Understanding Neutron Radiography Reading VII-NRHB Part 2 of 2

More documents

Recommendations

Info

For the sake of testing the radiographic image quality and accuracy of dimension measurements from neutron radiographs of reactor fuel, the NRWG (Nuclear Regulator Working Group) has decided to produce and test special indicators developed for that purpose. In the preliminary investigation it was determined that there are no suitable indicators prescribed in the existing standards on neutron radiography. The only published standard in that field [ Ref. 1 ], the ASTM E 545-75, was prepared for general neutron radiography and is now under revision. Taking into account the work done on this revision (as e.g. Described in [Ref. 2]) as well as different proposals made -by the NRWG members [ Refs. 3, 4, 5 ], it was decided to produce the following indicators for neutron radiography of nuclear fuel : - Beam Purity Indicator (BPI) - Beam Purity Indicator- Fuel (BPI-F) - Sensitivity Indicator (SI) - Calibration Fuel Pin (CFP-E1) Charlie Chong/ Fion Zhang
Those indicators, fabricated at Rise National Laboratory *, were distributed among all NRWG participants and will be tested under a special NRWG Test Program [Ref. 6]. The design of the above-mentioned indicators is described below. It is worth noting that some work is going on in the NRWG on the development of a common Sensitivity and Measurement Indicator- Fuel (SMI- ) and a Combined Quality Indicator (QIF), as described in [ Ref. 4]. Those indicators are not yet included within the present Test Program [ Ref. 6]. * on behalf of the Petten Establishment of the Joint Research Centre of the Commission of the European Communities. Charlie Chong/ Fion Zhang
Page 1 and 2:
Understanding Neutron Radiography R
Page 3 and 4:
Nuclear Power Reactors applications
Page 5 and 6:
Page 7 and 8:
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 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
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: 3. NRWG INDICATORS FOR TESTING OF B
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 and 120: 3.2 ASSESSMENT OF TEST RESULTS FOR
Page 121 and 122: From those values the neutron expos
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
Page 171 and 172:
Table 5.1 Contd. Site Facility Came
Page 173 and 174:
Table 5.2 Contd. I S1te Facility Co
Page 175 and 176:
Table 5.3 Site Contd. Facility Karl
Page 177 and 178:
145 -y, n SHIELDING a. SHIELDING AS
Page 179 and 180:
0 I 10 I 147 WlJJm • m g Alumini
Page 181 and 182:
149 . . • . . . • • I . J '
Page 183 and 184:
0 • ":> ··,p ,. ... en ... BEAM
Page 185 and 186:
neutron source cassette image recor
Page 187 and 188:
155 PNEUMATIC OPERA TI N BEAM C G S
Page 189 and 190:
DIDO REACTOR SHELL WALL REACTOR SHI
Page 191 and 192:
5 8 020 --r REACTOR RE _liUL CO 12
Page 193 and 194:
161 e CHANNEL WllH FUEL f)·r-: ;.t
Page 195 and 196:
t POOL WATER J I I .. ·l i I FLANG
Page 197 and 198:
165 OBJECT TA BLE TOP-SHIELDING REA
Page 199 and 200:
-- - 1 Removable precollimation 2 I
Page 201 and 202:
169 _-, . II II I I ___ r-----J 1 .
Page 203 and 204:
Nuclear fuel pellets made of proces
Page 205 and 206:
Page 207 and 208:
Page 209 and 210:
Peach - 我爱桃子 Charlie Cho
Page 211 and 212:
Good Luck Charlie Chong/ Fion Zhang
show all

Understanding Neutron Radiography Reading VII-NRHB Part 2 of 2

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?