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Title: X-ray source assembly having enhanced output stability, and fluid stream analysis applications thereof

Abstract

An x-ray source assembly (2700) and method of operation are provided having enhanced output stability. The assembly includes an anode (2125) having a source spot upon which electrons (2120) impinge and a control system (2715/2720) for controlling position of the anode source spot relative to an output structure. The control system can maintain the anode source spot location relative to the output structure (2710) notwithstanding a change in one or more operating conditions of the x-ray source assembly. One aspect of the disclosed invention is most amenable to the analysis of sulfur in petroleum-based fuels.

Inventors:
; ; ; ; ; ;
Publication Date:
Research Org.:
X-Ray Optical System, Inc., East Greenbush, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1176171
Patent Number(s):
7,209,545
Application Number:
10/859,901
Assignee:
X-Ray Optical System, Inc. OSTI
DOE Contract Number:
FG02-96ER82918
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Citation Formats

Radley, Ian, Bievenue, Thomas J., Burdett Jr., John H., Gallagher, Brian W., Shakshober, Stuart M., Chen, Zewu, and Moore, Michael D.. X-ray source assembly having enhanced output stability, and fluid stream analysis applications thereof. United States: N. p., 2007. Web.
Radley, Ian, Bievenue, Thomas J., Burdett Jr., John H., Gallagher, Brian W., Shakshober, Stuart M., Chen, Zewu, & Moore, Michael D.. X-ray source assembly having enhanced output stability, and fluid stream analysis applications thereof. United States.
Radley, Ian, Bievenue, Thomas J., Burdett Jr., John H., Gallagher, Brian W., Shakshober, Stuart M., Chen, Zewu, and Moore, Michael D.. Tue . "X-ray source assembly having enhanced output stability, and fluid stream analysis applications thereof". United States. doi:. https://www.osti.gov/servlets/purl/1176171.
@article{osti_1176171,
title = {X-ray source assembly having enhanced output stability, and fluid stream analysis applications thereof},
author = {Radley, Ian and Bievenue, Thomas J. and Burdett Jr., John H. and Gallagher, Brian W. and Shakshober, Stuart M. and Chen, Zewu and Moore, Michael D.},
abstractNote = {An x-ray source assembly (2700) and method of operation are provided having enhanced output stability. The assembly includes an anode (2125) having a source spot upon which electrons (2120) impinge and a control system (2715/2720) for controlling position of the anode source spot relative to an output structure. The control system can maintain the anode source spot location relative to the output structure (2710) notwithstanding a change in one or more operating conditions of the x-ray source assembly. One aspect of the disclosed invention is most amenable to the analysis of sulfur in petroleum-based fuels.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 24 00:00:00 EDT 2007},
month = {Tue Apr 24 00:00:00 EDT 2007}
}

Patent:

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  • An x-ray source assembly and method of operation are provided having enhanced output stability. The assembly includes an anode having a source spot upon which electrons impinge and a control system for controlling position of the anode source spot relative to an output structure. The control system can maintain the anode source spot location relative to the output structure notwithstanding a change in one or more operating conditions of the x-ray source assembly. One aspect of the disclosed invention is most amenable to the analysis of sulfur in petroleum-based fuels.
  • Multi-stage apparatuses are described, which operate with absorption cycles, can be used for harnessing heat energy and/or work and are distinguished by high efficiency and/or high adaptability. The apparatuses operate with a working fluid which can be absorbed in an absorbent and include as their primary components so-called exchange units, and possibly at least one pressure machine in addition. The term ''exchange unit'' is intended to encompass absorbers, condensers, resorbers, evaporators, desorbers, and absorbers such as are conventional in absorber and resorber machines; the term ''pressure machines'' is intended to encompass compressors and expansion machines. Preferred forms of embodiment ofmore » the present apparatus are heat pumps, which can be adapted over wide ranges to variable outdoor temperatures and variable heat requirements.« less
  • An x-ray source having a cathode and a disc-shaped anode with a peripheral surface at constant radius from the anode axis opposed to the cathode. The anode has stub axle sections rotatably carried in heat conducting bearing plates which are mounted by thermoelectric coolers to bellows which normally bias the bearing plates to a retracted position spaced from opposing anode side faces. The bellows cooperate with the x-ray source mounting structure for forming closed passages for heat transport fluid. Flow of such fluid under pressure expands the bellows and brings the bearing plates into heat conducting contact with the anodemore » side faces. A worm gear is mounted on a shaft and engages serrations in the anode periphery for rotating the anode when flow of coolant is terminated between x-ray emission events.« less
  • An x-ray source is disclosed having a cathode and a disc-shaped anode with a peripheral surface at constant radius from the anode axis opposed to the cathode. The anode has stub axle sections rotatably carried in heat conducting bearing plates which are mounted by thermoelectric coolers to bellows which normally bias the bearing plates to a retracted position spaced from opposing anode side faces. The bellows cooperate with the x-ray source mounting structure for forming closed passages for heat transport fluid. Flow of such fluid under pressure expands the bellows and brings the bearing plates into heat conducting contact withmore » the anode side faces. A worm gear is mounted on a shaft and engages serrations in the anode periphery for rotating the anode when flow of coolant is terminated between x-ray emission events. 5 figs.« less
  • These polysulphides are derived from at least two olefins and are suitable as lubricating and industrial oil additives. They have a proportion of sulphur of 22 to 45% for a practically zero content of chlorine and a refractive index nd20 ranging from 515 to 1.