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Improved temperature stability in gas-phase nitrogen refrigerators: use of a copper heat shunt.

Author(s) : HUNT C. J., PEGG D. E.

Type of article: Article

Summary

Recent events have demonstrated a significant risk of transmission of infective agents between samples if storage is carried out by immersion in liquid nitrogen. Unfortunately, gas-phase storage does not provide the same uniformity of temperature, nor as low a temperature as immersion, and this may affect stability during long-term preservation. The paper describes a copper heat shunt that is compatible with existing gas-phase inventory systems. Additionally, the heat shunt reduces fluctuations in temperature when the refrigerator is open and maintains a temperature below -160 deg C, even when the refrigerator is open for extended periods.

Details

  • Original title: Improved temperature stability in gas-phase nitrogen refrigerators: use of a copper heat shunt.
  • Record ID : 1997-1959
  • Languages: English
  • Source: Cryobiology - vol. 33 - n. 5
  • Publication date: 1996/10

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