Operation of a microwave proton source in pulsed mode

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Initial beam operation of the cw radio-frequency-quadrupole (RFQ) built for the Low Energy Demonstration Accelerator (LEDA) project requires the injection into the RFQ of a 75-keV, pulsed, H{sup +} beam with a rise and fall time less than 10 microseconds and a pulse width from 0.1 to 1 millisecond at a repetition rate up to 10 Hz. The ion source for the accelerator is a microwave proton source driven by a 2.45-GHz magnetron. Pulsed beam for the RFQ is accomplished by modulation of the magnetron tube current. The magnetron provides microwave pulses to the ion source, and a medium-bandwidth, extraction ... continued below

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3 p.

Creation Information

Zaugg, T.; Rose, C.; Schneider, J.D.; Sherman, J. & Stevens, R. Jr. December 31, 1998.

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Description

Initial beam operation of the cw radio-frequency-quadrupole (RFQ) built for the Low Energy Demonstration Accelerator (LEDA) project requires the injection into the RFQ of a 75-keV, pulsed, H{sup +} beam with a rise and fall time less than 10 microseconds and a pulse width from 0.1 to 1 millisecond at a repetition rate up to 10 Hz. The ion source for the accelerator is a microwave proton source driven by a 2.45-GHz magnetron. Pulsed beam for the RFQ is accomplished by modulation of the magnetron tube current. The magnetron provides microwave pulses to the ion source, and a medium-bandwidth, extraction power supply produces the H{sup +} ion beam using a four-electrode extractor. A similar ion source with a three-element extractor operating at 50 kV has also been tested with this magnetron modulator. The authors report the results of modulating the ion-source microwave power and extracting a pulsed proton beam using both a triode and a tetrode extractor.

Physical Description

3 p.

Notes

INIS; OSTI as DE99002319

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  • 19. international linac conference, Chicago, IL (United States), 23-28 Aug 1998

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  • Other: DE99002319
  • Report No.: LA-UR--98-3513
  • Report No.: CONF-980827--
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 335201
  • Archival Resource Key: ark:/67531/metadc674337

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  • December 31, 1998

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • March 10, 2016, 1:33 p.m.

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Zaugg, T.; Rose, C.; Schneider, J.D.; Sherman, J. & Stevens, R. Jr. Operation of a microwave proton source in pulsed mode, article, December 31, 1998; New Mexico. (digital.library.unt.edu/ark:/67531/metadc674337/: accessed August 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.