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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
Non-toxic
Easily machined with conventional tools
Hard and durable – no need for coating

During design of shielding, tungsten alloy radiation shielding is calculated according to requirements of shield to abate the multiple shielding materials' thickness.
Formula: K=e^{0.693 d / △1/2}
K: Shield weakened multiple
△ 1/2: The tungsten alloy radiation shielding material of the half-value layer values

 

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