A high volume, batch mode Xe-129 polarizer

作者：Wojna Pelczar Anna^*; Palasz Tadeusz

来源：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment , 2017, 856: 65-71.

DOI：10.1016/j.nima.2017.01.065

• Nuclear polarization
• SEOP polarizer
• Xe-129
• NMR

Numerous designs of optical gas polarizers have been proposed, broadening possible applications of the hyperpolarized gases as contrast agents in magnetic resonance imaging. We present a home-made Xe-129 polarizer based on the spin exchange optical pumping method. The polarizer operates under 1 bar of the gas mixture (at the maximum temperature of 160 degrees C) in a high volume optical cell (5025 cm(3)). Approximately 100 cm(3) of Xe-129 polarized at 1.50 +/- 0.37% is produced in a single cycle of polarization. Operation under standard pressure imposes polarization transfer mainly via van der Waals molecules, resulting in the efficient spin exchange between rubidium and Xe-129 atoms. The design, construction and operation of the polarizer are described in details.

• 出版日期2017-6-1