Title:

Setup and Installation of an 8T Magnet and 1.5K Cryostat System for Dynamic Nuclear Polarization

Magnets and cryostats, when combined, can be utilized in experimental nuclear physics to polarize target materials. We are commissioning an 8T magnet with liquid helium cooling and a nitrogen jacket for this purpose. This cryostat has space for a target that can reach temperatures of 1.9K. The cryostat was originally used at the Thomas Jefferson National Accelerator Facility (J-Lab) in Newport News, Virginia, and was not in working condition when it was brought to UNH. The commissioning process includes separating the cryostat, replacing old heating and thermometry, repairing connections, and creating a computer interface to take measurements and control the heater, cryogen levels, and power. This system, along with an extended interaction oscillator (EIO) microwave generator and a target stick, will allow us to enhance the polarization of target material with a technique called Dynamic Nuclear Polarization (DNP).

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