CA2559516A1 - Detection de diamants - Google Patents
Detection de diamants Download PDFInfo
- Publication number
- CA2559516A1 CA2559516A1 CA002559516A CA2559516A CA2559516A1 CA 2559516 A1 CA2559516 A1 CA 2559516A1 CA 002559516 A CA002559516 A CA 002559516A CA 2559516 A CA2559516 A CA 2559516A CA 2559516 A1 CA2559516 A1 CA 2559516A1
- Authority
- CA
- Canada
- Prior art keywords
- particle
- diamond
- particles
- photons
- potentially
- 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
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
- G01N23/22—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 measuring secondary emission from the material
- G01N23/221—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 measuring secondary emission from the material by activation analysis
-
- 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
- B07C5/346—Sorting according to other particular properties according to radioactive properties
Abstract
L'invention concerne un procédé et un appareil de détection de la présence de diamants dans une particule et de tri des particules selon qu'elles contiennent ou non des diamants. Selon ce procédé, la particule est exposée (36) à des photons d'une énergie sélectionnée à laquelle la résonance dipolaire géante (GDR) est excitée pour la réaction nucléaire des photons avec le carbone, et la particule est identifiée comme potentiellement un diamant ou une particule contenant un diamant selon son interaction dans les photons incidents. Dans les modes de réalisation préférés, la particule est identifiée (42) comme potentiellement un diamant ou une particule contenant un diamant selon que l'isotope ?11¿C, ayant une caractéristique demi-vie d'environ vingt minutes, soit produit par la réaction nucléaire photon/carbone, et selon que des photons rayons gamma détectables de manière coïncidente et collinéaire soient émis par la particule à un niveau d'énergie distinctif.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA200402010 | 2004-03-12 | ||
ZA2004/2010 | 2004-03-12 | ||
PCT/IB2005/000643 WO2005088283A1 (fr) | 2004-03-12 | 2005-03-14 | Detection de diamants |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2559516A1 true CA2559516A1 (fr) | 2005-09-22 |
CA2559516C CA2559516C (fr) | 2012-07-10 |
Family
ID=34962210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2559516A Active CA2559516C (fr) | 2004-03-12 | 2005-03-14 | Detection de diamants |
Country Status (7)
Country | Link |
---|---|
CN (1) | CN1942759B (fr) |
AP (1) | AP1986A (fr) |
AU (1) | AU2005220403B2 (fr) |
CA (1) | CA2559516C (fr) |
RU (1) | RU2334974C2 (fr) |
WO (1) | WO2005088283A1 (fr) |
ZA (1) | ZA200608025B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11415722B2 (en) * | 2017-10-19 | 2022-08-16 | University Of Johannesburg | Gamma ray tomographic radiography |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AP2011005890A0 (en) * | 2009-02-23 | 2011-10-31 | Tech Resources Pty Ltd | Detecting a mineral within a material. |
KR101440736B1 (ko) | 2010-06-03 | 2014-09-17 | 엘리멘트 식스 리미티드 | 다이아몬드 공구 |
WO2012016286A1 (fr) * | 2010-08-04 | 2012-02-09 | Technological Resources Pty. Limited | Tri de matériau extrait de mines |
RU2470714C1 (ru) * | 2011-07-21 | 2012-12-27 | Общество с ограниченной ответственностью "Лаборатория рентгенодиагностических систем" | Способ сепарации алмазов |
GB2504052B (en) * | 2012-03-16 | 2017-05-10 | De Beers Uk Ltd | Sorting aggregate material |
