Crum L A, Daniels S, ter Haar G R, Dyson M
Division of Anatomy, United Medical School (Guy's Campus), London.
Ultrasound Med Biol. 1987 Sep;13(9):541-54. doi: 10.1016/0301-5629(87)90180-3.
Visible size gas bubbles can be produced in an agar based gel when irradiated with either continuous wave (CW) or pulsed ultrasound. It is shown that many aspects of the production of these bubbles can be explained in a qualitative manner by a theoretical model based upon growth of a cavitation nucleus by rectified diffusion. Quantitative predictions for the number of bubbles produced as a function of various parameters tend to be different from measured values by less than an order of magnitude. The results given here provide a useful theoretical basis for the explanation of earlier measurements of ultrasonically induced bubbles in vivo.
当用连续波（CW）或脉冲超声照射时，在琼脂基凝胶中可以产生可见大小的气泡。结果表明，基于整流扩散的空化核生长的理论模型可以定性地解释这些气泡产生的许多方面。作为各种参数函数的气泡产生数量的定量预测与测量值的差异往往小于一个数量级。这里给出的结果为解释早期体内超声诱导气泡的测量提供了有用的理论基础。
