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XRF may refer to: *
X-ray fluorescence X-ray fluorescence (XRF) is the emission of characteristic "secondary" (or fluorescent) X-rays from a material that has been excited by being bombarded with high-energy X-rays or gamma rays. The phenomenon is widely used for elemental analysis ...
, analytical technique *
X-ray flash (astronomy) In astronomy, an X-ray flash is a transient emission of X-rays originating in a distant galaxy, probably caused by a hypernova. They have been observed to last 90 to 200 seconds. Nearly all hypernovae are detected via (higher-energy) gamma ray ...
, celestial object {{disambiguation