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.

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.

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?

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).