Dynamic behavior of cryogen spray cooling: Effects of spurt duration and spray distance

Abstract

Based on our results, a good choice to achieve low T(min) and t(r) for the treatment of superficial skin lesions may be met by using deltat of approximately 30-50 milliseconds and the shortest spray distance that is tolerable by the patient. Spurt durations (deltat) of more than 30-50 milliseconds at spray distances (L) greater than L(c) lead to higher T(min) and longer t(r). These parameters may be appropriate for laser therapy of deeper targets.