Electromagnetic Research Division Quarterly Progress Report, Part I for Period Ending June 30, 1952

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From abstract: "On the 86-inch cyclotron a 41-kw beam has been calorimetered at a net ion loading efficiency of 40%; the average proton current was 1.85 ma at 22.5 Mev. Practical specific yields have been determined for (p,2n) reactions on zinc and bismuth. The investigation of products of proton-induced fission of uranium has been continued and new techniques are being used in measuring angular distribution of reaction products. The 63-inch heavy particle cyclotron is now in operation; N+++ particles have been accelerated to ~25 Mev. In preliminary tests, induced activities have been detected in carbon, nitrogen, and oxygen targets. A … continued below

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24 pages : illustrations

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Livingston, Robert S. & Howard, F. T. November 14, 1952.

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From abstract: "On the 86-inch cyclotron a 41-kw beam has been calorimetered at a net ion loading efficiency of 40%; the average proton current was 1.85 ma at 22.5 Mev. Practical specific yields have been determined for (p,2n) reactions on zinc and bismuth. The investigation of products of proton-induced fission of uranium has been continued and new techniques are being used in measuring angular distribution of reaction products. The 63-inch heavy particle cyclotron is now in operation; N+++ particles have been accelerated to ~25 Mev. In preliminary tests, induced activities have been detected in carbon, nitrogen, and oxygen targets. A hot-cathode ion source is ready for test operation. The 22-inch cyclotron is being used in an investigation of the problems associated with the use of rf and dc electrodes for the acceleration of protons from the ion source into the dees. Radiation-induced corrosion in Inconel tubing containing #21 eutectic (ANP) has been produced by proton irradiation in the 86-inch cylclotron; it is shown that the corrosion was not due to thermal effects. Approximately 150 grams of highly purified U 238 (< 5 ppm U 235) have been prepared, and two grams of thorium 230 (ionium) has been enriched to 90.6%."

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24 pages : illustrations

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"Subject Category: Particle Accelerators and High Voltage Machines."

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  • Report No.: ORNL-1345
  • SuDoc Number: Y 3.At 7:22/ORNL-1345
  • Grant Number: W-7405-eng-26
  • Accession or Local Control No: metadc1201257
  • Archival Resource Key: ark:/67531/metadc1201257

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  • November 14, 1952

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  • April 8, 2019, 4 p.m.

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  • July 14, 2020, 2:04 p.m.

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Thumbnail image of item number 1 in: 'Electromagnetic Research Division Quarterly Progress Report, Part I for Period Ending June 30, 1952'.
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Livingston, Robert S. & Howard, F. T. Electromagnetic Research Division Quarterly Progress Report, Part I for Period Ending June 30, 1952, report, November 14, 1952; Oak Ridge, Tennessee. (https://digital.library.unt.edu/ark:/67531/metadc1201257/: accessed November 10, 2025), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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