| 000 | 00000nam 2200000zi 4500 |
| 001 | 9.953754 |
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| 003 | CaOODSP |
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| 005 | 20250915155336 |
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| 006 | m o d f |
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| 007 | cr |n||||||||| |
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| 008 | 250731e199402 bccad obt f000 0 eng d |
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| 040 | |aCaOODSP|beng|erda|cCaOODSP |
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| 041 | 1 |aeng|beng|bfre |
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| 043 | |an-cn--- |
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| 086 | 1 |aDR52-11/14-1994E-PDF |
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| 100 | 1 |aLeblanc, J. D., |eauthor. |
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| 245 | 10|aDual energy radiography : |ba potential corrosion detection technique / |cby J.D. Leblanc and R.D. Finlayson. |
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| 264 | 1|aVictoria, B.C. : |bDefence Research Establishment Pacific = Centre de recherches pour la défense pacifique : |bResearch and Development Branch, Department of National Defence, |cFebrurary 1994. |
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| 300 | |a1 online resource (iv, 35 pages, 3 unnumbered pages) : |billustrations, charts. |
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| 336 | |atext|btxt|2rdacontent |
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| 337 | |acomputer|bc|2rdamedia |
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| 338 | |aonline resource|bcr|2rdacarrier |
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| 490 | 1 |aTechnical memorandum ; |v94-05 |
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| 500 | |aDigitized edition from print [produced by Defence Research and Development Canada]. |
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| 500 | |a"Unclassified." |
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| 504 | |aIncludes bibliographical references (pages 24-25). |
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| 520 | 3 |a"The recent demand for extending the service life of aircraft fleets well beyond the original design life has made the early detection of corrosion in aircraft a major concern. Consequently, many nondestructive techniques to improve corrosion detection are being investigated. One potential method is known as "Dual-Energy" (DE) radiography and is based on the analysis of two digital radiographs taken at different effective energies. [...]. The information collected from the two digital radiographs can then be combined to form a single digital image that can be used to determine an unknown substance or to remove the effect of a particular substance to improve radiographic contrast. In this report the theory and concepts of DE are examined and a number of existing systems are discussed. Finally, the possibility of implementing a DE system at the Defence Research Establishment Pacific is investigated"--Abstract (page iii). |
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| 546 | |aIncludes abstracts in English and French. |
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| 650 | 0|aRadiography, Industrial|zCanada|xEquipment and supplies. |
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| 650 | 0|aCorrosion and anti-corrosives|zCanada. |
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| 650 | 6|aRadiographie industrielle|zCanada|xAppareils et matériel. |
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| 650 | 6|aCorrosion|zCanada. |
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| 710 | 2 |aDefence Research Establishment Pacific, |eissuing body. |
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| 710 | 1 |aCanada. |bDepartment of National Defence. |bResearch and Development Branch, |eissuing body. |
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| 830 | #0|aTechnical memorandum (Defence Research Establishment Pacific)|v94-05.|w(CaOODSP)9.936067 |
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| 856 | 40|qPDF|s1.38 MB|uhttps://publications.gc.ca/collections/collection_2025/rddc-drdc/DR52-11-14-1994-eng.pdf |
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