Film holder for microradiography of large undecalcified bone specimens

A film holder was constructed for microradiography of large ground sections of bone specimens, which were embedded in methyl methacrylate. A vacuum system was used to assure close contact between the specimen and microradiographic film. A table top, low energy x-ray unit was used as an x-ray source. With this method, satisfactory microradiographs could be produced. This holder was easy to make and should be considered by those who are involved in large specimen microradiography