GB2291707A - Detection of irradiated samples - Google Patents

Detection of irradiated samples

Info

Publication number
GB2291707A
GB2291707A GB9521255A GB9521255A GB2291707A GB 2291707 A GB2291707 A GB 2291707A GB 9521255 A GB9521255 A GB 9521255A GB 9521255 A GB9521255 A GB 9521255A GB 2291707 A GB2291707 A GB 2291707A
Authority
GB
United Kingdom
Prior art keywords
detection
luminescence
irradiated samples
irradiation
extent
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.)
Granted
Application number
GB9521255A
Other versions
GB9521255D0 (en
GB2291707B (en
Inventor
David C W Sanderson
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.)
University of Glasgow
Original Assignee
University of Glasgow
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
Priority claimed from GB939308542A external-priority patent/GB9308542D0/en
Application filed by University of Glasgow filed Critical University of Glasgow
Priority to GB9521255A priority Critical patent/GB2291707B/en
Publication of GB9521255D0 publication Critical patent/GB9521255D0/en
Publication of GB2291707A publication Critical patent/GB2291707A/en
Application granted granted Critical
Publication of GB2291707B publication Critical patent/GB2291707B/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N21/6408—Fluorescence; Phosphorescence with measurement of decay time, time resolved fluorescence

Landscapes

  • Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Abstract

There is described apparatus and method for detecting irradiated samples, for example foodstuffs, using photostimulated luminescence. The extent of irradiation is detected by subjecting the sample to a pulsed stimulation source which causes luminescence to be emitted from the irradiated sample. Means are provided for measuring the emitted luminescence which corresponds to the extent of irradiation. Apparatus for putting this method into practice is also disclosed. <IMAGE>
GB9521255A 1993-04-24 1994-04-25 Detection of irradiated samples Revoked GB2291707B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9521255A GB2291707B (en) 1993-04-24 1994-04-25 Detection of irradiated samples

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB939308542A GB9308542D0 (en) 1993-04-24 1993-04-24 Detection of irradiated samples
GB9521255A GB2291707B (en) 1993-04-24 1994-04-25 Detection of irradiated samples
PCT/GB1994/000877 WO1994025851A1 (en) 1993-04-24 1994-04-25 Detection of irradiated samples

Publications (3)

Publication Number Publication Date
GB9521255D0 GB9521255D0 (en) 1995-12-20
GB2291707A true GB2291707A (en) 1996-01-31
GB2291707B GB2291707B (en) 1997-04-16

Family

ID=26302806

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9521255A Revoked GB2291707B (en) 1993-04-24 1994-04-25 Detection of irradiated samples

Country Status (1)

Country Link
GB (1) GB2291707B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2086038A (en) * 1980-10-10 1982-05-06 Rattemeyer Martin Examining biological materials
DE3339750A1 (en) * 1983-11-03 1985-05-23 Battelle-Institut E.V., 6000 Frankfurt Process and apparatus for detecting radioactively irradiated organic materials
EP0430150A2 (en) * 1989-11-29 1991-06-05 Fritz-Albert Popp Method for testing quality and quality changes of biological systems and organochemical compositions interacting with these systems using measurements of ultraweak photon emission

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2086038A (en) * 1980-10-10 1982-05-06 Rattemeyer Martin Examining biological materials
DE3339750A1 (en) * 1983-11-03 1985-05-23 Battelle-Institut E.V., 6000 Frankfurt Process and apparatus for detecting radioactively irradiated organic materials
EP0430150A2 (en) * 1989-11-29 1991-06-05 Fritz-Albert Popp Method for testing quality and quality changes of biological systems and organochemical compositions interacting with these systems using measurements of ultraweak photon emission

Also Published As

Publication number Publication date
GB9521255D0 (en) 1995-12-20
GB2291707B (en) 1997-04-16

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Legal Events

Date Code Title Description
773K Patent revoked under sect. 73(2)/1977