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DNP of 15NH3

  • B. van den Brandt
  • J. A. Konter
  • S. Mango
  • M. Weßler

Abstract

For the measurement of the analyzing power Ay in π+15 N elastic scattering at the PSI meson facility we have operated a 15NH3 polarized target on the π M1 channel for an extended period of time. The experimental set up allowed to measure in parallel the analyzing power A y in π+p scattering, for which good experimental data were already available. During the experiment the 15N polarization has been monitored continuously, and its value has been determined from the 15N TEP signal at 1.02 K, with an estimated error Δ P/P ~ ± 5%, using the PSI-NMR system, described elsewhere in these proceedings [1]. Initially, the proton polarization has been deduced from the measured 15N polarization under the assumption that the two nuclear spin systems in the sample were in thermal equilibrium [2].

Keywords

Elastic Scattering Dilution Refrigerator Paul Scherrer Institute Relative Measurement Error Previous Experimental Data 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    M. Weßler et al., these proceedings.Google Scholar
  2. 2.
    G.R. Court and W.G. Heyes, NIM A243 (1986) 37–40.CrossRefADSGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1991

Authors and Affiliations

  • B. van den Brandt
    • 1
  • J. A. Konter
    • 1
  • S. Mango
    • 1
  • M. Weßler
    • 1
  1. 1.Paul Scherrer InstituteVilligen PSISwitzerland

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