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K. Alam, CLIC workshop, October 16-18, 2007 1 CLIC workshop, 16-18 October 2007 Working group “ Two beam hardware and integration” Test module in the two.

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Presentation on theme: "K. Alam, CLIC workshop, October 16-18, 2007 1 CLIC workshop, 16-18 October 2007 Working group “ Two beam hardware and integration” Test module in the two."— Presentation transcript:

1 K. Alam, CLIC workshop, October 16-18, 2007 1 CLIC workshop, 16-18 October 2007 Working group “ Two beam hardware and integration” Test module in the two beam test stand Khurshid Alam, AB-RF 17.10.2007

2 K. Alam, CLIC workshop, October 16-18, 2007 2 Content Introduction Organization Components Phases of layout Layout progress Schedule

3 K. Alam, CLIC workshop, October 16-18, 2007 3 Location Two-beam test stand in CLEX building

4 K. Alam, CLIC workshop, October 16-18, 2007 4 Location CLEX layout TL2 TBL – decelerator reserved space two-beam test stand CALIFES probe-beam linac Space reserved for ITB – Instrumentation Test Beam line

5 K. Alam, CLIC workshop, October 16-18, 2007 5 Two-beam test stand Two Beam Test stand comprises one of modules of CLIC

6 K. Alam, CLIC workshop, October 16-18, 2007 6 Organisation for the 2bts module CERN: RF Design CERN: mechanical design of PETS and ac. structures + rf components CERN and Pakistan, HMC-3, National Centre for Physics: –design of the overall layout and integration, –design, fabrication, installation and commissioning of the experimental vessels and related subsystems

7 K. Alam, CLIC workshop, October 16-18, 2007 7 Components/sub-systems PETS RF components (loads, hybrids, directional couplers, attenuator, waveguides,…) Tanks (PETS tank and Acc. Structure tank) PETS External Assembly support PETS Internal Support inside the tank ON-OFF Mechanism of PETS Under Slung Crane Other sub-systems –Cooling system –Vacuum system (10 -8 mbar)

8 K. Alam, CLIC workshop, October 16-18, 2007 8 Main Tasks Fabrication of the structures Layout design suiting best RF performance. PETS assembly within +/-15 microns Construction of External PETS assembly stand Construction of Internal PETS assembly stand Construction of tank with a base plate welded inside Design and construction of PETS On-Off Mechanism. Design and construction of an under slung crane to handle the equipment of 2BTS module.

9 K. Alam, CLIC workshop, October 16-18, 2007 9 Phases of Layout Phase 1: PETS and loads (no accelerating structures)  mid 2008 Phase 2: PETS and one accelerating structure  end 2008 Phase 3: PETS and a series of accelerating structure (towards clic module)  2009

10 K. Alam, CLIC workshop, October 16-18, 2007 10 Layout Top View PETS and Acc. Structure Tank PETS Tank Acc. Structure Tank PETS in the Tank Wave guides Loads PETS placed with tank invisible Beam Direction Attenuator

11 K. Alam, CLIC workshop, October 16-18, 2007 11 Directional Coupler PETS Assembly in the tank

12 K. Alam, CLIC workshop, October 16-18, 2007 12 PETS Sample (200 mm) successfully fabricated. Next step: fabrication of a 1 m bar In its final configuration, PETS comprises eight octants separated by the damping slots. Each of the slots is equipped with HOM damping loads.

13 K. Alam, CLIC workshop, October 16-18, 2007 13 PETS Assembly PETS assembly is to be done in two stages. Stage-1 In stage one PETS are to be assembled on the external assembling support stand along with cooling circuit. The PETS are to be assembled in +/-15 microns. Stage-2 In this stage the PETS assembly is to be assembled on the internal support and then the whole structure is to be rolled inside the tank by 04 Nos. of bearings present at the 04 corners.

14 K. Alam, CLIC workshop, October 16-18, 2007 14 External and Internal Supports External PETS assembly support (temporary) Internal PETS assembly support (permanent in the tank)

15 K. Alam, CLIC workshop, October 16-18, 2007 15 External Assembling of PETS Step-1: Place the bottom rings and U-Clamps on the stand Step-2: Place bottom half cooling circuit Step-3: Place the 1 st PETS Step-4: Screw the clamps of cooling circuit

16 K. Alam, CLIC workshop, October 16-18, 2007 16 Step-5: Place the longitudinal PIN Step-6: Place the 2 nd PETS with the PIN Step-7: Place the 3 rd and 4 th PETS Step-8: Place the centering element

17 K. Alam, CLIC workshop, October 16-18, 2007 17 Place the other bars in the same way and screw the cooling circuit with the bars.

18 K. Alam, CLIC workshop, October 16-18, 2007 18 Put the top Half Ring and screw it with bottom half ring. Use these screws to fix the whole assembly against transverse misalignment. Fix the couplers by screwing it with PETS

19 K. Alam, CLIC workshop, October 16-18, 2007 19 PETS assembly on Internal Support STEP-1 When the assembly of the PETS is done place the PETS assembly vertically on the support as in the figure. Step-1

20 K. Alam, CLIC workshop, October 16-18, 2007 20 Step-2 STEP-2 When placed on the adjustment bolts, then check if it is properly placed, if not then use the adjusting bolts for the alignment, for the horizontal and vertical alignment as well. Horizontal alignment bolt/screw Vertical alignment bolt

21 K. Alam, CLIC workshop, October 16-18, 2007 21 Step-3 STEP-3 Use the longitudinal alignment bolts for longitudinal adjustment Longitudinal bolt

22 K. Alam, CLIC workshop, October 16-18, 2007 22 Cross-Section View Crane Air Conditioning Ducts Under Slung Crane An under slung crane is required in the building where 2BTS is to be installed as follows;

23 K. Alam, CLIC workshop, October 16-18, 2007 23 Under slung Crane Runway Beam Bridge Girder End Girder

24 K. Alam, CLIC workshop, October 16-18, 2007 24 On-Off Mechanism of PETS (a possible solution)

25 K. Alam, CLIC workshop, October 16-18, 2007 25 PETS On-off mechanism ON OFF

26 K. Alam, CLIC workshop, October 16-18, 2007 26 Cavity along the PETS The plunger has to move inside the cavity with the external force to shut off the power.

27 K. Alam, CLIC workshop, October 16-18, 2007 27 When the power is on, all the 8 Nos. of plungers are in the transverse cavities but don’t interfere with the circular longitudinal cavity as shown above. The power gets off when all the 8 Nos. of plungers move inside the circular longitudinal cavity as shown above.

28 K. Alam, CLIC workshop, October 16-18, 2007 28 Copper Springs Stainless steel Plunger Fixed area

29 K. Alam, CLIC workshop, October 16-18, 2007 29 Deflection resultsStresses results

30 K. Alam, CLIC workshop, October 16-18, 2007 30 Conclusions Progress on the test module in agreement with the schedule –PETS assembly strategy will be tested at the end of 2007 –tank and components needed for phase 1 will be delivered to CERN in march 2007 Main beam: –tank is under study –closer CLIC module configuration to be studied (alignment and stabilization features to be integrated) CLIC module

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