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. Author manuscript; available in PMC: 2015 Mar 1.
Published in final edited form as: J Magn Reson. 2014 Jan 21;240:45–51. doi: 10.1016/j.jmr.2013.12.015

FIGURE 1.

FIGURE 1

Alderman-Grant/Loop-Gap resonator. A. Assembled view; B. Exploded view without support structure. Nonconductive elements are cut by vertical plane for better visualization. C. Equivalent electrical scheme of resonator with tune and match elements. AGR elements: LAGR/2 is the inductance of an I-section, 4CAGR is the capacitance formed between end rings and I-section wings; C' is the added capacitance between I-section wings and RAGR – is the resistance of 4 damping resistors installed between I-section wings. The effective resonating capacitance of AGR is CAGR+C'. This does not include capacitances of the tuning and matching elements. SLSG LGR: LLGR is the inductance of the loop, CLGR is the resonating capacitance and RLGR is resistance of the damping resistor. CT and CM are the tuning and matching capacitors, respectively. Elements located on the tune and match boards are surrounded by dashed line rectangles.