Production of Mesons by the 184-inch Berkeley Cyclotron Part I. Experimental Arrangement

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The authors have observed traks which they believe to be due to mesons in photographic plates placed near a ta5rget bombarded by 380 Mev alpha particles. The plates used were Ilford Nuclear Research Plates, type C.2. the identification of the particles responsible for the tracks was first made on the basis of the appearance of the tracks; they show the same type of scattering and variation of grain density with residual range found in cosmic ray meson tracks and about two-thirds of them produce observable stars at the end of their range. For a 10-minute exposure in the cyclotron, about ... continued below

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Gardner, Eugene & Lattes, C.M.G. April 1, 1948.

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The authors have observed traks which they believe to be due to mesons in photographic plates placed near a ta5rget bombarded by 380 Mev alpha particles. The plates used were Ilford Nuclear Research Plates, type C.2. the identification of the particles responsible for the tracks was first made on the basis of the appearance of the tracks; they show the same type of scattering and variation of grain density with residual range found in cosmic ray meson tracks and about two-thirds of them produce observable stars at the end of their range. For a 10-minute exposure in the cyclotron, about 50 meson tracks are found along the 3-inch edge of a photographic plate. Carbon, beryllium, copper, and uranium have been used so far as target materials, and all are found to give mesons. When a carbon target was bombarded with 300 Mev alpha particles, mesons were found but with reduced yield.

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  • Oral presentation, Washington meeting of the American Physical Society, Washington D.C., April 29-May 1, 1948

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  • Report No.: UCRL-80
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 974176
  • Archival Resource Key: ark:/67531/metadc926627

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  • April 1, 1948

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  • Nov. 13, 2016, 7:26 p.m.

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  • Nov. 18, 2016, 4:12 p.m.

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Gardner, Eugene & Lattes, C.M.G. Production of Mesons by the 184-inch Berkeley Cyclotron Part I. Experimental Arrangement, article, April 1, 1948; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc926627/: accessed November 13, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.