@article {924,
	title = {Evaporative cooling of spin-polarized atomic hydrogen.},
	journal = {Physical Review Letters},
	volume = {61},
	year = {1988},
	month = {1988 Aug 22},
	pages = {935-8},
	abstract = {<p>A gas of hydrogen atoms, confined in a static magnetic trap, has been evaporatively cooled to temperatures of a few millikelvin. The initial trap configuration held the gas at 38 mK for as long as 5 h. Evaporative cooling reduced the temperature to 3.0 mK while maintaining the central density at 7.6{\texttimes}10\&nbsp;12\&nbsp;\&nbsp; cm\&nbsp;-3\&nbsp;\&nbsp; . These values were determined by measurement of the rate of electronic spin relaxation and are in agreement with model calculations. Further cooling to 1 mK (inferred from the model) has been achieved. Measurements were made of the efficiency of the evaporative cooling process.</p>
},
	issn = {1079-7114},
	author = {Masuhara, N and Doyle, JM and Sandberg, JC and Kleppner, D and Greytak, TJ and Hess, H F and Kochanski, GP}
}
