The paper describes a new formula for calculating the mutual inductance between thin conical sheet inductor and filamentary circular loop, which are coaxial in air. presented is derived semi-analytically using complete elliptic integrals of first, second, third kind, along with integral term will be solved numerically. results validated double single integration methods, as well semi-analytical...

Investigating cell cultures with NMR requires high cell densities to provide adequate signal-to-noise, or scans must be summed over long time periods and short-term events are lost. The mixing within a chemostat can be used to shorten the time required to acquire informative in situ NMR spectra from cell cultures. However, performance trade-offs can occur between net signal, spectral resolution...

Introduction: Spectral fat suppressed or water selective imaging (e.g. using 1331 binomial pulses) for large fields-of-view is difficult to achieve, particularly at higher field because of problems in achieving a high-quality shim of the static B0 field. Off resonance effects cause the water and fat resonances to be position dependent, causing water only selection/fat suppression to fail in som...

Introduction The combination of a circularly polarized (CP) volume coil for spin excitation with a multi-channel receive-only array is a successful setup for routine human brain imaging at 7 Tesla. For reception, the use of multiple surface coils is important for a high SNR and for the utilization of parallel imaging techniques. For transmission, the main strength of the CP coil is the reasonab...

We describe the further development of a circularly polarized helmet coil for magnetic resonance imaging (MRI) of the human brain at 3 T. The coil is used in transmit and receive (transceive) mode, a useful alternative over commercially available quadrature headcoils with scanners where phased arrays are unavailable. The coil is simple to build. Its structure is based on an assembly of two copl...