Tungsten alloy shield for moving CT
Tungsten alloy shield for mobile CT is a new type of lead-free shield with excellent shielding performance for X - rays. Moreover, it is environmentally friendly, non-toxic, and will not have an impact on the water, soil, and air in the environment.
In addition to nucleic acid testing, CT imaging is another major screening method for COVID-19.CT images can be used to determine whether a patient has mild or severe illness, can be discharged from hospital, and can be released from quarantine. In addition, even if the outbreak is contained, patients will be followed over a period of time with CT scans to determine which treatment to take as the patient progresses. Among them, mobile CT is of great clinical significance for bedside lung CT examination in critically ill patients with COVID-19.
According to the report, mobile CT has been used in square cabin hospitals to provide CT examinations for patients because it is flexible, efficient and convenient, and patients can be examined nearby. A chest CT examination takes less than 3 minutes. The application of this sophisticated equipment plays an important role in meeting the needs of first-line treatment.
Also, because these patients often have to undergo multiple CT scans to track their progress, these mobile CT scans are often equipped with tungsten alloy (or lead) shielding, because of the risk to patients with X-rays.
It has been estimated that a single CT scan has a radiation carcinogenic risk of 0.05% to 0.7% (generally estimated to be 1 in 2000).For patients who have multiple CT scans, the risk can be as high as >2.7%.
Tungsten resin curtains for mobile CT scanners
Large, fixed CT scanners are usually installed in shielded rooms where radiation protection is usually in place. However, mobile CT scanners may be moved to emergency rooms, intensive care units, general wards, etc., so they must have radiation protection equipment of their own.
The tungsten resin curtain (or tungsten polymer curtain) used in mobile CT scanners is a shielding curtain that blocks sources of X-rays and other radiation. It is reported that the raw material of the curtain tungsten resin is a new type of lead-free shielding material (radiation proof material), a kind of tungsten soft material that can completely replace lead.
Tungsten alloy cylinders for mobile CT scanners
Tungsten alloy tube for mobile CT scanner refers to the shielding tube of the X-ray tube of CT scanner. It is a metal sleeve made of tungsten alloy plate, and its thickness is generally 1-5 mm. The tungsten alloy shield is provided with a slit with the same width as the detector facing the detector of the CT scanner -- used for X photon emission to achieve CT imaging.
The tungsten alloy cylinder is installed in the scanning hole of the CT scanner and is used to absorb scattered X photons. The tungsten alloy sleeve can be either fixed on the scanning hole housing or fixed on the rotary table. The tungsten alloy sleeve fixed on the shell of the scanning hole is in a static state, while the tungsten alloy sleeve fixed on the turntable rotates with the turntable during operation.
Tungsten alloy plates for mobile CT scanners
The tungsten alloy plate for mobile CT scanner refers to a shielding plate placed behind the detector in the scanner to absorb X photons that are not absorbed by the detector.
Today, medical devices are designed to be small and convenient while balancing performance, and CT devices are no different. In order to reduce the load of CT scanner, the choice of shielding material is very important. Tungsten-alloy plates have higher density and radiation protection than traditional lead plates, making them more suitable for use as shielding plates in mobile CT scanners.
