STRONG MAGNETIC COMPRESSION OF SPIN-POLARIZED HYDROGEN

Fractions of spin-polarized atomic hydrogen gas samples have been comp ressed magnetically from a low-density buffer volume at 0.25 to 0.5 K into the pole gap of a DELTAB almost-equal-to 6 T miniature field inte nsifier. The density of the compressed fraction has been calculated fr om the observed time evolutions of the buffer volume density and nucle ar polarization. It is shown that excessive recombination overheating limits the maximum density to about 2.10(19) cm-3 and thwarts the atta inment of Bose condensation.