Cooled video camera for optical investigations below 1 mK

H. Alles*, J. P. Ruutu, A. V. Babkin, P. J. Hakonen, A. J. Manninen, J. P. Pekola

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

21 Citations (Scopus)
45 Downloads (Pure)

Abstract

An optical imaging system for milliKelvin temperatures has been developed based on a regular B/W surveillance camera (25 frames/s), with its CCD sensor inside the 4-K vacuum can of our nuclear demagnetization cryostat. The heat leak to the nuclear stage, caused by the operation of the video camera, was reduced below 1 nW by careful rf shielding. The construction of the system and its limits of operation are discussed.

Original languageEnglish
Pages (from-to)1784-1785
Number of pages2
JournalReview of Scientific Instruments
Volume65
Issue number5
DOIs
Publication statusPublished - 1994
MoE publication typeA1 Journal article-refereed

Keywords

  • charge coupled device
  • optical investigation changes
  • superfluid 3He

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