📑 From analog to digital X-ray sources
X-rays were first discovered by German physicist Roentgen about 130 years ago, and at that time, unknown rays were discovered, and X-rays were combined with unknown rays and named X-rays. Since then, it has contributed greatly to improving the quality of human life in various fields such as medical care, security, search, and non-destructive testing, and in particular, has provided a dramatic driving force for the development of diagnostic imaging devices.
These X-ray-based diagnostic imaging devices are composed of two key elements: an “X-ray source” that emits X-rays and an “X-ray detector” that detects the irradiated X-rays. Based on this, the concept of so-called “digital X-ray imaging equipment” has begun to be derived.
Existing X-ray sources are made by heating a filament like an incandescent bulb to 2,000 degrees. X-rays are generated in the process of accelerating electrons coming out of high temperature and colliding them with metal. In the process of heating up and cooling down, radiation problems occur.
📑 Cabon nanotube(CNT)
Nanotubes have a cylindrical fullerene-based structure, and are named carbon nanotubes because they are made in the shape of long, hollow tubes with a membrane made of one layer of carbon atoms called graphene.
Since it was first discovered in 1991 by Dr. Sumio Iijima of the NEC Research Institute, a Japanese electronics company, it has the strongest strength among the materials discovered so far. Its strength is more than 100 times that of iron, its development potential is high, and its conductivity is also good, so VSI applied it to develop an X-ray static eliminator 'Ionizer' and a small digital X-ray camera for dental and chest use.
CLAROX Portable X-ray