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. Author manuscript; available in PMC: 2013 Sep 1.
Published in final edited form as: Magn Reson Med. 2011 Dec 12;68(3):980–988. doi: 10.1002/mrm.23280

Figure 4.

Figure 4

(a) Theoretical (solid, black) and experimental (colored) absolute SNR [ml-1 Hz1/2] on the axial whip junction plane of the λc/4 length loopless antennae in 0.35% saline at 3T, and (b) 7T. The experimental data are plotted with 10% tolerance. (blue, 50,000; green 100,000; red, 200,000; purple, 400,000; cyan, 800,000 ml-1 Hz1/2). Theoretical absolute SNR [ml-1 Hz1/2] along the long axis of the antenna is plotted in (c, 3T) and (d, 7T). (e) Axial B1+ map at the whip junction, and (f)B1+ profile along the dotted line in (e) at 7T. B1+ varies by ∼80%.