Title:

Designing a Target Insert: The Heart of a Dynamic Nuclear Polarization System

Breakthroughs in nuclear physics experiments have driven advancements in both particle physics and medical imaging, such as MRIs. Dynamic Nuclear Polarization (DNP) enhances the sensitivity of nuclear magnetic resonance (NMR) by using microwave irradiation to transfer the polarization of electron spins to nearby nuclei. This process requires a strong magnetic field (5 Tesla), very low temperatures (~ 1 Kelvin), and microwaves (~140 GHz). This work presents the design of a material insert, a key component in a DNP system, that focuses on efficient cooling of the sample to cryogenic temperatures, maximum microwave transmission, and compatibility across different lab setups. The ongoing work by UNH's Polarized Target Group aims to refine and optimize existing models to further the progress of DNP experiments. This work has the potential to enhance the signal intensities of NMR for future medical applications.

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