Understanding Neutron Radiography Reading VII-NRHB Part 2 of 2

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2.4.11 Exposure Chart/Technique Log 2.4.11.1 It is recommended that operators of neutron radiographic facilities construct an exposure chart/technique log for the neutron radiography of nuclear fuel. Charlie Chong/ Fion Zhang
2.4.11.2 This should record the following: a. diameter of beam inlet aperture, b. inlet aperture object distance (L/D ratio), c. characteristic neutron energy (Cd ratio), d. beam quality data as measured by a beam quality indicator (BQI?), e. description or sketch of the object set-up, f. material(s) of the object, g. geometry and thickness of the material(s), h. material of the converter foil, i. type of film, j. film density on the image of the quality indicator, k. identification number of radiograph, l. exposure time, m. details of any filter used, n. type of developer used, o. processing time and temperature, p. type of image quality indicator, q. sensitivity value measured by the image quality indicator. 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 and 24: 2. RECOMMENDED PRACTICE FOR THE NEU
Page 25 and 26: 2.1 APPLICABLE DOCUMENTS a) Neutron
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: 2.4.10 Image Quality Indicators (IQ
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
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
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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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