| Popis: |
Cryosurgery represents physically cooling a small area (in a direct contact with a probe) on a large, semi-infinite slab, representing here the “body of the patient.” Although done often on an empirical basis, the process of cryocooling can be handled in a more rational fashion, according to the accepted principles of heat transfer. Thus, the greatest extent of cooling that occurs at the center of the cooled area, is calculated here from the solution of the appropriate boundary-value problems. Similarly, the times required for the maximum penetration of the freezing temperature are estimated, with the help of Neumann’s solution for freezing of a semi-infinite slab. |
