CRYO-SLAMMER

摘要

IMPROVED CRYO-SLAMMER A method and apparatus for ultrarapid cooling of tissue samples against a chilled cryogenic surface. The cryogenic surface is enclosed in a high vacuum chamber during cooling of the cryogenic surface. Dry noncondensable room temperature gas is introduced from an external source to raise the chamber pressure just prior to slamming or plunging a sample against the cryogenic surface. The cryogenic surface is heated for regeneration or cleaing purposes between each successive sample.