It is possible to use an alternative type of radiotherapy, which is known as afterloading (a version of brachytherapy) when it is difficult to access the diseased cells directly. Tungsten alloy brachytherapy shielding consists of implanting a radioactive seed inside the patient's body, via a catheter. Before and after treatment the seed is kept in a large tungsten safe, tungsten alloy radiation shielding is used to protect the patient and medical staff against radiation in the treatment.

When it is difficult to access the diseased cells directly, it is possible to use an alternative type of radiotherapy, known as afterloading (a version of brachytherapy shielding). This technique consists of implanting a radioactive seed inside the patient's body, via a catheter. Before and after treatment the seed is kept in a large tungsten safe, to protect the patient and medical staff against radiation.

Tungsten alloy brachytherapy shielding is an integral part of the treatment regimen for cervical cancer and, generally, outcome in terms of local disease control and complications is a function of dose to the disease bed and critical structures, respectively. Therefore, it is paramount to accurately determine the dose given via brachytherapy to the tumor bed as well as critical structures.

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The density of tungsten heavy alloy makes it the first choice for radiation shielding applications in the medical imaging and treatment industry. Tungsten heavy alloy is the inert alternative to materials such as lead and depleted uranium, making it safe for use even in the most environmentally sensitive areas.

The tungsten alloy radiation shielding door is filled with special shielding materials in order to protect devices and human beings from invisible radioactive rays, electromagnetic waves, and magnetic fields. Depending on the purpose of use, the tungsten alloy radiation shielding door is categorized into tungsten alloy radiation shielding doors installed in X-ray rooms, nuclear medicine rooms, RI(Radioactive Isotope) laboratories or the radioactivity control rooms of industrial facilities, and electromagnetic wave shielding doors installed at magnetic wave shielding compartments protecting medical instruments in hospitals or MRI rooms.

The tungsten alloy radiation shielding door is applied in facilities like Linear Accelerators or places that handle Radioactive Isotopes such as nuclear power plants, medical facilities or institutions. Shielding Effectiveness(SE) is calculated in such a way that the radiation dose is less than the legal dose limit and then the proper amount of tungsten alloy radiation shielding door materials is filled inside the door in order to minimized bombing damages caused by radioactivity.


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Tungsten heavy alloy is ideal for shielding against radiation. The very high density of tungsten alloy shielding (more than 60% denser than lead) allows a reduction in the physical size of shielding components, without compromising their rigidity or the effectiveness of the shielding characteristics.

Tungsten heavy alloy stopper shields 50cm thick (concrete brick) around the 288cm tungsten alloy stopper shields. Concrete tungsten heavy alloy stopper shields before and after tungsten alloy stopper shields to stop the particles having interacted at or before the tungsten alloy stopper shields.

Tungsten heavy alloy stopper shields are usually made of concrete 50cm thick, with an inner aperture of 110cm and an outer aperture of 160 cm the all length of the beam stopper. It leaves a layer of air of 15cm around the tungsten heavy alloy stopper shield.

Tungsten heavy alloy stopper shields have been chosen instead of iron. Both material have a similar dE/dx (iron has even slightly higher one); therefore the particle absorption is twice the absorption in iron.

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Accelerators come in just a few broad types. First, they propel either lighter particles (electrons and positrons) or heavier ones (such as protons and antiprotons). Second, they can accelerate the particles in a single passage along a straight line or in many orbits around a circular ring. At such energies, electrons and positrons must be accelerated in a straight line; accelerating them in a ring would result in excessive energy loss from a process called synchrotron radiation.

In a plasma accelerator, the role for the accelerating structure is played by the plasma, and ionized gas. Instead of being a problem, electrical breakdown is part of the design because the gas is broken down to begin with. The powder source is not microwave radiation but is either a laser beam or a charged particle beam. Therefore, radiation becomes to a problem. To protect from radiation is very important. Tungsten alloy radiative shielding for plasma accelerator is quite necessary. Tungsten alloy radiative shielding offered by us is qualified.

Depending on heaviest density but smallest capacity, tungsten alloy material is more and more popular be used for making tungsten alloy radiative shielding to protect body from plasma accelerator radiation. Compared with lead, tungsten is much smaller but with heavier density, which is very helpful for high radiation absorption. It is more than 60% denser than lead, meanwhile, it has excellent machinability, good corrosion resistance. The most important thing is that, tungsten material is environment-friendly.



Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
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