Published August 22, 1988
| Version v1
Journal article
Evaporative cooling of spin-polarized atomic hydrogen
Creators
- 1. Department of Physics and Center for Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
Description
A gas 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 x 10/sup 12/ cm/sup -3/. 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
Additional details
Publishing Information
- Journal Title
- Phys. Rev. Lett.
- Journal Volume
- 61
- Journal Issue
- 8
- Series
- Phys. Rev. Lett.
- Journal Page Range
- 935-938
- ISSN
- 0031-9007
- CODEN
- PRLTA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 19096561
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Descriptors DEI
- ATOMS; DENSITY; EVAPORATIVE COOLING; HYDROGEN; HYPERFINE STRUCTURE; MAGNETIC FIELDS; RELAXATION; SPIN ORIENTATION; TRAPPING; ULTRALOW TEMPERATURE
- Descriptors DEC
- COOLING; ELEMENTS; NONMETALS; ORIENTATION; PHYSICAL PROPERTIES