1. DENG HUI, LIN SHUQING, Ultrasonic testing second edition. Beijing: The Chinese Labor and Social Security Publishing House, 2008
2. HE YAN, GUO CHONGXIONG, ZHANG LONG, Thin-walled steel ultrasonic immersion testing [J], physical testing, 2003, (04)
3. ASTM B 811-02(2007) Standard Specification for Wrought Zirconium Alloy Seamless Tubes for Nuclear Reactor Fuel Cladding
4. JB/T4730.3-2005 Nondestructive testing of pressure equipments—Part3: Ultrasonic testing
5. YING CF, TRUELL R. Scattering of a plane longitudinal wave by a spherical obstacle in an In-tropically elastic soiled [J]. J. Appl-phys. 1956.27(9):1086–1097