Tungsten Polymers X-ray Absorption for Medical Devices

Tungsten polymers are used to produce catheters and other devices that are inserted into the body for diagnostic or interventional procedures are commonly filled with substances opaque to x-rays, thereby rendering the devices visible under fluoroscopy or x-ray imaging.

These fillers, or radiopacifiers—tungsten(typically dense metal powders)—affect the energy attenuation of photons in an x-ray beam as it passes through matter, reducing the intensity of the photons by absorbing or deflecting them, could be a suitable material for X-ray absorption for many radioan facilities especially medical devices. Because these materials exhibit a higher attenuation coefficient than soft tissue or bone, they appear lighter on a fluoroscope or x-ray film. This visibility provides the contrast needed to accurately position the device in the affected area. Image contrast and sharpness can be varied by the type and amount of radiopacifier used, and can be tailored to the specific application of the device.

The Energy of X-ray

All radiant energy, including X-ray, has its origin in a disturbance of electrical charge. Consider a point charge — an electron — surrounded by a symmetrical electromagnetic field and moving through space at constant velocity. What happens to the motion of the field if the central charge is speeded up or slowed down? Experiments indicate that the field reacts much like a mass of jelly. When the central charge is accelerated, the disturbance is communicated radially through the field as a wave motion — the outside parts of the field requiring an appreciable time interval to catch up with the center. Work expended in accelerating the central charge is carried away by the wave as radiant energy, at a velocity which depends on the nature of the “jelly.”

Tungsten alloy is a suitable material for radiation protection, for more details, you could visit: http://www.tungsten-alloy.com/en/alloy07.htm.

X-ray Tungsten Alloy Radiation Protection for Bone Study

X-ray has a science function on bone study in medical field, and it tends to flow through the skin and away from vital organs such as the heart.

In this case, instead of filling with a lavender glow, like the quartz bulb, the inside of the tungsten alloy tube remained dark but the glass in contact with the magnesium lighted with a pale greenish fluorescence that reminded me of the glow emitted by old style X-ray tubes of the gas type, which is of tungsten alloy radiation protection.

Like visible light, X-rays are a form of radiant energy. Exports have solved the problem of equipment cost. Protection against exposure to the rays is not difficult to arrange. With these two considerations out of the way, X-rays open a range of experiments equaled by few other phenomena of physics. In addition to providing a source of X-rays for radiographs, a generator of X-rays in combination with accessories enables you to measure the charge of the electron, to study the structure of crystals, to observe the wave-particle duality of matter and radiation, and to probe other microcosmic corners. During this process, tungsten alloy material will be a suitable material for radiation protection. For more details, you could visit http://www.tungsten-alloy.com/en/alloy07.htm.

The Substituation of Tungsten Plastic to Lead in Molded Products

There is a technique of tungsten plastic to develop tungsten-filled plastics that can replace lead for radiation protection. 

This technique has converted more than 50 lead-shielding parts with a proprietary non-lead, polymer shielding material. Tungsten plastic technique is more and more popular for radiation protection now. Lead may be the asbestos of the 21 Century, but tungsten material superior in its high specific density and denser gravity. Medical device manufacturers in the United States also expect to face stiff regulations on use of lead. Tungsten in a nylon 6 base offers equivalent X-ray shielding and can be molded on standard equipment. However, as a new type technique applied on tungsten plastic, the manufacture cost will be expensive but it has an effective function to absorb radiation better than lead. For more details, you could visit http://www.tungsten-alloy.com/tungsten-plastic.html.

What is Tungsten Target for X-ray?

Tungsten target is the anode of an x-ray tube.

As tungsten alloy have many applications, such as bulb filaments, X-ray tubes (as both the filament and target), etc.

Tungsten is used as one of the materials for the anode as the electrons emitted from the cathode and striking the anode generate a good deal of heat, besides, tungsten is a high temperature metal, which is made from raw ground tungsten powder, been pressed and sintering. It is then hot isostatic pressed, bloomed, cold rolled, machined and bonded with a copper backing plate.
The electronic structure of tungsten makes it one of the main sources for X-ray. 
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