Tungsten Shielding in Medical

Tungsten element is more effective shielding and good machinable so that it is widely used in medical as collimator.Compare to lead ,tungsten is much more environmentally friendly and higher density which means smaller parts for the same weight.in neutron,X-ray and gamma ray optics,the collimator is a device that filters a stream of rays so that only those traveling parallel to a specified direction are allowed through.according to the use of lenses it is not yet possible to focus radiation with such short wavelengths into an image as is routine with electromagnetic radiation at optical or near optical wavelengths however tungsten collimator could be used in neutron ,X-ray and gamma-ray.

Tungsten shielding can be used the following medical areas:
Multileaf collimators
Radio guided surgery
Gamma probe
Medical isotope transport and containment
Radiotherapy machines
Computerized tomography scanners
Single-photon emission tomography
Positron emission tomography
Computerized tomography and X-Ray security machines
Oncology treatment systems
Oncology instruments
Radioactive syringe protection

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