RU2517148C1 (ru) * | 2012-12-28 | 2014-05-27 | Евгений Матвеевич Лукьянченко | Способ сепарации частиц полезного материала и устройство для его осуществления |
RU2521723C1 (ru) * | 2013-03-01 | 2014-07-10 | Общество с ограниченной ответственностью "Нейтронные технологии" | Способ и устройство для обнаружения алмазов в кимберлите |
RU2612734C2 (ru) * | 2015-08-18 | 2017-03-13 | Общество с ограниченной ответственностью "Диамант" | Установка для сухого обогащения кимберлитовой руды методом меченых нейтронов |
CN105499156B (zh) * | 2015-12-02 | 2019-03-01 | 虞雅仙 | 一种水钻检查方法 |
RU2670677C9 (ru) * | 2017-02-07 | 2019-09-13 | Акционерная компания "АЛРОСА" (публичное акционерное общество) "АК "АЛРОСА" (ПАО)) | Устройство для сепарации алмазов |
US11921064B2 (en) | 2018-12-11 | 2024-03-05 | University Of Johannesburg | Detector arrangement, detection system and method of processing data from a detector arrangement for high throughput data handling |
WO2020152618A1 (fr) * | 2019-01-23 | 2020-07-30 | University Of Johannesburg | Agencement de détecteur, système de détection et procédé de positionnement d'un agencement de détecteur pour réduire les artefacts d'imagerie |
NL2026338B1 (en) * | 2020-08-25 | 2022-04-29 | Univ Johannesburg | Material analysis method and system |
CN112024451B (zh) * | 2020-08-28 | 2021-08-31 | 北京科技大学 | 一种基于受试者操作特征曲线分析的矿石拣选决策方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0059033A1 (fr) * | 1981-02-24 | 1982-09-01 | Sphere Investments Limited | Triage de minerai |
US4428902A (en) * | 1981-05-13 | 1984-01-31 | Murray Kenneth M | Coal analysis system |
US4756866A (en) * | 1985-10-09 | 1988-07-12 | Alvarez Luis W | Nitrogen detection |
GB2219081B (en) * | 1988-05-06 | 1992-12-02 | Gersan Ets | Identifying specific objects or zones |
GB2219394B (en) * | 1988-05-06 | 1992-09-16 | Gersan Ets | Sensing a narrow frequency band of radiation and examining objects or zones |
US5334652A (en) * | 1991-06-18 | 1994-08-02 | Exxon Chemical Patents, Inc. | Polyester-based coating compositions having high pigment-to-binder ratios |
CA2138503C (fr) * | 1993-12-22 | 2004-10-12 | Ulf Anders Staffan Tapper | Methode et appareil servant a classer des matieres particulaires |
CA2139537C (fr) * | 1994-01-07 | 2007-04-24 | Ulf Anders Staffan Tapper | Methode et appareil servant a classer une substance |
CN1363836A (zh) * | 2001-08-18 | 2002-08-14 | 李晓蔚 | 纯天然制品的判定方法 |
-
2005
- 2005-03-14 ZA ZA200608025A patent/ZA200608025B/xx unknown
- 2005-03-14 RU RU2006135960/28A patent/RU2334974C2/ru active
- 2005-03-14 CN CN2005800116079A patent/CN1942759B/zh not_active Expired - Fee Related
- 2005-03-14 AU AU2005220403A patent/AU2005220403B2/en active Active
- 2005-03-14 CA CA2559516A patent/CA2559516C/fr active Active
- 2005-03-14 WO PCT/IB2005/000643 patent/WO2005088283A1/fr active Application Filing
-
2006
- 2006-09-29 AP AP2006003753A patent/AP1986A/xx active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11415722B2 (en) * | 2017-10-19 | 2022-08-16 | University Of Johannesburg | Gamma ray tomographic radiography |
Also Published As
Publication number | Publication date |
---|---|
RU2334974C2 (ru) | 2008-09-27 |
AU2005220403A1 (en) | 2005-09-22 |
AP2006003753A0 (en) | 2006-10-31 |
CA2559516C (fr) | 2012-07-10 |
CN1942759B (zh) | 2011-01-12 |
RU2006135960A (ru) | 2008-04-20 |
ZA200608025B (en) | 2008-06-25 |
AP1986A (en) | 2009-04-01 |
CN1942759A (zh) | 2007-04-04 |
WO2005088283A1 (fr) | 2005-09-22 |
AU2005220403B2 (en) | 2010-12-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request |