Monochromatic X-Ray Beams for NDT

Jensen, T.; Gray, Joseph N.

doi:10.1007/978-1-4615-3344-3_42

Cited by 2 publications

(1 citation statement)

References 4 publications

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“…This technique most commonly has been used for pipe inspection (Zscherpel et al, 2006). X-ray generators producing the beam (Hanke et al, 2008), display devices and collimators to direct radiation beam to the place of inspection (Jensen and Gray, 1992) are the devices that are occupied during the inspection process. • Visual Inspection Visual inspection is a common and widely used corrosion inspection method in many applications.…”

Section: Corrosion Detection Techniques and Sensorsmentioning

confidence: 99%

Review of corrosion monitoring and prognostics in offshore wind turbine structures: Current status and feasible approaches

Brijder

Hagen²,

Cortés³

et al. 2022

Front. Energy Res.

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As large wind farms are now often operating far from the shore, remote condition monitoring and condition prognostics become necessary to avoid excessive operation and maintenance costs while ensuring reliable operation. Corrosion, and in particular uniform corrosion, is a leading cause of failure for Offshore Wind Turbine (OWT) structures due to the harsh and highly corrosive environmental conditions in which they operate. This paper reviews the state-of-the-art in corrosion mechanism and models, corrosion monitoring and corrosion prognostics with a view on the applicability to OWT structures. Moreover, we discuss research challenges and open issues as well strategic directions for future research and development of cost-effective solutions for corrosion monitoring and prognostics for OWT structures. In particular, we point out the suitability of non-destructive autonomous corrosion monitoring systems based on ultrasound measurements, combined with hybrid prognosis methods based on Bayesian Filtering and corrosion empirical models.

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Section: Corrosion Detection Techniques and Sensorsmentioning

confidence: 99%

Review of corrosion monitoring and prognostics in offshore wind turbine structures: Current status and feasible approaches

Brijder

Hagen²,

Cortés³

et al. 2022

Front. Energy Res.

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The New Paradox of Dual Modality X-Ray Diamond Sorting

et al. 2021

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Modern-day diamond sorting is achieved through the application of X-ray luminescence (XRL) and X-ray transmission (XRT) techniques. Sorting with XRL is limited to the class range of 1.25 mm to 32 mm because of self-absorption associated with larger diamonds, greater than 32mm. The effect of self-absorption is also a high-energy phenomenon in XRL. XRT is limited to sorting large size diamonds as the technique suffers poor contrast for diamonds smaller than 10mm. XRT measurements are immune to self-absorption for all sample sizes, while XRL measurements have good contrast for particles smaller than 32mm. The applications of these techniques have hitherto been used independently of each other and have subsequently progressed mutually exclusively. Here we analytically show a new paradox of a dual-modality X-ray diamond sorting combining XRL and XRT techniques' strengths. Key features of our new paradoxical model performance are contrast mitigation for small particles and self-absorption rejection for a large particle at high energy as well as improved particle detectability and classification.

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Monochromatic X-Ray Beams for NDT

Cited by 2 publications

References 4 publications

Review of corrosion monitoring and prognostics in offshore wind turbine structures: Current status and feasible approaches

Review of corrosion monitoring and prognostics in offshore wind turbine structures: Current status and feasible approaches

The New Paradox of Dual Modality X-Ray Diamond Sorting

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