Varian manufactures cost-effective replacement medical X-ray tubes for many diagnostic imaging modalities including computed tomography (CT),
special procedures (cath lab/angiography), radiography/fluoroscopy (R/F), and mammography.
Our tubes are made for equipment from major medical manufacturers, including GE, Hitachi, Philips, Shimadzu, Siemens, and Toshiba.
As the world’s largest independent manufacturer of medical X-ray tubes,
Varex has extensive experience providing high-quality, safe, effective, long-lasting and cost-effective X-ray tubes to markets worldwide.
Construction of the X-ray tube
The X-ray tube contains two principal elements:
cathode: provides a source of electrons
anode: acts as the target for electrons and releases x-rays
Additional components include:
Cathode and anode are contained in the envelope,
- expansion bellows (provide space for oil to expand)
- tube envelope (evacuated)
- tube housing
- cooling dielectric oil
- induction stator
- tube window
which provides vacuum, support and electrical insulation.
The envelope is most often created from glass, although some tubes contain envelopes