CA931287A - Method and apparatus for detecting x-ray radiation using a cholesteric detector - Google Patents

Method and apparatus for detecting x-ray radiation using a cholesteric detector

Info

Publication number
CA931287A
CA931287A CA059007A CA59007A CA931287A CA 931287 A CA931287 A CA 931287A CA 059007 A CA059007 A CA 059007A CA 59007 A CA59007 A CA 59007A CA 931287 A CA931287 A CA 931287A
Authority
CA
Canada
Prior art keywords
cholesteric
detector
detecting
ray radiation
ray
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA059007A
Other languages
English (en)
Inventor
N. Goldberg Newton
L. Fergason James
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Application granted granted Critical
Publication of CA931287A publication Critical patent/CA931287A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/02—Dosimeters
    • G01T1/04—Chemical dosimeters
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/36—Steroidal liquid crystal compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2219/00—Aspects relating to the form of the liquid crystal [LC] material, or by the technical area in which LC material are used
    • C09K2219/17—Aspects relating to the form of the liquid crystal [LC] material, or by the technical area in which LC material are used used as a medium, in which detection of chemical compounds takes place
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S204/00—Chemistry: electrical and wave energy
    • Y10S204/901—Effecting a color change by wave energy

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Steroid Compounds (AREA)
  • Measurement Of Radiation (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Substances (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
CA059007A 1968-08-22 1969-08-08 Method and apparatus for detecting x-ray radiation using a cholesteric detector Expired CA931287A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75458268A 1968-08-22 1968-08-22

Publications (1)

Publication Number Publication Date
CA931287A true CA931287A (en) 1973-07-31

Family

ID=25035440

Family Applications (1)

Application Number Title Priority Date Filing Date
CA059007A Expired CA931287A (en) 1968-08-22 1969-08-08 Method and apparatus for detecting x-ray radiation using a cholesteric detector

Country Status (8)

Country Link
US (1) US3657538A (de)
JP (1) JPS505068B1 (de)
BR (1) BR6911295D0 (de)
CA (1) CA931287A (de)
CH (1) CH529356A (de)
DE (1) DE1940348C3 (de)
FR (1) FR2016215B1 (de)
GB (1) GB1218725A (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3888892A (en) * 1972-10-24 1975-06-10 Xerox Corp Liquid crystalline compounds
US3998860A (en) * 1974-08-26 1976-12-21 Djinnii Industries, Inc. Solidification retardation of liquid crystalline compositions with steroid derivatives of isostearyl carbonate
DE3205892A1 (de) * 1982-02-18 1983-08-25 Bayer Ag, 5090 Leverkusen Verfahren zur einstellung der temperatursensibilitaet cholesterinischer fluessigkristalle
US5992996A (en) * 1998-08-10 1999-11-30 Sawyer; Robert N. Protective eyewear including an integral thermoluminescent dosimetry chip for measuring facial exposure to ionizing radiation
US7780913B2 (en) * 2005-08-26 2010-08-24 Lawrence Livermore National Security, Llc Paint for detection of corrosion and warning of chemical and radiological attack
US7780912B2 (en) * 2005-08-26 2010-08-24 Lawrence Livermore National Security, Llc Paint for detection of radiological or chemical agents

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3114836A (en) * 1960-03-04 1963-12-17 Westinghouse Electric Corp Thermal imaging devices utilizing a cholesteric liquid crystalline phase material
US3409404A (en) * 1963-11-13 1968-11-05 Westinghouse Electric Corp Analytical methods and devices employing cholesteric liquid crystalline materials
FR1527311A (fr) * 1966-06-13 1968-05-31 Westinghouse Electric Corp Compositions cristallines-liquides cholestériques présentant le phénomène d'hystérésis pour dispositifs d'enregistrement

Also Published As

Publication number Publication date
DE1940348A1 (de) 1970-03-05
BR6911295D0 (pt) 1973-03-13
JPS505068B1 (de) 1975-02-27
CH529356A (de) 1972-10-15
DE1940348C3 (de) 1973-11-29
US3657538A (en) 1972-04-18
DE1940348B2 (de) 1973-05-17
GB1218725A (en) 1971-01-13
FR2016215B1 (de) 1973-10-19
FR2016215A1 (de) 1970-05-08

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