Monitoring

Radiant energy – Invisible radiant energy responsive electric signalling – With radiant energy source

Reexamination Certificate

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Reexamination Certificate

active

07902519

ABSTRACT:
The method includes providing the volume of waste in a monitoring space; providing a support, the support being provided with a plurality of detectors for radioactive material; monitoring the volume of waste for radioactive material, in one or more parts, to give a monitoring results; and correcting the monitoring result for geometry and/or attenuation to give a corrected result using a correction factor. The correction factor is obtained by a method that includes providing a simulation of an equivalent volume of waste free of radioactive material in an equivalent monitoring space, with equivalent detectors; providing a known activity radioactive source at one or more positions in the volume of waste; determining the detector response to the source in a position, a comparison of the response and known activity contributing to a correction function for that equal volume, one or more such correction functions providing the correction factor.

REFERENCES:
patent: 6452992 (2002-09-01), Umiastowski
patent: 6740887 (2004-05-01), Parvin et al.
patent: 6806475 (2004-10-01), Lightfoot et al.
patent: 7479628 (2009-01-01), Yeh et al.
patent: 2002/0163988 (2002-11-01), Nisius et al.
patent: 2003/0205677 (2003-11-01), Caldwell et al.
patent: 1 176 431 (2002-01-01), None
patent: 5-232238 (1993-09-01), None
patent: 6-160539 (1994-06-01), None
patent: WO 98/53341 (1998-11-01), None
Filβ P.; Relation Between the Activity of a High-Density Waste Drum and its Gamma Count Rate Measured with an Unshielded Ge Detector; Aug. 1995; Applied Radiation and Isotopes; vol. 46 Issue 8; pp. 805-812.
Liang J.H., Jiang S.H., Chou J.T., Chen C.C., Lin S.W., Lee C.H., Chiou S.T.; Parametric Study of Shell Source Method for Calibrating Radwaste Radioactivity Detection Systems; Apr. 1998; Applied Radiation and Isotopes; vol. 49 Issue 4; pp. 361-368.
Satoru Kawasaki et al.,Radioactivity Measurement of Drum Package Waste by a Computed-Tomography Technique, International Journal of Radiation Applications and Instrumentation: Part A, Applied Radiation and Isotopes, vol. 41, No. 10/11, Jan. 1990, pp. 983-987.
Jenq-Horng Liang et al.,Parametric Study of Shell-Source Method for Calibrating Radwaste Radioactivity Detection Systems, Applied Radiation and Isotopes, vol. 49, No. 4, 1998, pp. 361-368.
L. Dinescu et al.,On the Efficiency Calibration of a Drum Waste Assay System, Nuclear Instruments and Methods in Physics Research A, vol. 487, 2002, pp. 661-666.
O. Sima et al.,Efficiency Calibration of High Volume Samples Using the GESPECOR Software, Applied Radiation and Isotopes, vol. 61, 2004, pp. 123-127.
Modular Gamma Box and Container Counter, Canberra Industries, Inc., Oct. 2004.

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