Terahertz tomography

Terahertz Tomography

Terahertz tomography (pronunciation: te·ra·hertz | \ ˈte-rə-ˌhərts \, to·mog·ra·phy | \ tə-ˈmä-grə-fē \) is a medical imaging technique that uses terahertz radiation to create detailed images of the internal structure of an object or body. The term originates from the Greek words 'tera' meaning monster and 'hertz' referring to the unit of frequency, and 'tomography' from the Greek words 'tomo' meaning slice or section and 'graphy' meaning to write.

Procedure

In terahertz tomography, a terahertz wave is transmitted through or reflected off the object being imaged. The wave that emerges is detected and analyzed to create a detailed, three-dimensional image of the object's internal structure. This technique is particularly useful in medical diagnostics as it allows for non-invasive imaging of the human body.

Applications

Terahertz tomography has a wide range of applications in the medical field. It is used in cancer detection, as terahertz waves can differentiate between normal and cancerous tissue. It is also used in dermatology to image skin layers and in dentistry for imaging teeth and gums. Other applications include pharmaceuticals, where it is used to analyze the structure of drugs, and security screening, where it can detect concealed objects.

Advantages and Limitations

The main advantage of terahertz tomography is that it is non-invasive and does not use ionizing radiation, making it safer than other imaging techniques such as X-ray or CT scan. However, it has limitations in terms of penetration depth and resolution, and is not suitable for imaging deep tissues or organs.

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Terahertz tomography