The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 1986
Filed:
Dec. 21, 1984
Werner J Glantschnig, Belle Mead, NJ (US);
AT&T Technologies, Inc., Berkeley Heights, NJ (US);
Abstract
Nondestructive analysis of a porous, inhomogeneous, generally cylindrical object, such as a soot boule (12), comprised of n known components, where n is an integer, is achieved by scanning the boule with a beam (18) comprised of photons, each having a distinct energy within one n-1 energy groups. The intensity of the photons within each of the n-1 energy groups leaving the boule is detected by a detector (22) and is measured by a pulse height/scaler analyzer (30) at each of a plurality of separate heights t.sub.i of the beam (18) as measured from the center of the boule. A computer (31) determines each of n-1 attenuation coefficients .mu..sub.1 (r), .mu..sub.2 (r), . . . .mu..sub.n (r), representing the attenuation of the intensity of the photons in each of the n-1 energy groups, respectively, at each height t.sub.i of the beam in accordance with the output data furnished by the scaler/analyzer. From the n-1 attenuation coefficients, the computer (31) determines the density .rho.(r) and the respective molecular mass fractions x.sub.1 (r), x.sub.2 (r) . . . x.sub.n (r) of the n molecular components of the boule (12) at each height t.sub.i of the beam.