CA2248145A1 - Jauge d'epaisseur de paroi de tuyau a retrodiffusion compton employant un collimateur a concentration et un detecteur annulaire - Google Patents

Jauge d'epaisseur de paroi de tuyau a retrodiffusion compton employant un collimateur a concentration et un detecteur annulaire Download PDF

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Publication number
CA2248145A1
CA2248145A1 CA002248145A CA2248145A CA2248145A1 CA 2248145 A1 CA2248145 A1 CA 2248145A1 CA 002248145 A CA002248145 A CA 002248145A CA 2248145 A CA2248145 A CA 2248145A CA 2248145 A1 CA2248145 A1 CA 2248145A1
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CA
Canada
Prior art keywords
detector
pipe
photons
source
thickness
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.)
Abandoned
Application number
CA002248145A
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English (en)
Inventor
Saifullah Khan
Xiangjun Xu
Edward S. Kenney
Robert Gould
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.)
Penn State Research Foundation
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2248145A1 publication Critical patent/CA2248145A1/fr
Abandoned legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B15/00—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons
    • G01B15/02—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring thickness
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
    • G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
    • G21K1/025—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using multiple collimators, e.g. Bucky screens; other devices for eliminating undesired or dispersed radiation

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Measurement Of Radiation (AREA)

Abstract

L'invention concerne la mesure de l'épaisseur d'un matériau à l'aide des techniques nucléaires. Plus particulièrement, elle concerne un dispositif et un procédé permettant de mesurer l'épaisseur de la paroi d'un tuyau depuis l'extérieur de celui-ci (70) à l'aide d'un détecteur annulaire (50), d'une collimation par détecteur conique concentrique (26) et d'un rayonnement gamma rétrodiffusé. Une source de rayons gamma (14), de préférence à une énergie de 279 KeV émise par le mercure 203, est collimatée en un faisceau crayon et bombardée perpendiculairement sur l'extérieur de la paroi du tuyau à mesurer. Le rayonnement à rétrodiffusion Compton venant de la paroi est mesuré par un détecteur de photons concentrique qui comporte de préférence un cristal, tel qu'un iodure de sodium, optiquement couplé à un seul tube photomultiplicateur. L'épaisseur du tuyau est déterminée à partir de la réponse du détecteur à l'aide d'une relation prédéterminée obtenue durant l'étalonnage du système. La collimation par détecteur conique concentrique est utilisée pour obtenir des mesures précises quand le tuyau est rempli de liquide.
CA002248145A 1996-03-04 1997-03-03 Jauge d'epaisseur de paroi de tuyau a retrodiffusion compton employant un collimateur a concentration et un detecteur annulaire Abandoned CA2248145A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1275596P 1996-03-04 1996-03-04
US60/012,755 1996-03-04

Publications (1)

Publication Number Publication Date
CA2248145A1 true CA2248145A1 (fr) 1997-09-12

Family

ID=21756530

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002248145A Abandoned CA2248145A1 (fr) 1996-03-04 1997-03-03 Jauge d'epaisseur de paroi de tuyau a retrodiffusion compton employant un collimateur a concentration et un detecteur annulaire

Country Status (4)

Country Link
EP (1) EP0886759A4 (fr)
AU (1) AU2070397A (fr)
CA (1) CA2248145A1 (fr)
WO (1) WO1997033141A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016058095A1 (fr) * 2014-10-14 2016-04-21 Inversa Systems Ltd. Procédé d'inspection de zone dégradée de structure métallique recouverte d'un composite de réparation, et procédé de mesure d'épaisseur de paroi restante d'une structure composite
CN111694046A (zh) * 2020-07-24 2020-09-22 中国工程物理研究院核物理与化学研究所 一种单能γ装置
CN117686533A (zh) * 2023-12-13 2024-03-12 中国特种设备检测研究院 一种检测管壁缺陷、相邻连续缺陷及绘制管壁缺陷图像的方法

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5896429A (en) * 1997-09-15 1999-04-20 Massachusetts Institute Of Technology Method for measurement of blast furnace liner thickness
US8767912B1 (en) 2013-04-09 2014-07-01 King Abdulaziz University System for inspection and imaging of insulated pipes and vessels using backscattered radiation and X-ray fluorescence
US9151722B2 (en) 2014-01-15 2015-10-06 King Abdulaziz University Systems for determining and imaging wax deposition and simultaneous corrosion and wax deposit determination in pipelines
GB2537538B (en) 2014-01-21 2020-07-15 Halliburton Energy Services Inc Downhole logging system with azimuthal and radial sensitivity
JP6299033B2 (ja) * 2014-05-12 2018-03-28 一般財団法人電力中央研究所 非破壊検査方法およびその装置
US8976936B1 (en) 2014-05-22 2015-03-10 King Abdulaziz University Collimator for backscattered radiation imaging and method of using the same
CN103969270A (zh) * 2014-05-27 2014-08-06 东莞理工学院 基于背散射成像技术的发射装置
US20160274039A1 (en) 2014-09-25 2016-09-22 King Abdulaziz University System for determining and imaging wax deposition and corrosion in pipelines
BR112017004278B1 (pt) 2014-10-02 2022-03-29 Halliburton Energy Services, Inc Aparelho para geração de imagem de fótons e método para gerar imagens de fótons do fundo do poço
US9020099B1 (en) 2014-12-03 2015-04-28 King Abdulaziz University Miniaturized pipe inspection system for measuring corrosion and scale in small pipes
WO2017062011A1 (fr) * 2015-10-08 2017-04-13 Halliburton Energy Services, Inc. Détermination de l'épaisseur de la paroi d'un tubage
FR3043247B1 (fr) 2015-10-30 2020-06-19 Commissariat A L'energie Atomique Et Aux Energies Alternatives Collimateur pour la spectrometrie de diffraction x, dispositif associe et son utilisation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4825454A (en) * 1987-12-28 1989-04-25 American Science And Engineering, Inc. Tomographic imaging with concentric conical collimator
GB9105639D0 (en) * 1991-03-18 1991-05-01 Data Measurement Corp Dynamic alloy correction gauge
US5195117A (en) * 1992-04-24 1993-03-16 University Of Houston Method for using secondary radiation scattering to evaluate the thickness of materials

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016058095A1 (fr) * 2014-10-14 2016-04-21 Inversa Systems Ltd. Procédé d'inspection de zone dégradée de structure métallique recouverte d'un composite de réparation, et procédé de mesure d'épaisseur de paroi restante d'une structure composite
US10408615B2 (en) 2014-10-14 2019-09-10 Inversa Systems Ltd. Method of inspecting a degraded area of a metal structure covered by a composite repair and method of measuring a remaining wall thickness of a composite structure
CN111694046A (zh) * 2020-07-24 2020-09-22 中国工程物理研究院核物理与化学研究所 一种单能γ装置
CN111694046B (zh) * 2020-07-24 2022-06-07 中国工程物理研究院核物理与化学研究所 一种单能γ装置
CN117686533A (zh) * 2023-12-13 2024-03-12 中国特种设备检测研究院 一种检测管壁缺陷、相邻连续缺陷及绘制管壁缺陷图像的方法
CN117686533B (zh) * 2023-12-13 2024-05-17 中国特种设备检测研究院 一种检测管壁缺陷、相邻连续缺陷及绘制管壁缺陷图像的方法

Also Published As

Publication number Publication date
AU2070397A (en) 1997-09-22
EP0886759A1 (fr) 1998-12-30
EP0886759A4 (fr) 2000-11-22
WO1997033141A1 (fr) 1997-09-12

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