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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

Introduction of SNSExtraction Kicker Power Supply

Jianlin Mi

June 21, 2001

Introduction of SNS Extraction Kicker Power Supply

design description
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

kicker power supply design parameter
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

extraction system layout diagram
EXTRACTION SYSTEM LAYOUT DIAGRAM

Introduction of SNS Extraction Kicker Power Supply

kicker power supply diagram
Kicker Power Supply Diagram

Introduction of SNS Extraction Kicker Power Supply

kicker pfn simulation circuit
Kicker PFN Simulation Circuit

Introduction of SNS Extraction Kicker Power Supply

kicker pfn simulation current waveform
Kicker PFN Simulation Current Waveform

Introduction of SNS Extraction Kicker Power Supply

blumlein pfn tank design and parts
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

eev thyratron cx1925
EEV

HV = 80kV

Peak current 15 kA

repetition 2k Hz

Life time ~3 year

EEV Thyratron CX1925

Introduction of SNS Extraction Kicker Power Supply

hign voltage capacitor
HIGN VOLTAGE CAPACITOR
  • 5nF/1nF
  • 10nH inductance
  • 50 KV/50% reversal V
  • Peak current 10kA

Introduction of SNS Extraction Kicker Power Supply

high energy disk resistors
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

blumlein pfn tank
Blumlein PFN Tank

Introduction of SNS Extraction Kicker Power Supply

pfn schmetic
PFN SCHMETIC

Introduction of SNS Extraction Kicker Power Supply

charging power supply cabinet
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

charging power supply cabinet continue
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

hv charging power supply
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

trigger generator
Trigger Generator

Introduction of SNS Extraction Kicker Power Supply

pulse delay generator
Pulse Delay Generator

Introduction of SNS Extraction Kicker Power Supply

conclusion
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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