Røntgendata

Röntgendata are data obtained from X-ray radiation, used across medicine, astronomy, and materials science. In medical radiology, Röntgendata consist of digital or film-based images produced by exposing an object, typically a patient, to X-rays and recording the transmitted intensity. Modern radiography uses digital detectors; data are stored with DICOM metadata that records exposure parameters, patient identification or anonymized IDs, and calibration information. Data quality and dose optimization are important considerations, and privacy concerns govern storage and sharing of patient data.

In X-ray astronomy and related fields, Röntgendata refer to measurements collected by X-ray detectors on space- and ground-based instruments. Data products include event lists, images, spectra, and light curves. They undergo calibration for detector response, energy scale, and background subtraction, and are typically stored in FITS files with descriptive headers. Public archives such as HEASARC and mission-specific repositories host these data. Analysis uses specialized software (for example CIAO for Chandra, SAS for XMM-Newton, HEASoft) to extract scientific results.

Röntgendata also cover X-ray techniques in materials science, such as X-ray diffraction and tomography, where data provide information about crystal structure and internal morphology.

The term derives from Wilhelm Conrad Röntgen, who discovered X-rays in 1895, and reflects the broad use of X-ray methods across disciplines. Ethical and methodological standards—privacy, calibration, reproducibility, and data provenance—guide the collection, processing, and sharing of Röntgendata.