Tungsten Gamma Radiation Shielding Elements for Linear Accelerators

• Application: Aviation, Industrial, Medical, Oil and Petroleum
• Standard: ASTM
• Purity: 90%~97%
• Alloy: Alloy
• Shape: Various Shapes
• Type: Short Rod, Round Bar, Rectangular Blocks
• Model NO.: TS007
• Transport Package: Export Wooden Cases or Iron Barrels
• Specification: Cutomized sizes or according to drawings
• Trademark: Kefeng
• Origin: China

Product Description

Fabricated Tungsten Alloys For Oil And Gas Drilling Industries
Xi'an Kefeng Powder Metallurgy Co., has involved in manufacturing the high tech materials like High Density and Strength Tungsten Alloy Refractory Metal products, technologies and development expertise for the high performance demands of the oil and gas drilling industry since year of 1999.

As one of the chinese leading producers of refractory metals such as tungsten, tungsten alloy WNiFe/WNiCu, WCu, molybdenum and pure tungsten,

Kefengs' tungsten alloys has become an essential material for a wide variety of applications including balance weights, radiation protection, vibration absorbers, heat transfer and drilling bars. It has the highest melting point of any metal and its high density is equaled only by gold, platinum, and a few other rare and expensive metals.
 

Protecting Data Logging Instrumentation
The radiation shielding properties of tungsten alloy materials are excellent for use in fabricating products to enclose data logging instrumentation and isotopes, essential to locating oil and gas deposits, by which the shielding the instrumentation and  personnel from radiation it dramatically improves the performance of the data logging. These tungsten alloy parts enhance real-time data logging while optimizing the drilling performance, improve rates of drilling stability and reduce the cost and time of searching for these vital resources. Besides Kefengs' tungsten alloy products shield the gamma camera and sensors from the grueling work of drilling through the earth's layers.
 

Sinker Bar
The high density of tungsten alloy is critical to the radiation shielding and is also extremely beneficial for sinker bar application. These high density weights or series of weights are attached to the down hole logging tool assemblies in order to add the extra weight to help the tool properly descend through the heavy borehole fluids.

Properties

Its Mechanical properties are of tensile strength, ductility and hardness plus other elemental metals, create a family of tungsten alloy materials that have found wide acceptance where a concentrated mass is required in a limited space. Tungsten alloys guarantee the strength and stability needed for the tough oil and gas drilling process.  Tungsten alloys are economically fabricated by powder metallurgy techniques and routinely machined by conventional methods. So it can be delivered both as a semi finished product for further processing by the customer or in accordance with the customer's drawing as a finished machined part.

 
Characteristics and features

As medical science developing, there is more and more radiation in our life, which has become a new trouble, such as X-ray radiation, gamma radiation (energetic electromagnetic radiation), radiation of alpha particles (helium atoms) beta particles (electrons) and cosmic radiation, etc.  In order to protect patients and other people safe from harmful effects of ionizing radiation, such as breast cancer, skin cancer, etc. One type of excellent radiation-absorbing medium is badly needed.
Experts find that radiation exposure could be reduced by maxing shielding. The density of a material is related to its radiation stopping ability. Higher density means better stopping power and shielding. With a higher density, tungsten alloy has a greater protection than lead. It is greater linear attenuation of gamma radiations means that less is required for equal shielding. Alternatively equal amounts of tungsten alloy shielding provide diminished exposure risks than equivalent lead shielding.

1. Can be machined to different shapes per customer drawings and requirements. 
2. Good corrosion resistance
3. High radiation absorption (superior to lead)
4. Simplified life cycle and high strength.
5.  Non-toxic material as a replacement to lead

Application

Tungsten alloy radiation shields are made to only allow radiation to go where it is actually needed. Our tungsten radiation shields guarantee that environmental radiation exposure is kept to an absolute minimum during the generation of X-ray radiation.  A particularly dense material with excellent shielding properties is needed to ensure that the surrounding tissue is protected and the radiation guided only to the intended locations where those are widely used in Medical and Industrial Radiation Shielding.

There is no licensing required for tungsten alloy materials. Tungsten alloys are stable at high temperatures. You can use one-third less material than lead for the same energy-absorbing effectiveness and also it is non-toxic.  You can use our high density tungsten alloys for shielding wherever radioactivity has to be controlled and directed.   Xi'an Kefeng Powder Metallurgy Co., Ltd. specializes in producing tungsten radiation shields according to customer's drawing.

1. Shielding components for X-ray tubes
2. Shutter blades for computer tomography
3. Shielding elements for detectors
4. Isotope containers for brachytherapy
5. Shielding elements for linear accelerators
6. Radioactive source containers
7. Gamma ray protection
8. Source holders for oil-well, logging, and industrial instrumentation
9. Collimators and shielding for cancer therapy machines
10. Syringe protection for radioactive injections

Meantime, those high performance tungsten alloy shielding components are widely used in the following applications:

1. Tungsten alloy radioactive source containers
2. gamma radiation shielding made by tungsten alloy
3. Shielding block of tungsten alloy
4. Source holders for oil well logging and industrial instrumentation
5. Tungsten alloy X-ray collimators
6. Tungsten alloy PET syringe shield
7. Shielding in cancer therapy machines
8. Syringe protection for radioactive injections
9. Tungsten alloy syringe shielding
10. Nuclear shielding wall
11. FDG container
12. Inspect welds
13. Nuclear testing equipment
14. Nuclear power plant shielding
15. Radiation shielding barrel
16. Large container inspection devices
17. Oncology Isotopic and accelerator based platforms
18. Pipe-line inspection Gamma
19. Defense for nuclear submarines

Technical parameters
 

Tungsten heavy alloy	WNiFe (ASTM B777, AMS-T-21014)				WNiCu (ASTM B777, AMS-T-21014)
Designation	90W	93W	95W	97W	90W	93W	95W
Density g/cm3)	16.85~17.30	17.15~17.85	17.75~18.35	18.25~18.85	16.85~17.30	17.17~17.85	17.75~18.35
Tensile Strength (MPa)	758Min	758Min	724Min	689Min	648Min	648Min	684Min
Elongation (%)	5Min	5Min	3Min	2Min	2Min	2Min	1Min
Hardness (HRC)	32Max	33Max	34Max	35Max	32Max	33Max	34Max
Yield strength(MPa)	517Min	517Min	517Min	517Min	517Min	517Min	517Min