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263 views Technical Discussions Craig Smith Craig Smith 02:53 Jun-14-2001 Radiography in Water Could anyone confirm the following : We have to Gamma Ray a pipe with water inside it. The half value thickness of water is 80mm when using Iridium ? So if the pipe is 400 mm thick, then I have to increase the exposure by a factor of 32 (5 half thicknesses). Is this correct and does anyone know the hvt of water when using Cobolt. Thanks.    Reply  Translate  Close

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