Accumulation of Hydrogen Atoms in a Low Temperature Storage Cell of a Polarized Hydrogen Gas Jet Source
Immediately after the first successful experimental low temperature stabilization of polarized atomic hydrogen it was proposed [1,2] to employ this technique for the creation of an intensive low velocity atomic hydrogen beam with a narrow velocity distribution. The beam will be formed by microwave-induced extraction of stored HJ-atoms from a low temperature (T < 0.5 K) stabiIization cell (SC), which is placed in a high magnetic field (B ~ 10 T). This method was experimentally demonstrated up to a flux of extracted atoms of ~1015 s-1 . A further improvement of this value requires a detailed study if the processes of high effective transport of H-atoms to the SC and an effective microwave extraction. Although ESR-technique in principle allows to pump into a certain nuclear polarized state, due to spin exchange processes the extracted beam is expected to be a mixture of both upper hyperfine states .
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