irradiation of US Army
-> a linking of the technology with the military in the minds of the public
1958 World first commercial food irradiation (spices) at Stuttgart, Germany
2. X-rays
They are caused by atomic transitions and they are usually less energetic than gamma rays.
X-rays with varying energies are generated by machines.
→ To produce the X-rays, a beam of electrons
Electron Transistor),를 개발하고 quantum mechanics의 전자구조효과를 적용하였다.
③ 1979, Dr.Mimira가 Bell 실험소의 Dr.Dingle에게 단서를 얻어 HEMT를 발명했다는 소문으로 인해 노벨상을 받지 못하였다.
④ 1980, 서독의 Dr.Klitzing가 프랑스의 Grenoble 연구 센터에서 낮은 온도와 높은 전자장이 노출된 환경에서 MOSFET의
irradiation, and adding preservatives or inert gases such as carbon dioxide. Other methods that not only help to preserve food, but also add flavor, include pickling, salting, smoking, preserving in syrup or alcohol, sugar crystallization and curing.
As the preceding paragraphs say, many kinds of food preservation technologies are around for preventing foods from the undesirable results. Specifi
Who is interested in the process?
Alongside traditional methods of processing and preserving food, the technology of food irradiation is gaining more and more attention around the world. Although regarded as a new technology by some individuals, research on food irradiation dates back to the turn of the century with the first USA and British patents being issued in 1905 for the use of ionizing
Tungsten filament was
heated to generate electron.
Revolving 270, the electrons
are directed by
electromagnetic field
resulting collision onto the
source surface
After heated to certain
degree, source gas was
generated
The sensor monitors the
thickness of deposited film.
High vacuum should be kept in
the chamber not to contain
oxigen
gas which damages
substrat