METHODS, SYSTEMS, CIRCUITS, AND COMPUTER PROGRAM PRODUCTS FOR DETERMINING POLARIZATION OF A GAS

摘要

A system for determining polarization of a gas comprises a container (140) that contains the polarized gas. An oscillator circuit comprises an NMR coil (21) that is positioned adjacent to the container. A pulse generator circuit (120) is configured to generate an electrical pulse that may be transmitted to the optical cell through the NMR coil to excite the polarized gas responsive to a control processor. A Q-reduction circuit (125) that is independent of the pulse generator circuit is configured to reduce oscillations in the oscillator circuit from the transmitted electrical pulse responsive to the control processor. A receive circuit (130) is responsive to an electrical signal that is induced in the oscillator circuit due to the electromagnetic excitation of the polarized gas. The control processor is configured to determine the polarization of the gas based on the output signal of the receive circuit. A polarimetry circuit for determining polarization of a gas includes an NMR coil that may be configured to excite a polarized gas and be responsive to an electromagnetic signal generated by the excited, polarized gas.