Understanding Neutron Radiography Reading VII-NRHB Part 2 of 2

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d) This document describes methods of measuring radiographic quality and refers to reference radiographs for nuclear fuel, but it does not cover the interpretation or acceptance standards to be applied as this is considered to be a subject that should be covered by the Order Specification and therefore a matter of contractual agreement between the supplier and the purchaser. e) The numerical data quoted herein has been taken from Part 1 of the Handbook, which gives the relevants source references. f) Sections 2.7, 2.8, 2.9, 2.11 and 2.12 of this Recommended Practices have been taken verbatim 一字不差的 from ASTM E94-77 'Standard Recommended Practice for Radiographic Testing' and the compilers of this Handbook make grateful acknowledgement to the American Society for Testing Materials for their permission to do this. Charlie Chong/ Fion Zhang
2.1 APPLICABLE DOCUMENTS a) Neutron Radiography Handbook Part 1 , Principles and Practice of Neutron Radiography. b) Neutron Radiography Handbook Part 3, Beam and Image Quality Indicators for Neutron Radiography. c) Neutron Radiography Handbook Part 4, Reference Radiographs of Defects in Nuclear Fuel. d) Neutron Radiography Handbook Part 5, List of Neutron Radiography Facilities in the European Community. Charlie Chong/ Fion Zhang
Page 1 and 2: Understanding Neutron Radiography R
Page 3 and 4: Nuclear Power Reactors applications
Page 9 and 10: The Magical Book of Neutron Radiogr
Page 11 and 12: ASNT Certification Guide NDT Level
Page 13 and 14: 4. Interpretation/Evaluation • Im
Page 15 and 16: Fion Zhang at Shanghai 21th July 20
Page 17 and 18: Charlie Chong/ Fion Zhang http://gr
Page 19 and 20: Quantum Mechanics Part 3 of 4 - The
Page 21 and 22: Neutron Radiography ■ https://www
Page 23: 2. RECOMMENDED PRACTICE FOR THE NEU
Page 27 and 28: 2.3 EQUIPMENT 2.3.1 General 2.3.1.1
Page 29 and 30: Charlie Chong/ Fion Zhang
Page 31 and 32: 2.3.3.2 For the neutron radiography
Page 33 and 34: Discussion Subject 1: 2.3.3.2 For t
Page 35 and 36: 2.4 RADIOGRAPHIC TECHNIQUES 2.4.1 G
Page 37 and 38: 2.4.2.3 When using overlapping radi
Page 39 and 40: Table 1.4 The Characteristics of So
Page 41 and 42: Image Converters ■ ■ ■ Indire
Page 43 and 44: 2.4.4 Image Recorders 2.4.4.1 As th
Page 45 and 46: 2.4.5 Cassettes 2.4.5.1 The cassett
Page 47 and 48: 2.4.7 Geometry 2.4.7.1 The manner i
Page 49 and 50: 2.4.8 Density of the Radiograph 2.4
Page 51 and 52: 2.4.10 Image Quality Indicators (IQ
Page 53 and 54: 2.4.11.2 This should record the fol
Page 55 and 56: 2.4.12.3 When track etch materials
Page 57 and 58: 2.5 MEASUREMENT 2.5.1 Definition an
Page 59 and 60: Fuel Pins Charlie Chong/ Fion Zhang
Page 61 and 62: 2.5.3 The Neutron Radiographic Tech
Page 63 and 64: 2.5.5 Making the Measurements 2.5.5
Page 65 and 66: Table 1.4 The Characteristics of So
Page 67 and 68: 2.5.5.7 Image recorders to be used
Page 69 and 70: 2.5.5.10 Cassettes of the vacuum ty
Page 71 and 72: 2.5.6 Image Enhancement 2.5.6.1 Ele
Page 73 and 74: 2.7 FILM HANDLING 2.7.1 Storage of
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2.8 FILM PROCESSING 2.8.1 General T
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2.8.3.4 Development Normal developm
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2.8.3.8 Fixer Neutralising (?) The
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2.8.3.14 Drying Drying is a functio
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Manual Processing ■ https://www.y
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2.10 REFERENCE RADIOGRAPHS Part 4 o
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2.12 RECORDS AND REPORTS 2.12.1 Rec
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3. NRWG INDICATORS FOR TESTING OF B
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Those indicators, fabricated at Ris
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Fig. 3.1 The ASTM Beam Purity Indic
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Picture and drawing of Beam Purity
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Charlie Chong/ Fion Zhang Standard
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DL Film densities measured through
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BPI Radiograph Charlie Chong/ Fion
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The body of the BPI is made of a 8
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The body of the BPI-F consists of a
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Charlie Chong/ Fion Zhang
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3.1.3 Sensitivity Indicator (SI) In
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The calibration fuel pin CFP-E1 (Fi
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Charlie Chong/ Fion Zhang Fig. 3.3
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Charlie Chong/ Fion Zhang BPI & AST
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Correct placement of Indicators in
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3.2 ASSESSMENT OF TEST RESULTS FOR
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From those values the neutron expos
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From those values the neutron expos
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BPI Radiograph Charlie Chong/ Fion
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Pair Production Charlie Chong/ Fion
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Pair Production Charlie Chong/ Fion
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From those values, exposure contrib
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3.2.4 Assessment for the Calibratio
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Radial dimensions • Pellet diamet
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4. ATLAS (COMPACT VERSION) OF DEFEC
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It contains a collection of typical
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Those components are marked with ca
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Fig. 4.1 Components of a typical nu
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4.2.3 Defect Location On Fig. 4.2 t
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4.2.4 Defect Nature and Origin Defe
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4.2.8 Measuring of Dimensions Besid
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4.3.2 The Use of the Collection in
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Insert Page 137~149 Charlie Chong/
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124 A.a.5 Corner chips A.a.6 Other
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126 A.b Defects in pellet-to-pellet
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128 A.d Central void Central void c
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130 B.a Hydrides in cladding Hydrid
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132 C.b Defects of spring sleeve Fi
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134 D. Defects in end plugs Fig. 4.
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Defects not shown in the present Co
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Table 5.1 Neutron Radiography Insta
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Table 5.1 Contd. Site Facility Came
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Table 5.2 Contd. I S1te Facility Co
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Table 5.3 Site Contd. Facility Karl
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145 -y, n SHIELDING a. SHIELDING AS
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0 I 10 I 147 WlJJm • m g Alumini
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149 . . • . . . • • I . J '
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0 • ":> ··,p ,. ... en ... BEAM
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neutron source cassette image recor
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155 PNEUMATIC OPERA TI N BEAM C G S
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DIDO REACTOR SHELL WALL REACTOR SHI
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5 8 020 --r REACTOR RE _liUL CO 12
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161 e CHANNEL WllH FUEL f)·r-: ;.t
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t POOL WATER J I I .. ·l i I FLANG
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165 OBJECT TA BLE TOP-SHIELDING REA
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-- - 1 Removable precollimation 2 I
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169 _-, . II II I I ___ r-----J 1 .
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Nuclear fuel pellets made of proces
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Peach - 我爱桃子 Charlie Cho
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Good Luck Charlie Chong/ Fion Zhang
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Understanding Neutron Radiography Reading VII-NRHB Part 2 of 2

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