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Introduction of SNS Extraction Kicker Power Supply

Introduction of SNS Extraction Kicker Power Supply. Jianlin Mi June 21, 2001. Design Description. There are 14 kicker pulse power supplies driving 14 magnets located at a long straight section (section D) The Kicker Power Supply will be operated at a 60 Hz repetition.

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Introduction of SNS Extraction Kicker Power Supply

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  1. Introduction of SNSExtraction Kicker Power Supply Jianlin Mi June 21, 2001 Introduction of SNS Extraction Kicker Power Supply

  2. Design Description There are 14 kicker pulse power supplies driving 14 magnets located at a long straight section (section D) The Kicker Power Supply will be operated at a 60 Hz repetition. The kicker modulator provides a fast pulse current to kick the beam out of the ring in a 250 nS beam gap. A 750nS pulse flat top period is required. Introduction of SNS Extraction Kicker Power Supply

  3. Kicker Power Supply Design Parameter • Kicker 14 • kicker inductance • magnet current • High voltage • pulse rise time • pulse width • Pulse repetition Introduction of SNS Extraction Kicker Power Supply

  4. EXTRACTION SYSTEM LAYOUT DIAGRAM Introduction of SNS Extraction Kicker Power Supply

  5. Kicker Power Supply Diagram Introduction of SNS Extraction Kicker Power Supply

  6. Kicker PFN Simulation Circuit Introduction of SNS Extraction Kicker Power Supply

  7. Kicker PFN Simulation Current Waveform Introduction of SNS Extraction Kicker Power Supply

  8. Blumlein PFN Tank Design and Parts • CX1925 thyratron as the high voltage switch • high voltage oil capacitor • high power ceramic disc resistor • lower impedance • Two PFN in series • 15 LC sections/PFN • Each PFN impedance 6.25  • Silicon liquid as dielectric materiel Introduction of SNS Extraction Kicker Power Supply

  9. EEV HV = 80kV Peak current 15 kA repetition 2k Hz Life time ~3 year EEV Thyratron CX1925 Introduction of SNS Extraction Kicker Power Supply

  10. HIGN VOLTAGE CAPACITOR • 5nF/1nF • 10nH inductance • 50 KV/50% reversal V • Peak current 10kA Introduction of SNS Extraction Kicker Power Supply

  11. High Energy Disk Resistors • HVR Advanced Power Components • High Surge Energy 110kJ • High voltage(28.3kV) • Low Inductance • 10 Disk ( 2.5 Ohm) resistors Introduction of SNS Extraction Kicker Power Supply

  12. Blumlein PFN Tank Introduction of SNS Extraction Kicker Power Supply

  13. PFN SCHMETIC Introduction of SNS Extraction Kicker Power Supply

  14. Charging Power Supply Cabinet • Pulse capacitor charging power supply • Thyratron filament and reservoir power supply • Thyratron grid and bias • Trigger generator control unit • Status control • Control interface Introduction of SNS Extraction Kicker Power Supply

  15. Charging Power Supply Cabinet( continue) • 50 kV Capacitor Charging P.S. (ALE802) • Thyratron Bias and Prime • Filament and Reservoir Driver • PS Control Box • Control Interface • Trigger Generator Introduction of SNS Extraction Kicker Power Supply

  16. HV Charging Power Supply • 50 kV, 8kW • Charging Rate 8kJ/sec • Charging Load Capacitance 90 nF • Charging Time 13 mS( 35kV) • Repetition 60 Hz Introduction of SNS Extraction Kicker Power Supply

  17. Trigger Generator Introduction of SNS Extraction Kicker Power Supply

  18. Pulse Delay Generator Introduction of SNS Extraction Kicker Power Supply

  19. Conclusion • PFN • Design Complete • PFN Tank • Parts, Cap • Charging Power Supply • HV power supply 802 • DG535 • Trigger • Station driver • protection Introduction of SNS Extraction Kicker Power Supply

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