What are the main advantages of tungsten target materials?
Molybdenum is often used as a target material in mammography due to its favorable properties for imaging breast tissue. Molybdenum has a relatively low atomic number, which means the X-rays it produces are ideal for imaging soft tissue such as the breast. Molybdenum produces characteristic X-rays at lower energy levels, making them ideal for observing subtle differences in breast tissue density.
In addition, molybdenum has good thermal conductivity properties, which is important in mammography equipment where repeated X-ray exposures are common. The ability to effectively dissipate heat helps maintain the stability and performance of X-ray tubes over extended periods of use.
Overall, the use of molybdenum as a target material in mammography helps optimize the quality of breast imaging by providing appropriate X-ray properties for this specific application.
What are the disadvantages of tungsten target materials?
High brittleness: Tungsten target materials have high brittleness and are susceptible to impact and vibration, which may cause damage.
High manufacturing cost: The manufacturing cost of tungsten target material is relatively high because its production process requires a series of complex procedures and high-precision processing equipment.
Welding difficulty: Welding tungsten target materials is relatively difficult and requires special welding processes and techniques to ensure the integrity of their structure and performance.
High coefficient of thermal expansion: Tungsten target material has a high coefficient of thermal expansion, so when used in high temperature environments, attention should be paid to its size changes and the influence of thermal stress.