Temperature rise induced by an annular focused transducer with a wide aperture angle in multi-layer tissue*

Project supported by the National Key Research and Development Program, China (Grant No. 2016YFF0203000), the National Natural Science Foundation of China (Grant Nos. 11774167 and 61571222), the Fundamental Research Funds for the Central Universities, China (Grant No. 020414380001), the State Key Laboratory of Acoustics, Chinese Academy of Sciences (Grant No. SKLA201609), and AQSIQ Technology Research and Development Program, China (Grant No. 2017QK125).

Qi Meng, Liu Jiehui, Mao Yiwei, Liu Xiaozhou
       

Axial temperature rise at different geometric inner radii.