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Overview, Requirements and General Project Planning

Overview, Requirements and General Project Planning. Krzysztof Czuba PRL PDR Lund , 1 5 . 03 .201 7. Project Scope. Design, delivery, installation and commissioning of the Main Phase Reference Distribution System (PRDS) called for simplicity Phase Reference Line (PRL)

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Overview, Requirements and General Project Planning

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  1. Overview, Requirements and General Project Planning Krzysztof Czuba PRL PDR Lund, 15.03.2017

  2. Project Scope • Design, delivery, installation and commissioning of the Main Phase Reference Distribution System (PRDS) called for simplicity Phase Reference Line (PRL) • The Main PRL covers signal distribution from the Master Oscillator output to tap point outputs in the tunnel WUT Contribution PRL Overview and Requirements, K. Czuba

  3. General Design Requirements • Phasereference signal distribution from MO to tap points in the tunnel • Total length in the tunnel: ~581 m. • Number of taps: 56 (Taps have 6 or 3 outputs) • Total number of outputs: 294 • Work under heavy radiation level environment • Fulfill ESS fire safety rules Materials used for the project must be radiation hard and fire safe  Mostly custom components PRL Overview and Requirements, K. Czuba

  4. Signal Frequencies • 352.21 MHz for: • LLRF at RFQ, MEBT, DTL and Spokes • BPM at Medium β, High β, HEBT and A2T • BSM • 704.42 MHz for: • LLRF at Medium β and High β • BPM at LEBT, RFQ, MEBT, DTL and Spokes PRL Overview and Requirements, K. Czuba

  5. Signal Parameter Requirements • Power levels: • input power level: 10 dBm (tbd. no final data received from MO designer), • output power levels: +15 dBm (±2 dB), i.e. +13 dBm…17 dBm. • Harmonics: -60 dBc • Phase noise: • < -70 dBc/Hz @1 Hz – 100 kHz (more detailed specification was not given) • Phase stability requirements (@ the same reference frequency): • phase drift between neighboring outputs: 0.1° • phase drifts between any PRL outputs: 2.0° • short-term (during one RF pulse: ~3.5 ms): 0.1° PRL Overview and Requirements, K. Czuba

  6. Main PRDS Design Assumptions • Passive synchronization scheme with pick-up cables from RF cavities and BPM/LBMs paired and length-matched to corresponding reference cables from PRDS • Two phase reference sinusoidal signals: 352.21 MHz and 704.42 MHz distributed along the accelerator • One physical structure used to distribute both frequencies at a time PRL Overview and Requirements, K. Czuba

  7. General Concept of the PRDS Main PRDS Includes the Main Phase Reference Line and Tap Points (see talk by Mateusz Żukociński for details) • Auxiliary systems: • Temperature control • Air pressure and humidity control • Monitoring • See talks by R. Papis and W Wierba Local PRDS – out of WUT scope PRL Overview and Requirements, K. Czuba

  8. PRDS Functional Concept and Interfaces ICS Interface Interface to MO Interface to Local PRDS PRL Overview and Requirements, K. Czuba

  9. General Project Schedule Data from IKCA: update required, see “Manufacturing and installation planning” talk by K.Czuba PRL Overview and Requirements, K. Czuba

  10. Thank you for attention! PRL Overview and Requirements, K. Czuba

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