Skip to main content
Log in

Open access birdcage coils for microscopic imaging of plants at 11.7T

  • Published:
Magnetic Resonance Materials in Physics, Biology and Medicine Aims and scope Submit manuscript

Abstract

The use of a U-shaped high-pass birdcage coil for microscopic imaging at 11.7 T has been investigated. The study was motivated by the requirement for a side access coil, permitting higher filling factors for the in-vivo imaging of plant petioles and stems. The performance of a U-shaped coil (with a cross section consisting of a 16 mm diameter semi-circle plus two 12 mm length straight sections) has been experimentally assessed, and compared both in terms of homogeneity and sensitivity to a 16 mm diameter conventional (linear) birdcage and a saddle coil of the same diameter. The U-shaped coil, which offers 12 mm width side access, has a significantly better performance than the saddle coil, whilst providing 57% of the B1 sensitivity of the bird-cage.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Hayes CE, Edelstein WA, Schenck JF, et al. An efficient, highly homogeneous radio-frequency coil for whole-body NMR imaging at 1.5 T. J Magn Reson 1985;63:622–8.

    CAS  Google Scholar 

  2. Gasson J, Summers IR, Fry ME, et al. Modified birdcage coils for targeted imaging. Magn Reson Imag 1995;13:1003–12.

    Article  CAS  Google Scholar 

  3. Joseph PM, Saadi-Elmandjra MJ. Electric field measurements in cylindrical imaging coils. J Magn Reson 1987;75:199–212.

    Google Scholar 

  4. Crozier S, Luescher K, Forbes LK, et al. Optimised small-bore, high-pass resonator designs. J Magn Reson [B] 1995;109:1–11.

    Article  CAS  Google Scholar 

  5. Ginsberg DM, Melchner MJ. Optimum geometry of saddle shaped coils for generating a uniform magnetic field. Rev Sci Instr 1970;41:122–3.

    Article  Google Scholar 

  6. Mansfield P, McJury M, Glover P, et al. RF cavity resonator and split-resonator designs. Magn Reson Med 1991;17:10–4.

    Article  PubMed  CAS  Google Scholar 

  7. Talagala SL, Gillen J. Experimental determination of three-dimensional RF magnetic field distribution of NMR coils. J Magn Reson 1991;94:493–500.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Richard W. Bowtell.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Hudson, A.M.J., Köckenberger, W. & Bowtell, R.W. Open access birdcage coils for microscopic imaging of plants at 11.7T. MAGMA 10, 69–74 (2000). https://doi.org/10.1007/BF02601840

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02601840

Keywords

Navigation