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 detectorInfo
- 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
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)
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)
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 |
US7780912B2 (en) * | 2005-08-26 | 2010-08-24 | Lawrence Livermore National Security, Llc | Paint for detection of radiological or chemical agents |
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 |
Family Cites Families (3)
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 |
-
1968
- 1968-08-22 US US754582A patent/US3657538A/en not_active Expired - Lifetime
-
1969
- 1969-07-15 GB GB35638/69A patent/GB1218725A/en not_active Expired
- 1969-08-05 BR BR211295/69A patent/BR6911295D0/pt unknown
- 1969-08-08 CA CA059007A patent/CA931287A/en not_active Expired
- 1969-08-08 DE DE1940348A patent/DE1940348C3/de not_active Expired
- 1969-08-14 CH CH1235869A patent/CH529356A/de not_active IP Right Cessation
- 1969-08-19 JP JP44065081A patent/JPS505068B1/ja active Pending
- 1969-08-22 FR FR6928916A patent/FR2016215B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1218725A (en) | 1971-01-13 |
BR6911295D0 (pt) | 1973-03-13 |
JPS505068B1 (de) | 1975-02-27 |
DE1940348C3 (de) | 1973-11-29 |
US3657538A (en) | 1972-04-18 |
FR2016215A1 (de) | 1970-05-08 |
DE1940348B2 (de) | 1973-05-17 |
FR2016215B1 (de) | 1973-10-19 |
DE1940348A1 (de) | 1970-03-05 |
CH529356A (de) | 1972-10-15 |
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