upgrade of sm18 infrastructure on behalf of be/rf-kca section
DESCRIPTION
Upgrade of SM18 Infrastructure on behalf of BE/RF-KCA section. Contents. Cryogenics Vertical test stand V3 Horizontal bunker M7 Klystron Wave guides Status and timescale. Cryogenics. Vertical test stand V3. Yesterday. Warm up bath for pumping. Old separated lines. Tomorrow. - PowerPoint PPT PresentationTRANSCRIPT
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Upgrade of SM18 Infrastructure
on behalf of BE/RF-KCA section
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Contents
• Cryogenics– Vertical test stand V3– Horizontal bunker M7
• Klystron• Wave guides
• Status and timescale
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Cryogenics– Vertical test stand V3
Yesterday
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Old separated lines
Warm up bath for pumping
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Tomorrow
Welded connection
Common insulation vacuum
Integrated pumping
New cryostat with active screening and earth magnetic field compensation
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Internal tubing with exchanger and valves
Surrounded by superinsulation
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4 Cryo service modules in workshop oct.12
Internal section of the distribution line.Cold He return make screening of the liquid He delivery
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V3,4,5,6 Cryo service modules welded in SM18
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Cryogenics– Horizontal bunker M7
CCDTL
Dismantling old lines
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Klystron• Operating frequency f0 : 704.4 MHz • Peak output power at saturation and load VSWR ≤ 1.05 ≥ 1.5 MW • Average output power at saturation and load VSWR ≤ 1.05 ≥ 150
kW • Operating point, below klystron saturation ≤ -1.5 dB • Saturated gain ≥ 40dB • Drive power max 200 Watts • Peak cathode voltage (Ub) at rated output power ≤ 115 kV • Peak cathode current (Ib) at rated output power ≤ 25 A • HV pulse duration 2 ms • HV rise & fall time (each) 80 - 150 μs • RF pulse duration (plateau) 1.7 ms 300 μs(LLRF)+1400 μs(Beam)• Repetition rate 50 Hz
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Wave Guides• Integration in M7 well advanced (BE/RF, EN/MME (drawing office))
• Power distribution• Cryomodule (incl. slope)• New standard 2 kelvin service module
• Still to be done:• Detailed integration of cryomodule repair scenarios
• (i.e. how to lift the top cover of the CM?)
• Cabling (RF and Cryo)• SPL valve box to build
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• Adaptation of Wave guides to module change of tilt
• Tests at 0% and 2 (4?) % slope:• Will require WG distribution modifications (1-2 hours)• CM lifting device to be defined
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Status & timescale (1)• Procurement of equipment:
• Klystron (1x): 1.5 MWp ordered, delivery end Summer ‘13
• Circulator (1x): ordered, delivery Summer ’14 (on purpose, for budget reasons)
• RF loads (3x): 1.5MWp ordered, delivery January ’13
• Waveguides: special pieces (magic tees, bends, bellows) ordered at Mega Industries (USA) (≈50 k$) all straight parts from Spain (≈50 kEuros)
• Modulator: delivery expected by Fall’13 (tbc by D. Nisbet)
• Electrical power: 3*400V 300A reserved with 400A upgrade on ERD2/M18
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Status & timescale (2)
• Key dates:
• Now -> March ‘13: SM18 Cryo distribution replacement • March -> End Summer ‘13: CCDTL tests (Linac 4) • September -> December ’13: SPL HPRF system installation
• Providing the L4 RF tests are moved in Bld150 (3 MeV test stand)? (tbc by F. Gehrig)
• Controls:
• HPRF controls: re-use the PLC system developed and installed for L4 test stand• Cryomodule:
• RF controls expected to be ready by 2014 ( L. Arnaudon )• Cryo controls to be defined ( TE/CRG ) Attention LS1 !
• Low level ?
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Thanks for your attention
• Live visit of SM18 site this afternoon