PHYSICS DIVISION SUMMARY REPORT FOR DECEMBER 1960

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The operating principle of the tandem Van de Graaff accelerator is discussed. The use and operation of the 4.5Mev Van de Graaff generator are described. An upper limit was set for the observed mean life of the first excited atate of Ca/sup 43/ and a lower limit was set for the partial mean life for decay by E2 transition from the same state. Groups of delayed neutrons from N/sup 17/ precursors were observed at energies of 1.225 and 0.425 Mev, corresponding to BETA decay to 3/2- atates in Oil in agreement with the shell model. An investigation is reported of ... continued below

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Pages: 55

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Creator: Unknown. October 31, 1961.

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Description

The operating principle of the tandem Van de Graaff accelerator is discussed. The use and operation of the 4.5Mev Van de Graaff generator are described. An upper limit was set for the observed mean life of the first excited atate of Ca/sup 43/ and a lower limit was set for the partial mean life for decay by E2 transition from the same state. Groups of delayed neutrons from N/sup 17/ precursors were observed at energies of 1.225 and 0.425 Mev, corresponding to BETA decay to 3/2- atates in Oil in agreement with the shell model. An investigation is reported of the fragmentation of benzene and ethylene with high-energy electrons. The plasma research program is described. The major research described is an experimental study of basic propenties of plasmas produced in homogeneous high-frequency electric fields at low pressure. The doublet splittings in He/sup 5/, N/sup 15/, and Oil (closed shells plus or minus one nucleon) are adequately explained in terms of the combination of the second- order effect due to the tensor force and the firat-order effect due to the L-S potential. (For preceding pericd see ANL-6235.) (W.L.H.)

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Pages: 55

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  • Other Information: Orig. Receipt Date: 31-DEC-61

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  • Report No.: ANL-6262
  • Grant Number: W-31-109-ENG-38
  • DOI: 10.2172/4071771 | External Link
  • Office of Scientific & Technical Information Report Number: 4071771
  • Archival Resource Key: ark:/67531/metadc864370

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Creation Date

  • October 31, 1961

Added to The UNT Digital Library

  • Sept. 16, 2016, 12:32 a.m.

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  • Sept. 22, 2016, 5:20 p.m.

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PHYSICS DIVISION SUMMARY REPORT FOR DECEMBER 1960, report, October 31, 1961; Illinois. (digital.library.unt.edu/ark:/67531/metadc864370/: accessed September 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.