ilc waveguide production industrialization study marc ross awlc14 may 15, 2014 fermilab
TRANSCRIPT
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ILC Waveguide Production Industrialization Study
Marc RossAWLC14
May 15, 2014Fermilab
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For low power RDR-like option, one klystron powers 1 ½ “rf units” or 4 ½ cryomodules.
RF UNIT: 3 cryomodules (26 cavities)6 windows(assuming ~2 MW capability)
from 10 MW klystron
variable power divider, pressurizable, 0-100%, phase stablepressure windowvariable H-hybrid, non-press., limited range5 MW load
Local Power Distribution System (LPDS)
9 cavities 9 cavities 4 cavities quad 4 cavities
WR770 run
original layout
new layoutBeam current lowered, 1/3 of klystrons eliminated
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isolator w/ pickups
bellows
phase shifter
cavity coupler
variable power divider
variable H-hybrids
WR650 waveguideload
loads
pressure window
POWER FLOW
Detailed View of 13-cavity LPDS Unit
Power to each ½ cryomodule is fully adjustable via VPD’s without affecting phases.
Unused power can be dumped to the end load.
Each cavity feed line has a phase shifter, isolator w/ bi-directional coupler, and flex guide
NOTE: Variable H-hybrids will change phase as well as amplitude. Adjust this U-bend length to allow phase shifter range to compensate maximum amplitude variation.
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Tunnel End View
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Feeding 3 Stations with 2 Klystrons
WR770 used for long runs.
Extra 23 port network needed at klystron.
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3-dB hybrid
phase shifter
C. Nantista
Simplified 23 Waveguide CircuitEliminates: 2 variable hybrids
3 loads 1 directional coupler
Adds: 1 TControls: 4 signals, 3 knobs 1 signal, 1 knob
Also, allows power of far feed to be varied, rather than that of one of the local feeds.
E-plane T
E-bends
from top:HE ps
from below:HEHH
E~120’ WR770
Bend CountsGallery: E - 6
H - 4To LPDS*:E - 9
H – 3
* including E-jog
E -15H - 7
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Standard Wavegide and Waveguide Components
straight sections E-plane and H-plane bends
T-splitters and magic Ts
folded magic T
Need pressurizable and non-pressurizable versions,for stress relief in upper waveguide runs and at cavities.
semi-flex waveguides
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Isolator and Loads
Newer model includes forward and reflected pick-ups, eliminating the need for a separate bi-directional coupler (reflectometer)*.
S.P.A. Ferrite, Ltd. (Russia)
water cooled (2 types)Ppk Pav
2 MW 10 kW5 MW 100 kW* But costed as separate components
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SLAC Air-to-Air Pressure Window
High power tested up to 3 MW, 1 ms.
Ceramic Plug Pressure Window
Bi-Directional Couplers(Reflectometers)
May be largely eliminated by use of isolators with built-in pick-ups.
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Phase ShiftersDESY/SPA Ferrite KEK/Toshiba
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KEK Variable H-Hybrid (Power Divider)
Variable H-hybrid geometry, sample field pattern and in-line port design modification. Moving the two suspended conductors in and out perturbs the relative phase between the two modes supported in the interior section while retaining match, resulting in a varying power split at the output ports.
