Method and apparatus for determining the concentration of a heav

Details Method and apparatus for determining the concentration of a heav Method and apparatus for determining the concentration of a heav

1994-05-16

1996-04-09

Fields, Carolyn E.

Radiant energy

Geological testing or irradiation

378 88, G01N 23203

Patent

active

055064060

ABSTRACT:
A method of determining the concentration of incombustible material in a predetermined volume of coal includes irradiating the volume with .gamma.-rays from a first source having a first, low energy; and simultaneously irradiating the volume with .gamma.-rays from a second source having a second, higher energy. Rays of back-scattered radiation from the irradiated volume are detected. An analogue signal for each ray that is detected is generated, an amplitude of said signal being representative of the energy of the ray. Each analogue signal is converted into an equivalent digital signal. For all values of signals in a predetermined range, the number of digital signals having the same value that are detected in a predetermined time period is determined and said signals of the same value are stored together to provide a frequency spectrum. The frequency spectrum is processed to provide the concentration of incombustible material in the volume.

REFERENCES:
patent: 3829686 (1974-08-01), Schultz et al.
patent: 4566114 (1986-01-01), Watt et al.
Wesolinski et al., "A Portable Coal Face Ash Monitor Based on Dual Energy Gamma Radiation", pp. 33-46, Symposium on Nuclear Techniques in the Exploration & Exploitation of Energy and Mineral Resources, Vienna Jun. 5-8, 1990.

Affiliated with

Also associated with

Rating

Method and apparatus for determining the concentration of a heav does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for determining the concentration of a heav, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for determining the concentration of a heav will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-140617