Tungsten Alloy Radiation Shielding Lead Free

Tungsten has a density that is approximately 1.7 times higher than lead, therefore it provides a higher degree of shielding. It is a viable option for applications where lead is not a feasible option, including for size reduction, and maximizing weight in large or small cavities for radiation shielding. It is strong and highly customizable into precision components.

Tungsten is the preferred choice for medical and industrial settings that require radiation shielding since it uses less material than lead to provide the same level of absorption. An excellent material for shielding, tungsten guarantees minimum radiation exposure and ensures ALARA goals in the workplace. Machinability, radiographic density, strength, low toxicity, and heat resistance allow for superior design adaptability vs. other shielding materials.

Lead has been used as radiation shielding material in various applications including diagnostic imaging, radiation therapy, nuclear and industrial shielding. Lead is one of the radiation shielding materials that commonly used for X-rays and gamma radiation because it has high density, high atomic number, and high linear and mass attenuation coefficients. Lead can be hazardous when taken into the body by swallowing or breathing in lead or materials contaminated with lead. Radiation workers sometimes bring lead residues into their home on their work clothes, skin, hair and equipment after dealing with lead at their workplace.

Gamma ray is penetrating electromagnetic radiation that can damage living cells by transferring its energy to surrounding cells. Gamma rays are high-energy photons with very short wavelengths and thus, very high frequency. Gamma rays can travel thousands of feet in air and it can easily pass through the human body. The attenuation of gamma radiation occurs through the interaction of the gamma radiation with matter. The degree of gamma ray attenuation depends on the energy of incident gamma radiation, atomic number, density of elements in the shielding material and the thickness of shielding.

Thus, appropriate radiation shielding must be applied to protect human and the environment from the harmful effects of radiation. In medical application, radiation dose to workers is reduced as low as possible by applying appropriate radiation shielding.

High atomic number of elements play an important role in radiation protection. This is due to probability of occurrence of photoelectric absorption per atom within a particular material depends on the energy of incident X-ray photons and the atomic number of atoms comprising the irradiated object. The photoelectric absorption increases markedly as the energy of the incident photon decreases and the atomic number of the irradiated atoms increases.

Choosing the most appropriate type of radiation shielding is mainly based on the cost, weight, chemical and physical durability of the materials. High density and atomic number materials offer superior attenuation to low atomic number materials.

The use of toxic heavy metal like lead causes serious long-term effects on health and environment. Thus, it motivates interests in finding non-toxic, light, flexible and low-cost radiation shielding materials to replace lead.

Lead free material such as tungsten is non-toxic material. In addition, tungsten has high density and better shielding properties compared to lead due to its higher atomic number.

The benefits of tungsten shielding are:
- High radiation attenuation.
- Easy to keep clean & sterilize.
- Non-Toxic material.
- Dimensionally stable up to 1000 *c.
- Hard & Durable (no need for steel or plastic coating).

T&D tungsten alloys are used for radioactive source containers, gamma radiography, shields, and source holders for oil-well, logging, and industrial instrumentation. High-density alloys also serve as collimators and radiation shielding in cancer therapy, as well as syringe protection for radioactive injections. When you need to direct a specific amount of radiation to a targeted area, tungsten alloys provide the control you need. Our high-density alloys will continue to perform, even under extreme, high-heat conditions.

Compared to traditional radiation shielding materials, tungsten alloys provide excellent value. A high-density alloy can provide the same energy absorption as lead using 1/3 less material! Unlike lead, you’ll also reduce administration costs by eliminating the need to obtain special licensing—it’s not required.

Besides sintered finished tungsten alloy and pure tungsten products, We also provide tungsten polymer for your dose reduction needs. Product offerings include:
• Blankets
• Safety Floor Shields
• Pipe Wrap
• Pipe Shields
• Magnetic Shields
• Custom Designed Shielding

NON-LEAD NUCLEAR SHIELDING BLANKETS

Bulk shields used to shield larger areas of radiation, produced in standard sizes such as 1’ x 2’, 1’ x 3’, 1’ x 4’, 1’ x 5’, 1’ x 6’ and 2’ x 3’

PVC laminate covering (optional)

The density can be as high as 11.4 g/cc

NON-LEAD NUCLEAR PIPE SHIELDS

Pipe Shields are sized and formed to shield radiation from piping while meeting standard weight constraints

Designed to slip on, encase and snap tightly around pipe

Available in both standard and custom sizes and lengths

Designed for optimal thickness at Co-60, and to prevent streaming

The density can be as high as 10.50g/cc

NON-LEAD RADIATION FLOOR SHIELDING

Floor shields improve radiological and industrial safety in moderate to high traffic work areas

Made with maximum shielding to provide maximum attenuation

Can be made with traction tread to maximize worker footing

NEUTRON SHIELDING

Neutron Shielding is a polyethylene container with dispersed low atomic element materials to effectively moderate or thermalize incident neutrons. Surrounding the container is Bismuth shielding material to reduce dose from gamma radiation produced from neutron capture interactions. Using this combination, we can effectively attenuate many levels of Alpha particles and its high-intensity by-products.

Our Tungsten high density metals provide the properties required in radiation shielding for therapy as well as diagnosis. Common applications include collimators, syringe and vial shields, and radioactive source containers.

The nominal tungsten content ranges from 90-97% with densities from 17 – 19 g/cm3 respectively. Typical uses are for collimators, syringe and vial shields, and radioactive source containers. T&D is also active in Nuclear Medicine applications. Our tungsten base materials are often utilized for radiation shielding in drug storage and delivery applications as well as containment vessels, shielding and directional focus apparatus without the health or environmental threats that lead presents. Common applications include collimators, syringe and vial shields, and radioactive source containers.

Tungsten Radiation Shielding Parts Applications:

· Nuclear shielding wall

· Tungsten Alloy FDG container

· Tungsten heavy alloy inspect welds

· Nuclear testing equipment

· Radiation shielding barrel

· Isotope production, transport, and containment

· Large container inspection devices

· Oncology Isotopic and accelerator base platforms

· Pipe-line inspection Gamma

· Defense for nuclear submarines

· Shielding components for X-ray tubes

· Syringe protection for radioactive injections

· Isotope containers for brachytherapy

· Shutter blades for computer tomography

· Shielding elements for detectors

· Shielding elements for linear accelerators

· Radioactive source containers

· Gamma ray protection

· Radioactive source holders for oil-well, logging, and industrial instrumentation

· Collimators and shielding for cancer therapy machines

· Radioactive source containers

· Gamma radiography tungsten alloy radiation shielding

· Tungsten alloy radiation shielding block

· Tungsten alloy radiation shielding source holders for oil well logging

· Tungsten heavy alloy X-ray collimators

· Tungsten alloy PET syringe shield

· Shielding in cancer therapy machines

· Syringe protection for radioactive injections

· Tungsten heavy alloy syringe shielding

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