
Hassen Jenhani, 11 July 2008, KEK
5

• STF-BL cavity-group meeting July 14th, 2008 (at
  1500 Fifth floor)
• Presentation and discussion about
• LAL coupler activities (last results)
• LAL/KEK TTF-V conditioning test

Thank you
Hassen Jenhani, 11 July 2008, KEK