XmlmmCIF equivalent: phasing_set Data items in the PHASING_SET category record details about the data sets used in a phasing experiment. A given data set may be used in a number of different ways; for instance, a single data set could be used both as an isomorphous derivative and as a component of a multi-wavelength calculation. This category establishes identifiers for each data set, and permits the archiving of a subset of experimental information for each data set (cell constants, wavelength, temperature, etc.) This and related categories of data items are provided so that derivative intensity and phase information can be stored in the same data block as the information for the refined structure. If it is deemed desirable to archive all possible experimental information for each data set (raw data sets, crystal growth conditions, etc.) those data items should be recorded in a separate data block. XmlmmCIF equivalent: phasing_set/cell_angle_alpha Unit-cell angle alpha in degrees of the data set. XmlmmCIF equivalent: phasing_set/cell_angle_beta Unit-cell angle beta in degrees of the data set. XmlmmCIF equivalent: phasing_set/cell_angle_gamma Unit-cell angle gamma in degrees of the data set. XmlmmCIF equivalent: phasing_set/cell_length_a Unit-cell length a corresponding to the data set. XmlmmCIF equivalent: phasing_set/cell_length_b Unit-cell length b corresponding to the data set. XmlmmCIF equivalent: phasing_set/cell_length_c Unit-cell length c corresponding to the data set. XmlmmCIF equivalent: phasing_set/detector_specific The particular radiation detector. In general this will be a manufacturer, description, model number or some combination of these. XmlmmCIF equivalent: phasing_set/detector_type The general class of the radiation detector. XmlmmCIF equivalent: phasing_set/radiation_source_specific The particular source of radiation. In general this will be a manufacturer, description, or model number (or some combination of these) for laboratory sources and an institution name and beamline name for synchrotron sources. XmlmmCIF equivalent: phasing_set/radiation_wavelength The mean wavelength of radiation at which this data set was measured. XmlmmCIF equivalent: phasing_set/temp The temperature in kelvins at which the data set was measured. XmlmmCIF equivalent: phasing_set/id The value of _phasing_set.id must uniquely identify a record in the PHASING_SET list. Note that this item need not be a number; it can be any unique identifier.