Acta Crystallographica and Journal of Synchrotron Radiation are defined as what?
Acta Crystallographica Acta Crystallographica is a series of peer-reviewed scientific journals, with articles centred on crystallography, published by the International Union of Crystallography (IUCr). Originally established in 1948 as a single journal called "Acta Crystallographica", there are now six independent "Acta Crystallographica" titles: "", "", "", "", "" and "". "Acta Crystallographica" has been noted for the high quality of the papers that it produces, as well as the large impact that its papers have had on the field of crystallography. The current six journals form part of the journal portfolio of the IUCr, which is completed by the "Journal of Applied Crystallography", the "Journal of Synchrotron Radiation", the open-access "IUCrJ" and the open-access data publication "IUCr Data".
Journal of Modern Optics The Journal of Modern Optics is a peer-reviewed scientific journal that was established as "Optica Acta" in 1954. It obtained its current name in 1987 and is published by Taylor & Francis with 21 issues per year. The journal covers most branches of classical and quantum optics including lasers, diffraction, holographs, nonlinear optics, and photon statistics. The editor-in-chief is Thomas Brown (University of Rochester). According to the "Journal Citation Reports", the journal has a 2015 impact factor of 1.267.