ASTM STP43898S
The Electron Microscope in the Determination of Particle Size Characteristics
Название (английский):
ASTM STP43898S
The Electron Microscope in the Determination of Particle Size Characteristics
- Статус документа:
- D
- Формат:
- Электронный (PDF)
- SKU:
- ASTM STP43898S
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Abstract
As early as 1900 it was known that an axially symmetric magnetic field could converge a beam of electrons, and not long after it was found possible by such means to form actual electron images of an emitting source. The work of H. Busch, pu...
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