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Tungsten Alloy Brachytherapy Shielding

Tungsten Alloy Brachytherapy Shielding

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It is viable to prefer an alternative type of radiotherapy, that is known as afterloading (a version of brachytherapy) when it is hard to directly get access to the diseased cells. Tungsten alloy brachytherapy technique is composed of implanting a radioactive seed inside the patient's body, through a catheter. Prior to and post treatment, the seed is kept in a big tungsten case, tungsten alloy radiation shielding is generally utilized to save the patient and medical staff from radiation in the treatment. Guangxi Chentian Metal Products Co. Ltd is a proficient and reliable tungsten alloy products manufacturer who can deliver all types of tungsten alloy radiation shielding products used in the technique.

Tungsten Alloy Brachytherapy Shielding

When it is not easy to get access to the diseased cells directly, it is fessible to apply an alternative type of radiotherapy, called as afterloading (a version ofbrachytherapy shielding). This technique is used to insert implanting a radioactive seed inside the patient's body, through a catheter. Post and pre treatment, the seed is kept in a big tungsten box, to safeguard thestaff and patients against radiation.

Tungsten Alloy Brachytherapy Shielding Purpose

Tungsten alloy brachytherapy shielding is an impotant part of the treatment realm for cervical cancer and, generally, results related to common disease control and complications is appropriate dose to the diseased bed and crucial structures, respectively. Therefore, it is significant to precisely determine the dose addministered through brachytherapy to the tumor bed as well as important structures.

 

 

Why Use Tungsten Alloy Brachytherapy Shielding?

Compared to common radiation shielding materials like lead and boron carbide, tungsten alloy shielding gives better density with less capacity. At the same weights, the high density alloy can offer the same energy absorption as lead using 1/3 less material. When the weight is fixed, more density, denser, and the thickness would be thinner.

Tungsten alloy brachytherapy shielding could be designed with the lesser thickness but the higher of radiation absorbed in good degree of density. That is why tungsten alloy material is befitting for radiation shielding. Tungsten alloy brachytherapy shielding is more efficient than lead and it is toxic free.

On designing of tungsten alloy shielding, it is estimated in accordance with requirements of shield to decrease the multiple shielding materials' thickness.

 

Formula: K = e0.693 d / 1/2

K: Shield weakened multiple

1/2: The shielding material of the half-value layer values

d: Shielding thickness, with the half-value layer thickness of their units, one is supposed to translate the better quality of half-value layer thickness into the thickness of the material, apportioned by the density of the material that can be obtained.

Tungsten Alloy Intracavitary Brachytherapy Shielding Conclusions:

Making use of an S&S imaging method in consonance with prototype applicators that feature movable interovoid shields, they are able to obtain artifact-free image fixed in a clinically appropriate geometry.

MR images are gained from a phantom applicator that keeps shields composed of a unique tungsten alloy. Artifacts are largely confined to regions within the ovoid cap and are of no clinical importance. The second generation A3 uses this material for interovoid shielding.