Fracture Formation Around A 1.3 mm Cryosurgical Probe

with Thermal Insulation 

 

Cryoprobe tube diameter = 1.3 mm

Beaker diameter = 65 mm

Four freezing periods separated by 10 sec intervals of no liquid nitrogen flow.

Elapsed time in is shown on each photo (min:sec)

 

30000

Period I: Liquid nitrogen flow started

 

30542

Period I: Liquid nitrogen flow stopped at 5:40

 

30543

Period I: Liquid nitrogen flow stopped at 5:40

 

30548

Period II: Liquid nitrogen flow restarted at 5:50

 

30951

Period II: Liquid nitrogen flow stopped at 9:51

 

30956

Period II: Liquid nitrogen flow stopped at 9:51

 

31000

Period III: Liquid nitrogen flow restarted at 10:00

 

31445

Period III: Liquid nitrogen flow stopped at 14:45

 

31455

Period IV: Liquid nitrogen flow restarted at 14:55

 

31942

Period IV: Liquid nitrogen flow stopped at 19:42

 

31950

Period IV: Liquid nitrogen flow stopped at 19:42

 

32012

Period IV: Liquid nitrogen flow stopped at 19:42

 

32042

Period IV: Liquid nitrogen flow stopped at 19:42

 

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32142

Period IV: Liquid nitrogen flow stopped at 19:42