In radiology, the x-ray yield is the percentage of tube power transformed into radiation.
A high amount of the tube power is used to warm up the target. A higher tube voltage results in a linear increased x-ray yield. The transformation of tube power depends also on the atomic number of the target material. The higher the atomic number, the better the x-ray yield. Tungsten (the most common target material) in combination with a tube voltage of 100kv provides an x-ray yield of 0.7%.

Xeromammography or xeroradiography is a breast imaging. Xeroradiography uses photoelectric records of x-ray images on a coated metal plate. Xeromammography as distinct from film-screen mammography uses low-energy photon beams, long exposure times and dry chemical developers.
Although xeromammography has sensitivity and specificity comparable with those of a film-screen mammogram, it is not recommended for screening or diagnostic mammography because of maintenance problems and the need for higher breast radiation doses compared with modern low dose mammography equipment.

Xoran Technologies, founded in 2001, is a medical imaging company that is headquartered in Ann Arbor, Michigan. Xoran Technologies manufactures specialized, compact, low dose CT scanners, bringing fresh, common sense solutions to patient care.