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Hyperfine Interactions

, Volume 167, Issue 1–3, pp 905–909 | Cite as

Advances in constant-velocity Mössbauer instrumentation

  • A. VeigaEmail author
  • N. Martínez
  • P. Mendoza Zélis
  • G. A. Pasquevich
  • F. H. Sánchez
Article

Abstract

A prototype of a programmable constant-velocity scaler is presented. This instrument allows the acquisition of partial Mössbauer spectra in selected energy regions using standard drivers and transducers. It can be fully operated by a remote application, thus data acquisition can be automated. The instrument consists of a programmable counter and a constant-velocity reference. The reference waveform generator is amplitude modulated with 13-bit resolution, and is programmable in a wide range of frequencies and waveforms in order to optimize the performance of the transducer. The counter is compatible with most standard SCA, and is configured as a rate-meter that provides counts per selectable time slice at the programmed velocity. As a demonstration of the instrument applications, a partial Mössbauer spectrum of a natural iron foil was taken. Only positive energies were studied in 512 channels, accumulating 20 s per channel. A line width of 0.20 mm/s was achieved, performing with an efficiency of 80%.

Key words

Mössbauer instrumentation spectrometer constant-velocity MCS 

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Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • A. Veiga
    • 1
    Email author
  • N. Martínez
    • 1
    • 3
  • P. Mendoza Zélis
    • 1
    • 2
  • G. A. Pasquevich
    • 1
    • 2
  • F. H. Sánchez
    • 1
    • 2
  1. 1.Departamento de Física–FCEUNLPLa PlataArgentina
  2. 2.IFLPCONICETLa PlataArgentina
  3. 3.CICPBALa PlataArgentina

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