Why Choose Tungsten Heavy Alloy Material for Multi-Leaf Collimators

Tungsten heavy alloy is ideal for shielding against X-rays and gamma radiation. It reduces the physical size of shielding components without reducing their effectiveness and requires only two-thirds the thickness of lead while delivering the same shielding results.

This is extremely important in linear accelerator medical systems, which utilize
Multi-Leaf Collimators (MLC) to regulate the beam. The sophisticated shielding properties of tungsten heavy alloy for Multi-Leaf Collimators potentially increases the number of leafs in a collimator and enables a greater precision beam that targets only the area of the patient that requires treatment.

The chart below compares the thickness of (tungsten heavy alloy) WHA to tungsten (W), lead (Pb), and molybdenum (Mo), illustrating that thinner leafs can be used to obtain the same shielding properties as thicker leafs, enabling more leafs in the same space which improves beam precision.

 

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Tungsten Alloy Radiation Sheet for Detector

Most components of radiation detector are tungsten alloy sheet based applications with a thickness range of about 0.1mm to 2mm.
Why can use such thickness sheet for radiation detector? Due to the good performance of tungsten alloy materials. The tungsten alloy sheet for radiation detector is higher density compare with other materials like lead ,and molybdenum. It means that, when different material with the same thickness,tungsten alloy sheet will do better in absorption of x-ray and the absorption of x-ray and gamma radiation.


As the reason the great amount substantial reserves of tungsten on the Earth. Tungsten alloys with special economic advantage, geography and performance advantages would be wildly used in in various industries.Future speaking,tungsten alloy sheet for detector should be more environmental friendly than other metal materials.

 

Tungsten Alloy Manufacturer & Supplier: Chinatungsten Online- http://www.tungsten-alloy.com
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Cemented Carbide Woodworking Tools Application

Since cemented carbide woodworking tools are used for working solid wood, such as logs etc. Its application also includes man-made products based on wood particles, fibres or chips, such as chipboard, particle board and medium and high density fiber boards (MDF/HDF), the different types of corrosion are important:  solid wood contains organic acids and other compounds that degrade the binder in the tool material and cause outbreak of the hard WC-particle from the matrix and thus wear the tool material.

Man-made wood products contain organic binder material, based on compounds such as urea, formaldehyde, wax, glue fillers etc. and possibly laminated with plastic layers, such as melamine. The temperature may get very high (>500°C) when working these wood products and then the content of the product will degrade into corrosive compounds chemically attacking the cemented carbide binder.
Furthermore the high temperature may result in oxidation of the cemented carbide binder, also degrading and wearing the cutting edge.


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Why Use Tungsten Alloy as Detector System

Due to tungsten alloy is high density and atomic mass, tungsten alloy exhibits excellent absorption behaviour against electromagnetic radiation such as X-rays and γ-radiation . The absorption of x-ray and gamma radiation is in direct proportion to the density of the shielding material. Tungsten alloy are more than 1.5 times as effective as lead and provide extremely efficient protection, particularly where space is limited.For this reason, tungsten alloy based materials are used for shielding applications in medical imaging diagnostics and therapy. In the case of X-ray diagnostics, typical applications are collimators in the tungsten alloy detector system and shielding parts in computer tomography.

 

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Carbide Tipped Tools Grade Selection

Carbide tipped tools are far more durable than solid carbide tools. Under abnormal conditions the carbide may start to crack due to hard spots in the material being machined, incorrect feed rates or inadequate holding of workpiece. These cracks that shatter solid carbide tools are stopped in carbide tipped tools by the tough hardened tool steel body - usually permitting the tool to complete the production run.

The carbide grade in carbide tipped tools can be selected wholly based on its cutting and wear characteristics rather than compromising for the carbide's structural strength, as is required for solid carbide tools. Some high cost specialty carbides necessary for aggressive machining of many tough alloys are not even available in solid carbide round form.

 
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