Tensor Polarized Targets at the University of New Hampshire

Dynamic nuclear polarization (DNP) is technique used to enhance the nuclear spin polarization of materials. DNP works by using microwaves to continuously drive spin transitions in a material that is doped with free radicals, and placed inside a 1 K environment in a high magnetic field. Once enhanced, the nuclear polarization can be determined by analyzing the lineshape of the NMR absorption spectrum. This talk will describe the DNP system used at the University of New Hampshire, and explain techniques in inducing high tensor polarization in deuterium. The polarization techniques developed by the University of New Hampshire will be used in a series of Jefferson Lab experiments which require the use of solid cryogenic targets with high tensor polarization, and which seek to measure properties of nuclear spin structure.