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Manganese-53: Development of the AMS technique for exposure-age dating applications

Journal Article


Abstract


  • The cosmogenic isotope53Mn is produced by spallation of iron in surface rocks. The long half life of this isotope makes it attractive for use in erosion rate studies in slowly eroding landscapes such as Australia. We describe the development of AMS methods for detection of53Mn using the 14UD accelerator at the Australian National University. The first step of this development involved the production of53Mn using a heavy-ion fusion-evaporation reaction to make test standards. Then, the chemistry protocol for isolating53Mn and reducing the Cr levels, of which53Cr is a serious interfering isobar, was developed. Lastly we employed a gas-filled magnet which was used to discriminate53Mn from the intense53Cr background. © 2007 Elsevier B.V. All rights reserved.

Authors


  •   Gladkis, L (external author)
  •   Fifield, Keith (external author)
  •   Morton, Craig J. (external author)
  •   Barrows, Tim T.
  •   Tims, Stephen (external author)

Publication Date


  • 2007

Citation


  • Gladkis, L., Fifield, K., Morton, C., Barrows, T. & Tims, S. (2007). Manganese-53: Development of the AMS technique for exposure-age dating applications. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 259 (1), 236-240.

Scopus Eid


  • 2-s2.0-34248138833

Number Of Pages


  • 4

Start Page


  • 236

End Page


  • 240

Volume


  • 259

Issue


  • 1

Abstract


  • The cosmogenic isotope53Mn is produced by spallation of iron in surface rocks. The long half life of this isotope makes it attractive for use in erosion rate studies in slowly eroding landscapes such as Australia. We describe the development of AMS methods for detection of53Mn using the 14UD accelerator at the Australian National University. The first step of this development involved the production of53Mn using a heavy-ion fusion-evaporation reaction to make test standards. Then, the chemistry protocol for isolating53Mn and reducing the Cr levels, of which53Cr is a serious interfering isobar, was developed. Lastly we employed a gas-filled magnet which was used to discriminate53Mn from the intense53Cr background. © 2007 Elsevier B.V. All rights reserved.

Authors


  •   Gladkis, L (external author)
  •   Fifield, Keith (external author)
  •   Morton, Craig J. (external author)
  •   Barrows, Tim T.
  •   Tims, Stephen (external author)

Publication Date


  • 2007

Citation


  • Gladkis, L., Fifield, K., Morton, C., Barrows, T. & Tims, S. (2007). Manganese-53: Development of the AMS technique for exposure-age dating applications. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 259 (1), 236-240.

Scopus Eid


  • 2-s2.0-34248138833

Number Of Pages


  • 4

Start Page


  • 236

End Page


  • 240

Volume


  • 259

Issue


  • 1