RF Power Amplifiers in International Partnership - Development and Contribution Overview
The collaboration between various international partners such as India/DAE, Italy/INFN, UK/STFC, France/CEA/Irfu, CNRS/IN2P3, under the leadership of James Steimel, involves the in-kind contribution of RF power amplifiers for accelerator applications. Partners like DAE/BARC and DAE/RRCAT exhibit significant experience and have developed prototype amplifiers for evaluation. Deliverables include a range of RF power amplifiers for different sections of the PIP-II project, with specific frequency and power requirements. The project emphasizes development oversight, validation processes, integration at Fermilab, and risk management strategies.
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In-kind Contribution: RF Power Amplifiers In partnership with: India/DAE Italy/INFN UK/STFC France/CEA/Irfu, CNRS/IN2P3 James Steimel P2MAC 26-28 March 2018
Outline: International Status and Strategy Partners capabilities Deliverables Development oversight Validation at Partner s site Validation at Fermilab Integration in PIP-II Critical systems redundancy plans Risk management approach 2 26-28 March 2018 James Steimel | In-kind Contribution: RF Power Amplifiers
Partners Capabilities DAE/BARC Considerable experience in design, construction, and operation of RF power sources for accelerator applications. About 10 engineers- programmers working in RF power group at BARC. A working, prototype 3kW, 325 MHz amplifier sent to FNAL for evaluation. A working, prototype 7kW, 325 MHz amplifier completed at BARC. BARC contracting ECIL for production versions. 325 MHz, 7 kW Solid State Amplifier at BARC 3 26-28 March 2018 James Steimel | In-kind Contribution: RF Power Amplifiers
Partners Capabilities DAE/RRCAT Considerable experience in design, construction, and operation of RF power sources for accelerator applications. About 7-8 engineers/programmers working in the RF power group at RRCAT. A working, prototype 40kW, 650 MHz amplifier completed at RRCAT. RRCAT contracting ECIL for production versions. 650 MHz, 40 kW Amplifier at RRCAT 4 26-28 March 2018 James Steimel | In-kind Contribution: RF Power Amplifiers
ECIL ECIL has considerable experience supplying power amplifiers for radar and accelerator applications. 5 26-28 March 2018 James Steimel | In-kind Contribution: RF Power Amplifiers
Deliverables Development Deliverables 9 7kW, 325 MHz RF Power amplifiers for SSR1 at PIP2IT (8 + 1 spare) 8 40kW, 650 MHz RF Power amplifiers for testing full HB650 cryomodule at CMTS (2 may be utilized early for STC and coupler test stand). Construction Deliverables (not yet agreed upon; from BOE assumptions) 8 x 7kW, 325 MHz for 2nd SSR1 37 x 20kW, 325 MHz for SSR2 (35 cavities + 2 spares) 27 x 40kW, 650 MHz for LB650 (33 cavities + 2 spares CMTS) 28 x 70kW, 650 MHz for HB650 (24 cavities + 4 spares) 6 26-28 March 2018 James Steimel | In-kind Contribution: RF Power Amplifiers
PIP-II RF Power Deliverables Freq (MHz) Power (kW) Section Qty Duty Source SSR1 16 325 7 Pulse/CW DAE SSR2 35 325 20 Pulse/CW DAE DAE Deliverables LB650 33 650 40* Pulse/CW DAE HB650 24 650 70 Pulse/CW DAE * Calculations at 2mA show that power margin of some LB650 amplifiers may be too low. There is a possibility of negotiating with IIFC for 55W amplifiers (combining three 20kW units). V. Lebedev, FNAL, The PIP-II Conceptual Design Report 7 26-28 March 2018 Dave Peterson | In-kind Contribution: RF Power Amplifiers
Development Oversight Design process conforms to FNAL Engineering Manual The following documents are required to be approved prior to establishing a contract with the vendor: Functional Requirements and Conceptual Design Interface Control Technical Requirements and Preliminary Design Technical Verification Specification (for amplifier modules and final amplifier) Requirements list the following conforming standards: Workmanship: IPC-A-610E Standards for PCBs: Lead free, IPC-A-600 Environmental standards: ROHS Compliant EMI/EMC standards: IEC-61204-3; IEC61010-1 (safety rules) Vibration standards for transportation only: IEC-61068-27 & 64 8 26-28 March 2018 James Steimel | In-kind Contribution: RF Power Amplifiers
Validation at ECIL Vendor (ECIL) will produce first production model and verify the requirements. This is a production hold point for amplifier construction. FNAL experts and IIFC experts (BARC for 325 MHz and RRCAT for 650 MHz) will witness the testing process and results for the first production model of each type of amplifier. Satisfactory approval of testing process and test results will constitute approval of final design for production. FNAL/BARC will not have final design review prior to construction of first prototype. 9 26-28 March 2018 James Steimel | In-kind Contribution: RF Power Amplifiers
