X-ray or gamma ray systems or devices – Specific application – Fluorescence
Reexamination Certificate
2005-02-22
2005-02-22
Glick, Edward J. (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Fluorescence
C378S044000, C378S045000
Reexamination Certificate
active
06859517
ABSTRACT:
Disclosed are an X-ray fluorescence (SRF) spectrometer and method for on-site and in-line determination of contaminant elements in lubricating oils and in fuel oils on board a marine vessel. An XRF source block13contains two radionuclide sources16, 17(e.g. Cd109and Fe55), each oriented180degrees from the other to excite separate targets. The Cd109source16excites sample lube oil flowing through a low molecular weight sample line18. The Fe55source17excites fuel oil manually presented to the source beam inside a low molecular weight vial26or other container. Two separate detectors A and B are arranged to detect the fluorescent x-rays from the targets, photons from the analyte atoms in the lube oil for example, and sulfur identifying x-rays from bunker fuel oil for example. The system allows both automated in-line and manual on-site analysis using one set of signal processing and multi-channel analyzer electronics34, 37as well as one computer39and user interface43.
REFERENCES:
patent: 3751661 (1973-08-01), Packer et al.
patent: 4125769 (1978-11-01), Marten et al.
patent: 4228353 (1980-10-01), Johnson
patent: 4388530 (1983-06-01), Lubecki et al.
patent: 4567012 (1986-01-01), Radcliff
patent: 4683759 (1987-08-01), Skarsvaag et al.
patent: 4720842 (1988-01-01), Kira et al.
patent: 4795903 (1989-01-01), Clayton
patent: 4959848 (1990-09-01), Parobek
patent: 5497008 (1996-03-01), Kumakhov
patent: 5598451 (1997-01-01), Ohno et al.
patent: 5657363 (1997-08-01), Hossain et al.
patent: 5712891 (1998-01-01), Benony et al.
patent: 5721759 (1998-02-01), Raatikainen
patent: 5742660 (1998-04-01), Majewski et al.
patent: 5982847 (1999-11-01), Nelson
patent: 6009760 (2000-01-01), Jakkula et al.
patent: 6012325 (2000-01-01), Ma
patent: 6031565 (2000-02-01), Getty et al.
patent: 6226347 (2001-05-01), Golenhofen
patent: 6285734 (2001-09-01), von Alfthan
patent: 6408048 (2002-06-01), Opsal et al.
Shepard Chester L.
Wilson Bary W.
Battelle (Memorial Institute)
Glick Edward J.
Song Hoon
Woodard Emhardt Moriarty McNett & Henry LLP
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