@incollection{:/content/chapter/10.22233/9781910443187.chap1, author = "Dennis, Ruth", title = "Physics and equipment", booktitle = "BSAVA Manual of Canine and Feline Radiography and Radiology", publisher = "British Small Animal Veterinary Association", year = "2013", pages = "1-20", url = "https://www.bsavalibrary.com/content/chapter/10.22233/9781910443187.chap1" }