Validation at Fermilab IIFC and ECIL personnel will assist FNAL personnel with assembly of first, production amplifiers on site. Testing will occur in dedicated testing lab (RF Lab in Booster Gallery, Meson Detector Building, New Muon Lab, etc.) or at location of cryomodule if space is ready. Testing unlikely to involve LLRF and RFPI system integration but remote controls integration will be tested. IIFC and ECIL personnel will witness verification tests at FNAL for first production amplifiers. After verification, amplifiers that are not tested in final place will be shipped to temporary storage for later placement. FNAL personnel will continue to assemble and test production amplifiers as delivered from ECIL. 10 26-28 March 2018 James Steimel | In-kind Contribution: RF Power Amplifiers
Integration in PIP-II The PIP-II integration package is still under development. The following points are based on current assumptions. Amplifiers will be re-assembled into place once gallery space is occupational. Circulators and directional couplers will be connected with necessary coaxial hardline. LLRF system, RFPI system, external interlocks, water, AC power, and controls will be connected. Each integrated system will be tested with full power through the circulator and into a load to verify amplifier performance, test interlocks, and verify controls and instruments. Connection of RF distribution to cryomodule couplers is one of last steps of construction in the beam line enclosure. 11 26-28 March 2018 James Steimel | In-kind Contribution: RF Power Amplifiers
Proposed layout ground level, HWR/SSR1 Area HWR block SSR1 block 325MHZ SSR1 LLRF Purple: SCL unassigned racks 162.5MHZ LLRF (WFE+HWR) Beam Red: RF Amp 325 MHz MO station 162.5 MHz MO station 12 26-28 March 2018 Curtis Baffes | In-kind Contribution: RF Power Amplifiers
Proposed layout ground level, SSR2 block SSR2 block One CM 325MHZ SSR2 LLRF (1 of 2 stations) Aisle jogs, Building width maintained Magenta: magnet racks Beige: Beam PLC cabinets 13 26-28 March 2018 Curtis Baffes | In-kind Contribution: RF Power Amplifiers
Proposed layout ground level, LB650 block LB650 block One CM 650MHZ LB650 LLRF (1 of 2 stations) 650 MHz MO station Beam 14 26-28 March 2018 Curtis Baffes | In-kind Contribution: RF Power Amplifiers
Proposed layout ground level, HB650 block HB650 block One CM Aisle jogs, width maintained 650MHZ HB650 LLRF (1 of 2 stations) Beam 15 26-28 March 2018 Curtis Baffes | In-kind Contribution: RF Power Amplifiers
Redundancy Plans 7kW, 325 MHz RF power amplifiers are available on the international market. If BARC successful with construction of 20kW, 325 MHz RF power amplifier, it would be possible to have them modify amplifier design to accommodate 650 MHz and combine outputs for 40kW. Likewise, if RRCAT successful with construction of 40kW, 650 MHz RF power amplifier (already the combination of 20kW units), it would be possible for them to modify 20kW design to accommodate 325 MHz. If no collaborators can produce high power amplifiers, we would look into quotes for IOT based power amplifiers. 16 26-28 March 2018 James Steimel | In-kind Contribution: RF Power Amplifiers
Risk Management Approach Verification Plan All preliminary designs reviewed prior to contract with ECIL. First vendor production unit for each type of amplifier verified on the vendor site. Development phase commissioning experience will feed back on specifications for construction phase deliverables. Risk Register Risk register assumes a moderately high probability (50%) that the amplifiers will require some minor modifications upon delivery with a total cost limit <$500k for the project. Beyond this price level, the amplifiers are assumed to be non- functional and must be returned for re-work. Risk of failure to deliver amplifiers not carried by the project. 17 26-28 March 2018 James Steimel | In-kind Contribution: RF Power Amplifiers
Summary IIFC collaborators and vendors have proven technical expertise in design and construction of solid state power amplifiers. Design reviews and oversight following FNAL Engineering Manual procedures. Collaborators have agreed to comply with international standards for quality and safety. Integration plans are already taking shape. Multiple levels of risk mitigation and exposure reduction have been identified. 18 26-28 March 2018 James Steimel | In-kind Contribution: RF Power Amplifiers
END 19 26-28 March 2018 James Steimel | In-kind Contribution: RF Power Amplifiers
