Understanding Neutron Radiography Reading VII-NRHB Part 2 of 2

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TABLE 1 Definitions of D Parameters DB Film densities measured through the images of the boron nitride disks. DL Film densities measured through the images of the lead disks. DH Film density measured at the center of the hole in the BPI. DT Film density measured through the image of the polytetrafluoroethylene. DDL Difference between the DL values. DDB Difference between the two DB values. Charlie Chong/ Fion Zhang
From those values the neutron exposure contributions can be calculated as follows : Charlie Chong/ Fion Zhang
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Understanding Neutron Radiography R
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Nuclear Power Reactors applications
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The Magical Book of Neutron Radiogr
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ASNT Certification Guide NDT Level
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4. Interpretation/Evaluation • Im
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Fion Zhang at Shanghai 21th July 20
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Charlie Chong/ Fion Zhang http://gr
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Quantum Mechanics Part 3 of 4 - The
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Neutron Radiography ■ https://www
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2. RECOMMENDED PRACTICE FOR THE NEU
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2.1 APPLICABLE DOCUMENTS a) Neutron
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2.3 EQUIPMENT 2.3.1 General 2.3.1.1
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Charlie Chong/ Fion Zhang
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2.3.3.2 For the neutron radiography
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Discussion Subject 1: 2.3.3.2 For t
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2.4 RADIOGRAPHIC TECHNIQUES 2.4.1 G
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2.4.2.3 When using overlapping radi
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Table 1.4 The Characteristics of So
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Image Converters ■ ■ ■ Indire
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2.4.4 Image Recorders 2.4.4.1 As th
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2.4.5 Cassettes 2.4.5.1 The cassett
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2.4.7 Geometry 2.4.7.1 The manner i
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2.4.8 Density of the Radiograph 2.4
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2.4.10 Image Quality Indicators (IQ
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2.4.11.2 This should record the fol
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2.4.12.3 When track etch materials
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2.5 MEASUREMENT 2.5.1 Definition an
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Fuel Pins Charlie Chong/ Fion Zhang
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2.5.3 The Neutron Radiographic Tech
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2.5.5 Making the Measurements 2.5.5
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Table 1.4 The Characteristics of So
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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
Page 75 and 76: 2.8 FILM PROCESSING 2.8.1 General T
Page 77 and 78: 2.8.3.4 Development Normal developm
Page 79 and 80: 2.8.3.8 Fixer Neutralising (?) The
Page 81 and 82: 2.8.3.14 Drying Drying is a functio
Page 83 and 84: Manual Processing ■ https://www.y
Page 85 and 86: 2.10 REFERENCE RADIOGRAPHS Part 4 o
Page 87 and 88: 2.12 RECORDS AND REPORTS 2.12.1 Rec
Page 89 and 90: 3. NRWG INDICATORS FOR TESTING OF B
Page 91 and 92: Those indicators, fabricated at Ris
Page 93 and 94: Fig. 3.1 The ASTM Beam Purity Indic
Page 95 and 96: Picture and drawing of Beam Purity
Page 97 and 98: Charlie Chong/ Fion Zhang Standard
Page 99 and 100: DL Film densities measured through
Page 101 and 102: BPI Radiograph Charlie Chong/ Fion
Page 103 and 104: The body of the BPI is made of a 8
Page 105 and 106: The body of the BPI-F consists of a
Page 107 and 108: Charlie Chong/ Fion Zhang
Page 109 and 110: 3.1.3 Sensitivity Indicator (SI) In
Page 111 and 112: The calibration fuel pin CFP-E1 (Fi
Page 113 and 114: Charlie Chong/ Fion Zhang Fig. 3.3
Page 115 and 116: Charlie Chong/ Fion Zhang BPI & AST
Page 117 and 118: Correct placement of Indicators in
Page 119: 3.2 ASSESSMENT OF TEST RESULTS FOR
Page 123 and 124: From those values the neutron expos
Page 125 and 126: BPI Radiograph Charlie Chong/ Fion
Page 127 and 128: Pair Production Charlie Chong/ Fion
Page 129 and 130: Pair Production Charlie Chong/ Fion
Page 131 and 132: From those values, exposure contrib
Page 133 and 134: 3.2.4 Assessment for the Calibratio
Page 135 and 136: Radial dimensions • Pellet diamet
Page 137 and 138: 4. ATLAS (COMPACT VERSION) OF DEFEC
Page 139 and 140: It contains a collection of typical
Page 141 and 142: Those components are marked with ca
Page 143 and 144: Fig. 4.1 Components of a typical nu
Page 145 and 146: 4.2.3 Defect Location On Fig. 4.2 t
Page 147 and 148: 4.2.4 Defect Nature and Origin Defe
Page 149 and 150: 4.2.8 Measuring of Dimensions Besid
Page 151 and 152: 4.3.2 The Use of the Collection in
Page 153 and 154: Insert Page 137~149 Charlie Chong/
Page 155 and 156: 124 A.a.5 Corner chips A.a.6 Other
Page 157 and 158: 126 A.b Defects in pellet-to-pellet
Page 159 and 160: 128 A.d Central void Central void c
Page 161 and 162: 130 B.a Hydrides in cladding Hydrid
Page 163 and 164: 132 C.b Defects of spring sleeve Fi
Page 165 and 166: 134 D. Defects in end plugs Fig. 4.
Page 167 and 168: Defects not shown in the present Co
Page 169 and 170: 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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