Tungsten alloy collimator is an important part of X-ray CT scanner in a PET-CT scanner, which can achieve both functions of collimation and radiation shielding. Wherein, PET-CT is a nuclear medicine technique which combines a positron emission tomography (PET) scanner and an X-ray CT scanner to acquire sequential images from both devices in the same session, which are combined into a single superposed image.

Tungsten alloy collimator is applied for SPECT-CT scanner to replace lead collimator to guide X-rays. Also, such a high density collimator shields gamma rays and X-rays to provide radiation protection for patients and accompanying personnel as the radioactive isotope used for SPECT-CT is technetium 99.

SPECT tungsten alloy collimator is a new type of lead-free collimator, and is made of high quality tungsten-based alloy - a new type of environmentally friendly shielding material with good absorption properties for gamma rays (due to its own high density). It means that tungsten alloy collimator is used in nuclear medicine imaging. But do you know why SPECT is also known as gamma camera?

Tungsten alloy collimator is the core component of a γ camera (gamma camera), more specifically, it is an important part of the detector on a gamma camera. Gamma rays from radioactive source within the body emitted in all directions, so a collimator is needed to achieve high degree of collimation.

Under COVID-19, demand for tungsten alloy shielding in medical CT equipment is increasing. Many manufacturers are increasing the output of tungsten alloy shields needed for medical imaging equipment CT, such as tungsten alloy anti-scatter grids, tungsten alloy plates, tungsten alloy tubes and tungsten alloy collimators (pre-patient collimators and post-patient collimators), to support the CT examination during the epidemic of the novel coronavirus (COVID-19).

Tungsten heavy alloy medical collimator is one of the typical radiation shielding applications of tungsten heavy alloy in the case of X-ray diagnostics. Wherein, tungsten alloy collimators are in the detector system of a medical electron linear accelerator.

Radiation shielding tungsten alloy plate is a new type of lead-free shield. Tungsten alloy plate is mainly used for radiation protection in radiology departments such as X-ray rooms and CT rooms as it has a good shielding effect on X-rays and γ-rays.

W-Ni-Cu alloy protective screen, or tungsten nickel copper alloy protective screen, is a new type of lead-free medical radiation shielding screen. The biggest difference between tungsten nickel copper alloy protective screen and tungsten nickel iron alloy protective screen (W-Ni-Fe alloy protective screen) is that W -Ni-Cu alloy is non-magnetic, so that it can be used in the field sensitive to the magnetic environment, and then exert its unique anti-interference advantages.

Tungsten alloy X ray shielding device is a device for effectively shielding the X-rays emitted by the CT machine. There are shielding materials such as tungsten alloy plates and tungsten rubber blankets on such a radiation shielding device. CT machine is developed from X-ray machine, and its resolution and qualitative diagnosis accuracy rate are much higher than that of general X-ray machine, thereby broadening the adaptability range of X-ray examination and greatly improving the accuracy rate of X-ray diagnosis.

Tungsten alloy leaf is an important component on the multi-leaf collimator, and is also the main part of an IMRT device, which can achieve conformal irradiation, thereby minimizing the leakage of radiation dose. There are at least 20 pairs of tungsten alloy leaves on the multi-leaf collimator. Wherein, IMRT is also known as intensity modulated radiation therapy.