Understanding NRT- Reading 1- 2 of 2- Radiogaphic Testing A

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Charlie Chong/ Fion Zhang SME- Subject Matter Expert 我们的大学 , 其实应该聘请这些能干的退休教授 . 或许在职的砖头怕被排斥 . http://cn.bing.com/videos/search?q=Walter+Lewin&FORM=HDRSC3 https://www.youtube.com/channel/UCiEHVhv0SBMpP75JbzJShqw
BOK NR- Neutron Radiographic Testing Length: 4 hours Questions: 135 1. Principles/ Theory • Nature of penetrating radiation • Interaction between penetrating radiation and matter • Neutron radiography imaging • Radiometry 2. Equipment/Materials • Sources of neutrons • Radiation detectors • Nonimaging devices Charlie Chong/ Fion Zhang
Page 1 and 2: Understandings NRT - Reading 1 Part
Page 3 and 4: NDT for Upstream Charlie Chong/ Fio
Page 5 and 6: NDT for Upstream Charlie Chong/ Fio
Page 7: Charlie Chong/ Fion Zhang Fion Zhan
Page 11 and 12: 4. Interpretation/Evaluation • Im
Page 13 and 14: Charlie Chong/ Fion Zhang http://gr
Page 15 and 16: Charlie Chong/ Fion Zhang
Page 19 and 20: Chapter 6: Radio Isotope (Gamma) So
Page 21 and 22: Cobalt-60 Charlie Chong/ Fion Zhang
Page 23 and 24: Cobalt-60, 60 Co, is a synthetic ra
Page 25 and 26: Decay of Co-60 The decay scheme of
Page 27 and 28: γ-Ray Spectrum of Cobalt-60 Charli
Page 29 and 30: Isomers Nuclei can have the same ne
Page 31 and 32: Half-lives (example: Gd) Charlie Ch
Page 33 and 34: Advantages of gamma ray sources inc
Page 35 and 36: Radio Isotope - Th232 Half life: 1.
Page 37 and 38: Radio Isotope - Co60 Half life: 192
Page 39 and 40: 12.7μm sensitive silver halide blu
Page 45 and 46: Arithmetic of Exposure RELATIONS OF
Page 47 and 48: Milliamperage-Distance Relation The
Page 49 and 50: When very low kilovoltages, say 20
Page 51 and 52: Tabular Solution of Milliamperage-T
Page 53 and 54: Milliamperage-Time and Distance Rel
Page 55 and 56: THE RECIPROCITY LAW In the sections
Page 57 and 58: Approximate Corrections for Recipro
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Film Packaging Radiographic film ca
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Film Handling X-ray film should alw
Page 63 and 64:
Subject contrast is determined by t
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Definition Radiographic definition
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Film should be located in a light,
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Sensitometric checks may be carried
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Film viewers should be clean and in
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When viewing a particular region of
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Radiographic Contrast Charlie Chong
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In the example on the right, the sa
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Chapter 12: Radiographic Density Fi
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Chapter 13: Controlling Radiographi
Page 83 and 84:
Hole-Type IQIs ASTM Standard E1025
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Wire Penetrameters ASTM Standard E7
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Chapter 14: Exposure Calculations P
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General Welding Discontinuities The
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Cluster porosity is caused when flu
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Incomplete penetration (IP) or lack
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Internal concavity or suck back is
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External or crown undercut is an er
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Inadequate weld reinforcement is an
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Cracks can be detected in a radiogr
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Oxide inclusions are usually visibl
Page 105 and 106:
Chapter 16: Radiograph Interpretati
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Charlie Chong/ Fion Zhang
Page 109 and 110:
Shrinkage is a form of discontinuit
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Dendritic shrinkage is a distributi
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Cracks are thin (straight or jagged
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Core shift shows itself as a variat
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Mottling is a radiographic indicati
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Incomplete penetration, as the name
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Root edge condition shows the penet
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Real-time radiography is a well-est
Page 125 and 126:
Charlie Chong/ Fion Zhang
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Read More: https://www.nde-ed.org/T
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Good Luck! Charlie Chong/ Fion Zhan
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Understanding NRT- Reading 1- 2 of 2- Radiogaphic Testing A

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