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Any of several devices used in X-ray crystallography to avoid damage by X-rays
Wikipedia foundation.
Wikipedia foundation.
Diffractometer — A diffractometer (pronunciation: di frak tä m t r) is a measuring instrument for analyzing the structure of a material from the scattering pattern produced when a beam of radiation or particles (such as X rays or neutrons) interacts with it. In… … Wikipedia
Li'l Abner — This article is about the comic strip. For the stage musical, see Li l Abner (musical). For the film musical, see Li l Abner (1959 film). For the 1940 film, see Li l Abner (1940 film). Li l Abner It s Jack Jawbreaker! Li l Abner visits the… … Wikipedia