3 He melting curve thermometry in a nuclear polarization experiment


Journal Article

Temperature measurement and control are important in brute force polarization experiments. We discuss the installation and use of3He melting curve thermometers in a crystat used to polarize a TiH2 target. Comparison is made between the melting curve thermometers and the60CoCo nuclear orientation thermometer, which is often used in such experiments. The melting curve thermometers provide increased temperature resolution and sensitivity, and were used in a feedback heating system to control temperature to ±5.5 μK at 16.5 mK. The3He melting curve and the60CoCo temperature scales are found to agree within 2% at 15 mK. The present status of the melting curve scale and the effect of a magnetic field on melting curve thermometry are also discussed. © 1992 J.C. Baltzer A.G., Scientific Publishing Company.

Full Text

Duke Authors

Cited Authors

  • Keith, CD; Gould, CR; Haase, DG; Roberson, NR; Tornow, W; Wilburn, WS

Published Date

  • November 1, 1992

Published In

Volume / Issue

  • 75 / 1-4

Start / End Page

  • 525 - 532

Electronic International Standard Serial Number (EISSN)

  • 1572-9540

International Standard Serial Number (ISSN)

  • 0304-3843

Digital Object Identifier (DOI)

  • 10.1007/BF02399008

Citation Source

  • Scopus