Advanced studies of cooperative phase transitions in microgravity

Details Advanced studies of cooperative phase transitions in microgravity Advanced studies of cooperative phase transitions in microgravity

Jul 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993adspr..13...61l&link_type=abstract

Advances in Space Research, Volume 13, Issue 7, p. 61-71.

Physics

2

Scientific paper

For the past 17 years we have been developing new technology to resolve cooperative phase transitions to the level of t = ¦T/Tc-1¦ ~ 10-10, where T is the temperature and Tc that of the transition. Samples of helium near the lambda point (2.1768 K) in microgravity conditions are expected to exhibit transitions at least this sharp. Currently we are approaching the launch of an experiment to measure the heat capacity singularity through the lambda transition with a resolution of about 4×10-10. This experiment involves an instrument developed by Stanford that will be flown in the JPL Low Temperature Research Facility. In this paper we describe the hardware for this program and some additional flight experiments that are currently being considered.

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