• Tungsten Heavy Alloy Radiation Syringe Shielidng Sleeve (W-Ni-Fe/W-Ni-Cu)
  • Tungsten Heavy Alloy Radiation Syringe Shielidng Sleeve (W-Ni-Fe/W-Ni-Cu)
  • Tungsten Heavy Alloy Radiation Syringe Shielidng Sleeve (W-Ni-Fe/W-Ni-Cu)
  • Tungsten Heavy Alloy Radiation Syringe Shielidng Sleeve (W-Ni-Fe/W-Ni-Cu)

Tungsten Heavy Alloy Radiation Syringe Shielidng Sleeve (W-Ni-Fe/W-Ni-Cu)

Application: Medical
Standard: GB, ASTM
Purity: 85W-97W
Alloy: Alloy
Shape: Irregular
Type: Cusotom Processed
Customization:

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Mr. Wang Xingyan
International Department Manager
Gold Member Since 2018

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Basic Info.

Model NO.
W-Ni-Fe, W-Ni-Cu
Composition
W Content: 85-97%, W-Ni-Fe, W-Ni-Cu
Density
15.8-18.50 g/cm3
Surface
Sinter State, Grind State
Transport Package
Export
Trademark
Satellite
Origin
Mudanjiang
HS Code
8101999000
Production Capacity
200pieces/Year

Product Description

Tungsten Medical Radiation Shielding
  Tungsten Medical Radiation Shielding
  Tungsten heavy alloy medical radiation shielding is used in applications such as collimator, nuclear shielding, beamstop, PET syringe shield, vial shield, isotope container, FDG container, multi leaf collimator etc.
   Main applications for Tungsten Medical Radiation Shielding:
Brachytherapy: 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). 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 from radiation.
  Positron Emission Tomography (PET)
  Positron emission tomography (PET) is one of the nuclear medicine techniques available for diagnostics. Whilst X-rays provide information on the structure of the body, PET shows the chemical function of a particular organism. PET involves the injection of FDG (a glucose-based radionuclide) from a shielded syringe. As the FDG travels through the patient's body it emits gamma radiation that is detected by a gamma ray camera, from which the chemical activity within cells and organs can be seen. Any abnormal chemical activity may be a sign that tumors are present. PET scans are frequently used to detect cancerous tumors and diseases of the brain and coronary arteries. Applications for tungsten medical radiation shielding in PET include: PET syringe shield Technetium generator Technetium generator.
   Technetium generator
  What is Nuclear Medicine? Nuclear medicine is a medical specialty involving the application of radioactive substances in the diagnosis and treatment of disease. Nuclear medicine scans are usually conducted by radiographers. Radiation is an effective tool within nuclear medicine for both diagnostics and treatment of patients. Techniques such as SPECT and PET utilize radioactive materials injected into the patient, which are then monitored by gamma cameras (SPECT) or scanners (PET) to detect the presence of tumours in the body. The Applications of Nuclear Medicine Tungsten Radiation Shielding Tungsten alloy has excellent radiation attenuation properties, with thinner thickness but high effective in blocking harmful X-ray and gamma radiation. Tungsten alloy shielding is the best choice in nuclear medicine. And nuclear medicine tungsten radiation shielding is usually used in the nuclear medical equipment , such as collimator, linear accelerator, multileaf collimator,computed tomography,X-ray energy, absorptiometry, and gamma knife. Why Use Nuclear Medicine Tungsten Radiation Shielding? The advantages of tungsten alloy: High radiation attenuation; good shielding capability Thinner and often lighter than equivalent lead shields Easy to sterilise and keep clean.
   Why Do We Need Tungsten Alloy Radiation Shielding? 

