Abstract :
A germanium resistance thermometer having high sensitivity and exceptional stability in the temperature range near absolute zero has been developed by J. E. Kunzler, T. H. Geballe, and G. W. Hull of Bell Telephone Laboratories, located at 463 West St., New York, N.Y. Once calibrated, this thermometer is reproducible to better than a few ten thousandths of a degree at the boiling point of helium (4.2 degrees K) even after repeated cycling from room temperature. Such characteristics indicate that this thermometer might be useful for the accurate measurement of temperatures in outer space, when mounted in a suitable space vehicle.
