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Fracture Formation Around A 2.2 mm Cryosurgical Probe
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Cryoprobe tube diameter = 2.2 mm Beaker diameter = 65 mm One freeze\thaw cycle. Elapsed time in is shown on each photo (min:sec) Note: The cooling rate in this large diameter probe is about 800°C/min (~15 sec to -190°C!), which can explain the high tendency to fracture.
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Liquid nitrogen flow started
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Liquid nitrogen flow continues
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Liquid nitrogen flow continues
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Liquid nitrogen flow continues
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Liquid nitrogen flow continues
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Liquid nitrogen flow continues
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Liquid nitrogen flow continues
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Liquid nitrogen flow continues
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Liquid nitrogen flow continues
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Liquid nitrogen flow stopped at 8:40
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Liquid nitrogen flow stopped at 8:40
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Liquid nitrogen flow stopped at 8:40
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