RU94044530A - Method and device for classification of particles - Google Patents

Method and device for classification of particles

Info

Publication number
RU94044530A
RU94044530A RU94044530/25A RU94044530A RU94044530A RU 94044530 A RU94044530 A RU 94044530A RU 94044530/25 A RU94044530/25 A RU 94044530/25A RU 94044530 A RU94044530 A RU 94044530A RU 94044530 A RU94044530 A RU 94044530A
Authority
RU
Russia
Prior art keywords
particles
particle
image
resulting image
substance
Prior art date
Application number
RU94044530/25A
Other languages
Russian (ru)
Other versions
RU2141109C1 (en
Inventor
Андерс Саффан Тэппер Ульф
Se]
Гузек Яцек
Ивор Вилльям Уоттерсон Джон
Pl]
Рахманиан Хейдар
Za]
Original Assignee
Де Бирз Индастриал Даймонд Дивижн (Проприетари) Лимитед (Za)
Де Бирз Индастриал Даймонд Дивижн (Проприетари) Лимитед
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 Де Бирз Индастриал Даймонд Дивижн (Проприетари) Лимитед (Za), Де Бирз Индастриал Даймонд Дивижн (Проприетари) Лимитед filed Critical Де Бирз Индастриал Даймонд Дивижн (Проприетари) Лимитед (Za)
Publication of RU94044530A publication Critical patent/RU94044530A/en
Application granted granted Critical
Publication of RU2141109C1 publication Critical patent/RU2141109C1/en

Links

Classifications

    • 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
    • G01N23/05—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 neutrons

Abstract

FIELD: measurement technology. SUBSTANCE: in compliance with method particles are classified depending on presence or absence of special substance in them. First example deals with analysis of particle of kimberlite examined for presence of diamonds. In this case each particle is irradiated by beam of fast neutrons at resonance energy level for special substance. Image characterizing passage of beam through particle is obtained for each particle. Particles are then classified depending on whether obtained image demonstrates presence or absence of special substance. This method may be enhanced by irradiation of particles with beams of neutrons at resonance and nonresonance levels. In this case resulting image is generated from transmission spectrum at both energy levels. Classification is performed later on basis of analysis of resulting image. EFFECT: improved efficiency of method and reliability of device.

Claims (1)

Частицы классифицируются в зависимости от наличия или отсутствия особого вещества в частицах. В одном примере частицы кимберлита анализируются на наличие алмаза. При этом способе каждая частица облучается пучком быстрых нейтронов при резонансном энергетическом уровне для особого вещества. Для каждой частицы получают изображение, которое характеризует пропускание пучка частицей. Частицы затем классифицируются в зависимости от того, показывает ли полученное изображение наличие особого вещества в частице или нет. Этот способ может быть усилен облучением частиц пучками нейтронов при резонансном и нерезонансном энергетических уровнях, при этом из спектра пропускания при обоих энергетических уровнях получают результирующее изображение. Затем проводится классификация на основе анализа результирующего изображения.Particles are classified according to the presence or absence of a particular substance in the particles. In one example, kimberlite particles are analyzed for diamond. In this method, each particle is irradiated by a beam of fast neutrons at a resonant energy level for a particular substance. For each particle, an image is obtained that characterizes the transmission of a beam by a particle. Particles are then classified depending on whether the resulting image shows the presence of a particular substance in the particle or not. This method can be enhanced by irradiating particles with neutron beams at resonant and non-resonant energy levels, and the resulting image is obtained from the transmission spectrum at both energy levels. Then, classification is carried out based on the analysis of the resulting image.
RU94044530A 1993-12-22 1994-12-21 Method and device for classifying particles RU2141109C1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA939617 1993-12-22
ZA93/9617 1993-12-22

Publications (2)

Publication Number Publication Date
RU94044530A true RU94044530A (en) 1996-10-20
RU2141109C1 RU2141109C1 (en) 1999-11-10

Family

ID=25583548

Family Applications (1)

Application Number Title Priority Date Filing Date
RU94044530A RU2141109C1 (en) 1993-12-22 1994-12-21 Method and device for classifying particles

Country Status (5)

Country Link
AU (1) AU680962B2 (en)
CA (1) CA2138503C (en)
GB (1) GB2285127B (en)
RU (1) RU2141109C1 (en)
ZA (1) ZA9410192B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2198990C (en) * 1996-03-04 2007-06-05 Ulf Anders Staffan Tapper Diamond detection
WO1997041422A1 (en) * 1996-04-30 1997-11-06 Radio Programmes Corp. Substance detection device using monoenergetic neutrons
US6693281B2 (en) 2001-05-02 2004-02-17 Massachusetts Institute Of Technology Fast neutron resonance radiography for elemental mapping
ES2276103T3 (en) * 2002-10-11 2007-06-16 Force Technology A SYSTEM AND A METHOD TO CLASSIFY OBJECTS AUTOMATICALLY.
ZA200608025B (en) * 2004-03-12 2008-06-25 Univ Witwatersrand Jhb Detection of diamonds
RU2521723C1 (en) * 2013-03-01 2014-07-10 Общество с ограниченной ответственностью "Нейтронные технологии" Method and apparatus for detecting diamonds in kimberlite
RU2612734C2 (en) * 2015-08-18 2017-03-13 Общество с ограниченной ответственностью "Диамант" Installation for dry enrichment of kimberlite ore by method of labelled neutrons
CN110308169A (en) * 2019-08-09 2019-10-08 山东大学 A kind of TBM slag piece ray back scattering real time scan imaging device and method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT260584B (en) * 1963-12-02 1968-03-11 Veitscher Magnesitwerke Ag Method and device for testing refractory moldings mixed with hydrocarbons
GB8618407D0 (en) * 1986-07-29 1986-09-03 Atomic Energy Authority Uk Flint-in-chalk sorting

Also Published As

Publication number Publication date
GB2285127B (en) 1997-07-23
ZA9410192B (en) 1995-09-08
GB2285127A (en) 1995-06-28
AU680962B2 (en) 1997-08-14
CA2138503A1 (en) 1995-06-23
AU8163494A (en) 1995-06-29
RU2141109C1 (en) 1999-11-10
CA2138503C (en) 2004-10-12
GB9426049D0 (en) 1995-02-22

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MM4A The patent is invalid due to non-payment of fees

Effective date: 20121222