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. Author manuscript; available in PMC: 2009 Jun 3.
Published in final edited form as: Appl Magn Reson. 2009;35(2):285–318. doi: 10.1007/s00723-008-0162-0

Fig. 2.

Fig. 2

Radio frequency magnetic field energy density profile at sample center and LGR axis as predicted by Ansoft HFSS. Solid line indicates eigenmode (no iris) solution. Short dashes indicate conventional iris and long dashes long iris. a Iris and LGR dimensions shown in Tables 1 and 2. b LGR and iris dimensions modified from those in Tables 1 and 2 to reduce differences in match frequency with and without sample as described in Sect. 3.4. Modified dimensions: LGR inner loop diameter 0.467 mm, outer loop diameter 3.81 mm, long iris width 1.00 mm.