X-ray source

X-ray sources abound around us. They include the following:


 * Natural X-ray sources:
 * Astrophysical X-ray source, as viewed in X-ray astronomy
 * X-ray background
 * Naturally occurring radionuclides
 * Artificial X-ray sources
 * Radiopharmaceuticals in radiopharmacology
 * Radioactive tracer
 * Brachytherapy
 * X-ray tube, a vacuum tube that produces X-rays when current flows through it
 * X-ray laser
 * X-ray generator, any of various devices using X-ray tubes, lasers, or radioisotopes
 * Synchrotron, which produces X-rays as synchrotron radiation
 * Cyclotron, which produces X-rays as cyclotron radiation