Sergey Kazakov
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U-Bend Phase Shifter
C. Nantista
= 2 U-bend phase shifters + 2 folded magic-Ts
SLAC Variable Power Divider
(VPD)
simulation field plot
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XFEL PDS:
2013.07.09 ILC - TB HLRF PDS Study (M. Ross)
XFEL – Mega: ~ 7K$ / cavity
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• Three kinds of parts:1. Catalog items (cost basis from Mega/Furukawa; LC=0.95)
(modification may be required for pressurization)
2. Loads / Circulators (cost basis SPA Ferrite – St. Petersburg; same LC)
3. SLAC / KEK in-house designs with integrated electro-mechanical actuator; based on WR650 hardware (cost basis from first article; same LC)
TDR cost distribution for the above three kinds: 27% 29% 44% (including K-PDS)
Industrial Study:31% 28% 41%
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ILC PDS:
2013.07.09 ILC - TB HLRF PDS Study (M. Ross)
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Assume all LPDS’s like standard ML – klystron feeding 39 cavities:Nc = # of cavities = 16,024ITEM FORMULA QUANTITYIsolator -NP Nc 16,024Semi-Flex guide -NP Nc 16,024Semi-Flex guide -P 3*Nc/13 3,698 Reflectometer -NP Nc 16,024Reflectometer -P 2*Nc/39 822Phase Shifter -NP Nc 16,024Phase Shifter -P Nc/39 411Pressure window -P 3*Nc/13 3,698 1 MW load -P 3*Nc/13 3,6985 MW load -P Nc/13 1,233U-bend Phase Shifter -P 6*Nc/13 7,396Folded magic-T -P 6*Nc/13 7,396Variable hybrid -NP 10*Nc/13 12,3263-dB Hybrid -P Nc/39 411E-plane shunt T -P Nc/39 411E-plane bend -P 15*Nc/39 6,163H-plane bend -P 7*Nc/39 2,876H-plane bend -NP Nc+3*Nc/1319,722E-plane U-bend -NP Nc 16,024 WR650-770 converter -P 2*Nc/39 822WR770 straight 120’ -P Nc/39 411WR650 straight 4’ -P 10*Nc/39 4,109WR650 straight 8’ -P 7*Nc/39 2,876WR650 straight 12’ -P 6*Nc/39 2,465WR650 straight 3’ -NP 9*Nc/39 3,698WR650 straight 8” -NP 27*Nc/39 11,093
Nut/bolt/washers 10*(tot+Nc) 1,918,790
ILC Industrialization
Study Part Count
C. Nantista 1/30/14
-P = pressurizable-NP = non-pressurizable
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The goal of this study is to investigate, quantify and develop an optimized technical scheme and production plan for the ILC HLRF-PDS. The plan should assume production of (25, 50, 100%) of the total Main Linac HLRF-PDS, over the course of 6 years with an additional 2 years allowed beforehand for facility development and proof, if needed. The study should study the best means of sharing the responsibility between industry and laboratories, and specify sub-assemblies that are prime candidates for subcontracting or further manufacturing optimization based on the quantities involved. The results of this study will include plant layouts, time planning for equipment and labor, work flow diagrams, and costs for the industrial components of plan estimated at 2013 prices and rates. Differences from current practice should be specified and supported, and opportunities for R&D to further increase the manufacturability noted.
Industrial Cost Study of Americas Region Power Distribution Manufacturing for the ILC
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• Four possible Contract Options:– Line Item 1 – Full Production / Full System– Line Item 2 – Full, one Half and one Quarter
Production / Full System– Line Item 3 – Full Production / Standard Components
Only– Line Item 4 –Full, one Half and one Quarter Production/
Standard Components Only
Will negotiate with contractor for cost / schedule. Hope for 2013.12 delivery. Limited resources: Plan for Marx Study too
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Cost Study Options (after 2011 / 2012 TDR)
2013.07.09 ILC - TB HLRF PDS Study (M. Ross)
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– Plant equipment requirements, including building, technical equipment, and layout of equipment in building. Costs, in 2013 dollars, to create such a facility, and time required to build, prepare, and prove the plant is ready for production.
– A production plan, including labor and machine hours required.– Identification of the top 3 throughput bottlenecks in the plant,
and the remedy for each.– Analysis of alternatives for each production step, and
identification of the top 3 alternatives which should be pursued with R&D to have the greatest economic effect on the producton.
Specific Report items (1):
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– Identification of components or subcomponents that are prime candidates for subcontracting, including description of existing companies that could fulfill such roles or a description of an industry where such subcontracting should be pursued.
– Identification of production process requirements or component tolerances which are particularly burdensome economically, and possible remedies for such.
– Identification of the practices that are best suited to be conducted by a hub Laboratory, the reasoning for the choice, and a description of the technical criteria that would define such a handoff.
Specific Report items (2)
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Work Stations:AssemblyBlendingBrazingManual MillsClean / MaskCompressionConvoluterCopper PlateElectrical TestEMMEGIFinal InspectionForming / WeldHeat TreatIn-Process Insp
630MM HMC
630MM VMC
1,000MM HMC
Pack / Ship
Paint
Pressure Test
Rinse
Router
Saws
Silver Plate
Solder
300MM Lathe
Autowelder
TIG Welder
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Example: Auto-welder
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The following Project Timeline captures the major milestones of the facility build out and ramp up to meet the production demand timeline.
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Commodity Pricing:
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Top 3 Processes:
• Machining• Welding• Testing (to be shared with hub – lab)
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Development to be considered
• Integration of special components– Electromechanical devices, typ. SLAC / KEK designs
• Extrusion• Casting• Testing automation
May provide 20 to 30% cost reduction
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Summary
• Industrialization study of ‘non-high-tech’ components (PDS) completed March 2014– US PDS industry is based in small-business
• Substantial cost-reduction (~1% of ILC total) practical with nominal R&D investment