Radiant energy – Inspection of solids or liquids by charged particles – Including a radioactive source
Patent
1991-02-25
1992-06-02
Howell, Janice A.
Radiant energy
Inspection of solids or liquids by charged particles
Including a radioactive source
250367, 378 50, G01N 2316, G01B 1502
Patent
active
051189402
ABSTRACT:
Apparatus for continuously determining the basis weight of paper simultaneously at multiple points across the full width of a substrate. The apparatus includes a radioactive source which extends across one side of the web of paper. A detector array, on the opposite side of the substrate, detects the emission from the source. The array includes scintillating fibers and multi- or single-anode photomultipliers which may be connected by a scintillating or non-scintillating fiber optic elements to the photomultiplier.
REFERENCES:
patent: 3868510 (1975-02-01), Murata et al.
patent: 4682034 (1987-07-01), Saint et al.
patent: 4696023 (1987-09-01), Kuusi
Binns Walter R.
Davis Michael J.
Epstein John W.
Klarmann Joseph
Denk Paul M.
Hanig Richard
Howell Janice A.
Jefferson Smurfit Corporation
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