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. Author manuscript; available in PMC: 2016 Jun 1.
Published in final edited form as: Magn Reson Med. 2014 Jul 7;73(6):2363–2375. doi: 10.1002/mrm.25335

Figure 3.

Figure 3

Circuit schematic for coil elements with a long coaxial cable that allows placement of the preamplifier outside the PET FOV. In order to maintain a λ/2 phase shift, a pi phase shifter is located before the preamplifier chain.