Development Status of The ILC Marx Modulator Metadata

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  • Main Title Development Status of The ILC Marx Modulator


  • Author: Nguyen, M.
    Creator Type: Personal
  • Author: Beukers, T.
    Creator Type: Personal
  • Author: Burkhart, C.
    Creator Type: Personal
  • Author: Larsen, R.
    Creator Type: Personal
  • Author: Olsen, J.
    Creator Type: Personal
  • Author: Tang, T.
    Creator Type: Personal
    Creator Info: SLAC


  • Sponsor: United States. Department of Energy. Office of Science.
    Contributor Type: Organization
    Contributor Info: US DOE Office of Science (DOE SC)


  • Name: SLAC National Accelerator Laboratory
    Place of Publication: [California]


  • Creation: 2010-06-07


  • English


  • Content Description: The ILC Marx Modulator is under development as a lower cost alternative to the 'Baseline Conceptual Design' (BCD) klystron modulator. Construction of a prototype Marx is complete and testing is underway at SLAC. The Marx employs solid state elements, IGBTs and diodes, to control the charge, discharge and isolation of the modules. The prototype is based on a stack of sixteen modules, each initially charged to {approx}11 kV, which are arranged in a Marx topology. Initially, eleven modules combine to produce the 120 kV output pulse. The remaining modules are switched in after appropriate delays to compensate for the voltage droop that results from the discharge of the energy storage capacitors. Additional elements will further regulate the output voltage to {+-}0.5%. The Marx presents several advantages over the conventional klystron modulator designs. It is physically smaller; there is no pulse transformer (quite massive at these parameters) and the energy storage capacitor bank is quite small, owing to the active droop compensation. It is oil-free; voltage hold-off is achieved using air insulation. It is air cooled; the secondary air-water heat exchanger is physically isolated from the electronic components. This paper outlines the current developmental status of the prototype Marx. It presents a detailed electrical and mechanical description of the modulator and operational test results. It will discuss electrical efficiency measurements, fault testing, and output voltage regulation.
  • Physical Description: 4 pages


  • Keyword: Testing
  • Keyword: Accelerators,Accsys, Eng, Hepex
  • Keyword: Air
  • STI Subject Categories: 43 Particle Accelerators
  • Keyword: Capacitors
  • Keyword: Transformers Accelerators,Accsys, Eng, Hepex
  • Keyword: Efficiency
  • Keyword: Klystrons
  • Keyword: Construction
  • Keyword: Design
  • Keyword: Energy Storage
  • Keyword: Heat Exchangers
  • Keyword: Topology
  • Keyword: Stanford Linear Accelerator Center


  • Conference: Presented at 2008 IEEE International Power Modulator Conference and 28th International Power Modulator Symposium and 2008 High Voltage Workshop (PMC 2008), Las Vegas, Nevada, 27-31 May 2008


  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI


  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article


  • Text


  • Report No.: SLAC-PUB-14113
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 981687
  • Archival Resource Key: ark:/67531/metadc1014483


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