Does mammography use high voltage or low voltage?

Mammography is the use of soft X-rays to project breast tissue, through film exposure, after development, fixation and other procedures for imaging.

Molybdenum target photography device is a special wire machine. The tube voltage of the bulb tube is relatively low, about 20 ~ 40 kV, and the anode target surface is made of molybdenum (some high-grade breast implants are made of molybdenum rhodium alloy). Under the bombardment of low kV X-rays, marker rays with constant wavelength, long wavelength, low penetration rate, high intensity, strong monochromaticity and high contrast can be generated, and the resolution of fine density difference of soft tissues is high. Equipped with a special intensifying screen and a photographic film with low linear absorption rate, high contrast and good definition, a good breast image can be obtained by multi-directional photography of breast tissue on a special examination frame, which clearly shows glands, ducts, fibrous septa, skin, subcutaneous tissue, vascular structure, pathological masses and fine calcification of breast.

Conclusion: The radiation used in mammography has a long wavelength of 0.063-0.07 1 nm, which is a kind of soft radiation with weak penetration. The voltage of the tube used is low, about 20 ~ 40 kV, which belongs to low voltage.