METHOD OF PREPARING A CRYOGENIC SAMPLE WITH IMPROVED COOLING CHARACTERISTIC
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United States of America Patent
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Issued Date -
Aug 15, 2024
app pub date -
Apr 23, 2024
filing date -
Mar 31, 2021
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Abstract
The invention relates to a method and an apparatus for preparing a cryogenic sample, whereby the sample is subjected to rapid cooling using a cryogen. A pair of conduits for transporting cryogenic fluid are provided, each of which conduits opens out into a mouthpiece, which mouthpieces are arranged to face each other across an intervening gap, wherein in the gap a sample that is provided on a substantially planar sample carrier can be received. Cryogenic fluid can be pumped through the conduits so as to concurrently flush from the mouthpieces and suddenly immerse the sample in cryogenic fluid from two opposite sides. As defined herein, at least one of the mouthpieces comprises at least two nozzle openings for evenly cooling the substantially planar sample carrier during the flushing.
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