Investigation of short-lived PT and PB {alpha} emitters near the proton drip line

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In a series of experiments at the Argonne ATLAS Accelerator Facility, several {alpha} emitters near the proton drip line were produced with fusion evaporation reactions, separated from the beam and dispersed in M/Q with a recoil mass spectrometer, and implanted and studied in a double-sided silicon strip detector. In {sup 78}Kr bombardments of {sup 92}Mo and {sup 96}Ru, the new isotopes {sup 166}Pt and {sup 167}Pt were identified via their {alpha}-decay properties and more accurate half-lives were measured for {sup 169}Pt and {sup 170}Pt. The light isotopes of lead, {sup 180}Pb, {sup 182}Pb, and {sup 184}Pb were produced in Mo ... continued below

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4 p.

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Bingham, C.R.; Wauters, J. & Zimmerman, B.E. November 1, 1996.

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In a series of experiments at the Argonne ATLAS Accelerator Facility, several {alpha} emitters near the proton drip line were produced with fusion evaporation reactions, separated from the beam and dispersed in M/Q with a recoil mass spectrometer, and implanted and studied in a double-sided silicon strip detector. In {sup 78}Kr bombardments of {sup 92}Mo and {sup 96}Ru, the new isotopes {sup 166}Pt and {sup 167}Pt were identified via their {alpha}-decay properties and more accurate half-lives were measured for {sup 169}Pt and {sup 170}Pt. The light isotopes of lead, {sup 180}Pb, {sup 182}Pb, and {sup 184}Pb were produced in Mo bombardments of Zr target nuclei. The {alpha}-decay energies and half-lives of the new isotopes are as follows: (1) {sup 166}Pt, E{sub {alpha}} = 7110(15) keV, T{sub 1/2} = 0.3(1) ms; and (2) {sup 167}Pt, E{sub {alpha}} = 6988(10) keV, T{sub 1/2} = 0. 7(2) ms. Also, the half-life of {sup 168}Pt, which was previously unknown, was determined to be 2.0(4) ms and that of {sup 170}Pt was observed to be 14.7(5) ms. The tentative {alpha}-decay energies and half-lives of the even Pb isotopes are: (1) {sup 184}Pb, E{sub {alpha}} = 6625(10) keV, T{sub 1/2} =500(25) ms; (2) {sup 182}Pb, E{sub {alpha}} = 6895(10) keV, T{sub 1/2} = 62(5) ms; and (3) {sup 180}Pb, E{sub {alpha}} = 7250(15) keV, T{sub 1/2} = 5.8 {sup +2.8}{sub -1.4} ms. The a-decay rates for these Pt and Pb nuclides are compared with earlier measurements and systematic trends of the reduced widths with neutron number are discussed.

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4 p.

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INIS; OSTI as DE97000321

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  • 14. international conference on the application of accelerators in research and industry, Denton, TX (United States), 6-9 Nov 1996

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  • Other: DE97000321
  • Report No.: CONF-961110--7
  • Grant Number: AC05-96OR22464;FG02-96ER40983;FG05-88ER40418;FG05-88ER40407;FG05-84ER40159;W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 406065
  • Archival Resource Key: ark:/67531/metadc676138

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  • November 1, 1996

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  • July 25, 2015, 2:20 a.m.

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  • Jan. 22, 2016, 11:44 a.m.

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Bingham, C.R.; Wauters, J. & Zimmerman, B.E. Investigation of short-lived PT and PB {alpha} emitters near the proton drip line, article, November 1, 1996; Tennessee. (digital.library.unt.edu/ark:/67531/metadc676138/: accessed June 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.