TESTING PULSE FORMING NETWORKS WITH DARHT ACCELERATOR CELLS

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The Dual Axis Radiographic Hydrotest Facility [DARHT] at Los Alamos will use two induction linacs to produce high-energy electron beams. The electron beams will be used to generate x-rays from bremsstrahlung targets. The x-rays will be used to produce radiographs. The first accelerator is operational now, generating a 60- nanosecond electron beam. The second accelerator is under construction. It will generate a 2-microsecond electron beam. The 78 induction cells of the second axis accelerator will be driven by an equal number of pulse forming networks. Each pulse forming network [PFN] generates a nominal 200-kV, 2-microsecond pulse to drive an accelerator ... continued below

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1900 Kilobytes pages

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ROSE, E.A.; DALMAS, D.A.; DOWNING, J.N. & TEMPLE, R.D. June 1, 2001.

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The Dual Axis Radiographic Hydrotest Facility [DARHT] at Los Alamos will use two induction linacs to produce high-energy electron beams. The electron beams will be used to generate x-rays from bremsstrahlung targets. The x-rays will be used to produce radiographs. The first accelerator is operational now, generating a 60- nanosecond electron beam. The second accelerator is under construction. It will generate a 2-microsecond electron beam. The 78 induction cells of the second axis accelerator will be driven by an equal number of pulse forming networks. Each pulse forming network [PFN] generates a nominal 200-kV, 2-microsecond pulse to drive an accelerator cell. Each pulse forming network consists of a set of four equal-capacitance sub-PFN's, stacked in a Marx configuration. The PFN Test Stand was configured to test newly constructed accelerator cells under conditions of full voltage and pulse duration. The PFN Test Stand also explored jitter, prefire and reliability issues for a pulse forming network operated into a purely resistive load. The PFN Test Stand provided experience operating a simple subsystem of the DARHT accelerator. This subsystem involved controls, diagnostics, data acquisition and archival, power supplies, trigger systems, core reset and a gas flow system for the spark gaps. Issues for the DARHT accelerator were investigated in this small-scale facility.

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1900 Kilobytes pages

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  • Report No.: LA-UR-01-3112
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 783206
  • Archival Resource Key: ark:/67531/metadc715983

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • June 1, 2001

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  • Sept. 29, 2015, 5:31 a.m.

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  • March 28, 2016, 9:33 p.m.

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ROSE, E.A.; DALMAS, D.A.; DOWNING, J.N. & TEMPLE, R.D. TESTING PULSE FORMING NETWORKS WITH DARHT ACCELERATOR CELLS, article, June 1, 2001; New Mexico. (digital.library.unt.edu/ark:/67531/metadc715983/: accessed October 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.