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GB1428305A - Foreign particle detector - Google Patents

Foreign particle detector

Info

Publication number
GB1428305A
GB1428305A GB348374A GB348374A GB1428305A GB 1428305 A GB1428305 A GB 1428305A GB 348374 A GB348374 A GB 348374A GB 348374 A GB348374 A GB 348374A GB 1428305 A GB1428305 A GB 1428305A
Authority
GB
United Kingdom
Prior art keywords
container
ray source
jan
source
containers
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
GB348374A
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.)
Hexion Inc
Original Assignee
Borden Inc
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 Borden Inc filed Critical Borden Inc
Publication of GB1428305A publication Critical patent/GB1428305A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
    • G01V5/20—Detecting prohibited goods, e.g. weapons, explosives, hazardous substances, contraband or smuggled objects
    • G01V5/22—Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34—Sorting according to other particular properties
    • B07C5/3416—Sorting according to other particular properties according to radiation transmissivity, e.g. for light, x-rays, particle radiation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • G01N23/043—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using fluoroscopic examination, with visual observation or video transmission of fluoroscopic images

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Immunology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Radiology & Medical Imaging (AREA)
  • Multimedia (AREA)
  • Pathology (AREA)
  • Toxicology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

1428305 Sorting utilizing radiation detectors BORDEN Inc 25 Jan 1974 [26 Jan 1973] 03483/74 Heading G1A Containers are examined with x-rays, and those containing undesired solid bodies are rejected. In Fig. 1 containers 12 are carried on belt 14 to a screw drive 20 which is driven in synchronism with the mains A.C. supply by a motor 22. When a container reaches the region of x-ray source 26 the source is activated by a light source and detector 30, 32; the x-ray source is synchronized with the mains supply so that the container, whose position is determined by the A.C. driven screw, is opposite the x-ray source when emission occurs. After passing through the container the x-rays strike image intensifier 28, producing an image at 29. This is scanned by TV camera 34 and displayed on TV monitor 40 so that any solid body appears as a bright spot. Such a spot is detected by photo-multiplier 44 whose output, suitably delayed, operates a rejector 48. Masks 36, 38, 42 control the various fields of view; further control is possible by processing the signals from the camera 34 so as to display only a part of its field of view at 40, Fig. 2 (not shown). This processing also includes pre-set thresholding so that the sensitivity may be controlled in different parts of the display.
GB348374A 1973-01-26 1974-01-25 Foreign particle detector Expired GB1428305A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US32706073A 1973-01-26 1973-01-26

Publications (1)

Publication Number Publication Date
GB1428305A true GB1428305A (en) 1976-03-17

Family

ID=23274965

Family Applications (1)

Application Number Title Priority Date Filing Date
GB348374A Expired GB1428305A (en) 1973-01-26 1974-01-25 Foreign particle detector

Country Status (5)

Country Link
JP (1) JPS49111696A (en)
DE (1) DE2347973C2 (en)
FR (1) FR2215870A5 (en)
GB (1) GB1428305A (en)
IT (1) IT997866B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2121535A (en) * 1982-06-02 1983-12-21 Anglo Amer Corp South Africa Detector for use in sorting system
EP1158842A1 (en) * 1999-03-02 2001-11-28 Hamamatsu Photonics K.K. X-ray generator, x-ray imaging apparatus and x-ray inspection system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5858466A (en) * 1981-10-05 1983-04-07 Toyo Seikan Kaisha Ltd Selecting device for fruit containing seed
SE9102894L (en) * 1991-10-07 1992-07-13 Wahlquists Verkstaeder Ab DEVICE FOR SORTING OF WASTE WASTE
DE19610093A1 (en) * 1996-03-15 1997-09-18 Bsbg Bremer Sonderabfall Berat Process for sorting used batteries and / or accumulators and device for carrying out the process
CN101767094A (en) * 2009-01-06 2010-07-07 优必选(上海)机械有限公司 Method and device for sorting wood according to colors and wood grains

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1574111B1 (en) * 1967-08-18 1971-12-09 Mueller C H F Gmbh CIRCUIT ARRANGEMENT FOR A PROCESS FOR SEPARATING INHOMOGENOUS COMPONENTS
US3624397A (en) * 1969-10-01 1971-11-30 Trw Inc Radiographic method for the detection of residual core material comprising the use of radiographically detectable powder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2121535A (en) * 1982-06-02 1983-12-21 Anglo Amer Corp South Africa Detector for use in sorting system
EP1158842A1 (en) * 1999-03-02 2001-11-28 Hamamatsu Photonics K.K. X-ray generator, x-ray imaging apparatus and x-ray inspection system
EP1158842A4 (en) * 1999-03-02 2003-01-15 Hamamatsu Photonics Kk X-ray generator, x-ray imaging apparatus and x-ray inspection system
US6816573B2 (en) 1999-03-02 2004-11-09 Hamamatsu Photonics K.K. X-ray generating apparatus, X-ray imaging apparatus, and X-ray inspection system

Also Published As

Publication number Publication date
IT997866B (en) 1975-12-30
JPS49111696A (en) 1974-10-24
DE2347973C2 (en) 1983-11-24
DE2347973A1 (en) 1974-08-08
FR2215870A5 (en) 1974-08-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee