Radiant energy – Inspection of solids or liquids by charged particles
Patent
1989-04-17
1990-12-04
Berman, Jack I.
Radiant energy
Inspection of solids or liquids by charged particles
250307, 250311, 250397, G01N 900
Patent
active
049755781
ABSTRACT:
Distribution of mass density of paper or other materials is determined by irradiating a sample with a burst of electron beams from an electron gun. The intensity levels of electron beams emerging from said sample are detected by an areal detector located immediately behind the sample. These intensity levels are processed to derive distribution of mass density information for the sample. The electron beam detector may be a photographic film or a realtime electron beam detector assembly coupled to computer controlled digital data processing and displaying equipment.
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Luner Philip
Tomimasu Hiroshi
Berman Jack I.
Nguyen Kiet T.
The Research Foundation of State University of NY
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