Performance of the Los Alamos expanding telescope

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An expanding telescope can produce a very low divergence particle beam, provided that the beam optics have sufficient quality in order not to introduce large aberrations. Even as late as two years ago there were no theoretical beamline codes, and little experimental work that could describe the third-order aberrations introduced by an expanding telescope. A project was undertaken at Los Alamos National Laboratory to perform these calculations, and to build a telescope to confirm the predictions. It was installed at Argonne National Laboratory during the summer of 1987 and tested in a 50 MeV H/sup /-// beam. The telescope consisted ... continued below

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Pages: 16

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Dombeck, T.W. January 1, 1988.

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An expanding telescope can produce a very low divergence particle beam, provided that the beam optics have sufficient quality in order not to introduce large aberrations. Even as late as two years ago there were no theoretical beamline codes, and little experimental work that could describe the third-order aberrations introduced by an expanding telescope. A project was undertaken at Los Alamos National Laboratory to perform these calculations, and to build a telescope to confirm the predictions. It was installed at Argonne National Laboratory during the summer of 1987 and tested in a 50 MeV H/sup /-// beam. The telescope consisted of a singlet eyepiece and triplet objective lens with a twenty times magnification. It performed to the design specifications of twenty-five micro-radians beam divergence with a parallel beam focus. The measured geometric aberrations were found to be in agreement with the computer calculations.

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Pages: 16

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NTIS, PC A03/MF A01; 1.

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  • 1. European particle accelerator conference, Rome, Italy, 7 Jun 1988

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  • Other: DE88010924
  • Report No.: LA-UR-88-1476
  • Report No.: CONF-880695-3
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 5020612
  • Archival Resource Key: ark:/67531/metadc1059715

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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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  • January 1, 1988

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  • Jan. 22, 2018, 7:23 a.m.

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  • Feb. 2, 2018, 12:12 p.m.

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Dombeck, T.W. Performance of the Los Alamos expanding telescope, article, January 1, 1988; New Mexico. (digital.library.unt.edu/ark:/67531/metadc1059715/: accessed December 12, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.