Tungsten heavy alloy collimator, an important part of detector of SPECT system, is a collimator made of high density tungsten-based alloy with composition of W-Ni-Fe, W-Ni-Cu or W-Ni-Cu-Fe. There are a certain number of holes arranged on the collimator. According to the form of the drilled hole, the tungsten heavy alloy collimator is divided into tungsten alloy parallel-hole collimator, tungsten alloy focusing collimator, tungsten alloy converging collimator, and tungsten alloy pinhole collimator. More details, please visit: http://www.tungsten-alloy.com/tungsten-alloy-radiation-shielding.html But why choose…

Lead shield is a thing of past. Tungsten alloy X-ray shield, a newly developed poison-free shielding partition, is the future in hospitals or dental clinics, which can fully protect the medical workers and patients from different radiation resources such as X-rays. It has been reported that tungsten alloy X-ray shield is safe as it is non-toxic, fire-resistant and anti-corrosion with premium stability. Also, it features excellent sound insulation properties. And it can create an excellent and robust surface. More details,…

Tungsten alloy pinhole collimator is widely used in gamma camera for medical diagnosis. Wherein, tungsten alloy is a new type of environmentally friendly radiation shielding material that has better shielding capacity than poisonous lead to protect doctors and patients from radiation pollution. More details, please visit: http://www.tungsten-alloy.com/tungsten-alloy-radiation-shielding.html It has been reported that the conventional knife-edge collimator is not suitable for nuclear imaging system because many scattering radiations near the pinhole aperture happen and blur image. So, the researchers introduced a…

Tungsten alloy is more and more widely used for radiation protection to shield people or objects from radiation. For example, it is promising in applications of converging collimator – an important part of human brain SPECT, which is known to increase the photon detection efficiency compared to conventional parallel-hole collimator in SPECT imaging. That is because tungsten alloy is poison-free with better radiation shielding ability than lead (poisonous). More details, please visit: http://www.tungsten-alloy.com/tungsten-alloy-radiation-shielding.html It has been reported that a converging…

Tungsten alloy focusing collimator can improve the resolution and detection efficiency of SPECT system. The alignment direction of the holes of this type of collimator is directed to converge on a point in front of the collimator. The focusing collimator can get an enlarged image, but the reconstruction algorithm is complicated and the image is easy to distort. More details, please visit: http://www.tungsten-alloy.com/tungsten-alloy-radiation-shielding.html According to the experts, focusing collimator choosing tungsten alloy as the radiation shielding material as it has…

Tungsten alloy is a safe and reliable radiation shielding material that can replace the traditional radiation shielding material lead for parallel-hole collimator – the most commonly used collimator for stationary SPECT imaging in hospitals. As a new type of radiation shielding material, tungsten alloy has many advantages such as high strength, good processability, no secondary bremsstrahlung radiation, and environmental protection for applications of parallel-hole collimator. Also, the thickness of tungsten alloy is only 2/3 of lead to obtain the same…

Tungsten alloy collimator is also known as tungsten heavy alloy collimator or high-density tungsten alloy collimator. Collimator is a key component of gamma camera – the most basic imaging equipment in nuclear medicine, and affects the imaging quality. So, it is very important to choose the raw material of collimator. Tungsten alloy has good absorption and shielding performance to 60Co, 137Cs and other strong gamma ray sources, and therefore, it is regarded as the best shielding material for collimators. And…