  With rapid development of medical science, more and more tungsten radiation shieldings are used in our lives. Medical instruments x-ray and nuclear power stations have become widespread and are now affecting all our lives. It is essential that people paid more attention to radiation and even more important for the institutions to protect public from the radiation exposure and to make sure to protect every radiation source of 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, doctors, nurses and other people who may be exposed to radiation, sources of the radiation must be safely separated and shielded. It is crucial that holding and delivery instruments for radioactive materials would keep the radiation levels low enough, not to create harmful effects of ionizing radiation such as breast cancer, skin cancer, etc. Lead and steel are the traditional protection materials, but tungsten alloy radiation shielding is without a doubt the best solution. Excellent radiation-absorption and radiation shielding, twice the density of lead and good physical resistance are main reasons to use tungsten alloy radiation shielding. 

Advantage of Tungsten Alloy Radiation Shielding 

Experts find that radiation exposure could be reduced by maxing shielding. 


  The density oTungsten Alloy Radiation Shieldingf a material is related to its radiation protection ability. Higher density means better stopping and absorbing radiation ray . Due to a higher density than most other materials, tungsten radiation shielding has a much higher ability of absorbing and stopping almost rays than others metals such as the traditional radiation shielding - lead. Tungsten radiation shielding greater linear attenuation of gamma radiations means that less is required for equal shielding. Alternatively equal amounts of tungsten shielding provide diminished exposure risks than equivalent lead 

  Tungsten heavy alloy is the right material for radiation protection, as its combination of radiographic density (more than 60% denser than lead), machinability, good corrosion resistance, high radiation absorption (superior to lead and steel), simplified life cycle and high strength. Tungsten radiation shielding can provide the same degree of protection as lead whilst significantly reducing the overall volume and thickness of shields and containers. Besides, compared with lead or depleted uranium (DU),tungsten radiation shielding is more friendship for the environments both lead and DU for it is no any toxic.
 

Size

Manufactured per drawing/Sample

Material

W-Ni-Fe, W-Ni-Cu

Purity

W 85-98 %

Density

16.75-18.75g/ cc

Application

Medical field 

Standard

ASTM B 777-07/AMS-T-21014/AMS7725E/ Standard for other military purpose high density tungsten alloy 

Surface

Turning state / Polishing state /Grinding state/ Sand blasting treatment / Blackening 

Packing

Wooden boxes, cartons and steel drum

Technical Specification : 
 
 
Tungsten Heavy Metal Grade Chart
MIL-T-21014 Rev D Class 1 Class 2 Class 3 Class 4 Class 1 Class 2 Class 3
SAE-AMS-T-21014 Class 1 Class 2 Class 3 Class 4 Class 1 Class 2 Class 3
ASTM B777-07 Class 1 Class 2 Class 3 Class 4 Class 1 Class 2 Class 3
AMS 7725 C 7725 C
 

 

 
7725 C
 

 
Matrix (wt. %) 90.0% W 92.5% W 95.0% W 97.0% W 90.0% W 92.5% W 95.0% W
Binder (wt. %) 10.0% Ni-Fe 7.5% Ni-Fe 5.0% Ni-Fe 3.0% Ni-Fe 10.0% Ni-Cu 7.5% Ni-Fe 5.0% Ni-Cu
Nominal Density (g/cm3) 16.85-17.25 17.15-17.85 17.75-18.35 18.25-18.85 16.85-17.25 17.15-17.85 17.75-18.35
Nominal Density (lb/in3) 0.614 0.632 0.650 0.668 0.614 0.632 0.650
Typical Hardness (Rc) 26 26 28 30 26 26 28
Ultimate Tensile Strength - Min. (psi) 110,000 110,000 105,000 100,000 94,000 110,000 94,000
0.2% Offset Yield Strength - Min. (psi) 75,000 75,000 75,000 75,000 75,000 75,000 75,000
Magnetic Characteristics Slightly magnetic Slightly magnetic Slightly magnetic Slightly magnetic Nonmagnetic Nonmagnetic Nonmagnetic
  
Tungsten Heavy Alloy Radiation Syringe Shielidng Sleeve (W-Ni-Fe/W-Ni-Cu)
Tungsten Heavy Alloy Radiation Syringe Shielidng Sleeve (W-Ni-Fe/W-Ni-Cu) Tungsten Heavy Alloy Radiation Syringe Shielidng Sleeve (W-Ni-Fe/W-Ni-Cu)

 

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