摘要 |
Methods, systems, assemblies, computer program products and devices produce hyperpolarized gas by: (a) heating a target gas in an optical pumping cell, the optical pumping cell having opposing top and bottom portions; (b) polarizing the target gas in the optical pumping cell; (c) directing heated polarized gas to flow out of the top portion of the optical pumping cell to a storage reservoir, the storage reservoir having a temperature that is less than the temperature of the heated target gas flowing out of the optical pumping chamber; and (d) flowing previously polarized gas from the reservoir into the optical pumping cell. |