CLIC08 workshop Structure production: CERN activities and Master Schedule G. Riddone, W. Wuensch, R. Zennaro, Contributions from C. Achard, S. Atieh, V. Dolgashev, D. Glaude, S. Heikkinen, A. Samoshkin, I. Syratchev + KEK/SLAC collaborations 15.10.2008
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CLIC08 workshop Structure production: CERN activities and Master Schedule
CLIC08 workshop Structure production: CERN activities and Master Schedule. G. Riddone, W. Wuensch, R. Zennaro, Contributions from C. Achard, S. Atieh, V. Dolgashev, D. Glaude, S. Heikkinen, A. Samoshkin, I. Syratchev + KEK/SLAC collaborations 15.10.2008. Content. Accelerating structures - PowerPoint PPT Presentation
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CLIC08 workshop
Structure production: CERN activities and Master Schedule
G. Riddone, W. Wuensch, R. Zennaro,
Contributions from C. Achard, S. Atieh, V. Dolgashev, D. Glaude, S. Heikkinen, A. Samoshkin, I. Syratchev+ KEK/SLAC collaborations
15.10.2008
CLIC08 – Structure production and MS, 15.10.2008
Content
• Accelerating structures• PETS• RF components
• Structure Master Schedule
2
ACCELERATING STRUCTURES
CLIC08 – Structure production and MS, 15.10.2008 3
CLIC08 – Structure production and MS, 15.10.2008
Production cycle for acc. structures
4
Discussion…
If not possible
30 GHz – Speed bump, TM02, vg2.6
CLIC08 – Structure production and MS, 15.10.2008 5
35 m
m
4 tuning holes
25 m
m
TM02 before brazing
Speed bump
Speed bump cell
11.4 GHz - CLIC vg1, T18
QUADRANTS2 damped structures (1 from KEK and 1 from CERN)
DISKS5 undamped structures (4 from KEK/SLAC and 1 from CERN)3 damped structures (2 from KEK/SLAC and 1 from CERN)
Damped disks
Damped structure#1 ready for brazing (CERN)
CLIC08 – Structure production and MS, 15.10.2008 6
Undamped diskDamped quadrants
11.4 GHz - CLIC G and C10CLIC G - T2411.4 GHz (tank and sealed configurations possible)- 2 undamped structures
Reproducibility tests: High shunt impedance, elliptical iris, 1C-SW-A3.75-T2.6-Cu High shunt impedance, round iris, 1C-SW-A3.75-T1.66-Cu Low shunt impedance, made of CuZr, 1C-SW-A5.65-T4.6-CuZrThree high gradient cells, low shunt impedance, 3C-SW-A5.65-T4.6-Cu
Geometry tests:Photonic-Band-Gap in high gradient cell, 1C-SW-A5.65-T4.6-Cu-PBGHighest shunt impedance, a/lambda = 0.105, 1C-SW-A2.75-T2.0-CuThree cells, WR90 coupling to power source, 3C-SW-A5.65-T4.6-Cu-WR90High shunt impedance, choke with 4mm gap, 1C-SW-A3.75-T2.6-Choke-Cu
Materials: High shunt impedance, elliptical iris, 6N copper, 1C-SW-A3.75-T2.6-6N-CuHigh shunt impedance, made of CuZr, 1C-SW-A3.75-T2.6-CuZrLow shunt impedance, made of CuCr, 1C-SW-A5.65-T4.6-CuCrHigh shunt impedance, made of CuAg, 1C-SW-A3.75-T2.6-CuAg Low shunt impedance, made of CuAg, 1C-SW-A5.65-T4.6-CuAg
Traveling Wave structures, different materialsT53MC first cell: Copper, 1C-TW-A3.88-T1.66-CuStainless steel, 1C-TW-A3.88-T1.66-SSCopper-Molybdenum, 1C-TW-A3.88-T1.66-CuMo
Next experiments, as for 13 October 2008
V. Dolgashev
PETS
CLIC08 – Structure production and MS, 15.10.2008 19
PETS
CLIC08 – Structure production and MS, 15.10.2008 20
PETS at 11.4 GHz L = 300 mmTested at SLAC
PETS at 12 GHz L = 1000 mmTested in the TBTS
Mechanical design
CLIC08 – Structure production and MS, 15.10.2008 21
Dimensional control – 1-m long PETS
CLIC08 – Structure production and MS, 15.10.2008 22
During fabrication decision to enlarge the shape tolerance to +/- 25 mm
VDL
RF Components
CLIC08 – Structure production and MS, 15.10.2008 23
RF components
CLIC08 – Structure production and MS, 15.10.2008 24
Hybrids
GYCOM, Russia10 units, all available at CERN
RF and mechanical design, CERNUnder fabrication VDL, Holland10 units
Splitters
RF and mechanical design, CERNFabrication CINEL, Italy5 units , 2 available at CERN
Directional couplers
Choke mode flanges
RF and mechanical design, CERNFabrication Fluckiger, CH2 units shipped to SLAC
RF components
CLIC08 – Structure production and MS, 15.10.2008 25
12 GHzRF and mechanical design, CERNFabrication CINEL, Italy and VDL, Holland10 units: 6 available at CERN (AISI316LN)
11.4 GHzRF and mechanical design, CERNUnder fabrication CINEL4 units (SS430)
(stainless steel) RF load
Attenuator/phase shifter Scaled from 30 GHz CERN version. GYCOM Russia.5 units: 2 available at CERN
STRUCTURE MASTER SCHEDULE
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Structure status
X-band structures in the pipeline- CLIC vg1 - CLIC G (11.4 and 12 GHz)- C10- CLIC 500 GeV structure- C10 choke mode- CLIC structures with compact coupler- PETS
30 GHz in the pipeline- Speed bump- TM02- Vg2.6
CLIC08 – Structure production and MS, 15.10.2008 27
X-band Structure Master Schedule 1/2
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