Effects upon the Grazing Interaction of Microfocus Bremsstrahlung with Surfaces of Different Lengths

Rychkov, M. M.; Kaplin, V. V.; Smolyanskiy, V. A.

doi:10.1134/s1027451021020129

Cited by 2 publications

(1 citation statement)

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“…For the Ta target, the fine structure of edge images of plastic and steel plates due to refraction was not observed [8] because of low spatial coherence of hard Bs. Figure 6a shows the fragment of the ×2.44-magnified (𝐿 1 = 47 cm, 𝐿 2 = 114 cm) image of a steel plate with a thickness of 0.4 mm and a width of 18 mm, with one wedge-shaped edge 1.2 mm wide.…”

Section: Resolution and Contrast Of Images Of Thin Wire Pairs And Pla...mentioning

confidence: 99%

New microfocus source based on a betatron for hard X-rays imaging

Rychkov,

Kaplin,

Smolyanskiy

2024

J. Inst.

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The paper reports experimental results demonstrating some properties of microfocus radiation generated in narrow internal silicon (Si) and tantalum (Ta) targets of the B-18 betatron with electron energy of 18 MeV. The targets were 50-μm- and 8-μm-thick Si crystals and a 13-μm-thick Ta foil oriented with a goniometer along the inner electron beam. The results showed strong dependence of the radiation beam shape on the orientation of the target relative to the electron beam, and on the target material. The resolution and contrast dependences of the Duplex IQI standard wire pair images on the position of the pairs in the radiation beam and on the target material are shown. The obtained results revealed the role of absorption and refraction of radiation in generation of magnified images of plastic and metal plate edges. Radiation generated in the Ta target showed high detection sensitivity for narrow gaps and thin inclusions in steel thickness.

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Section: Resolution and Contrast Of Images Of Thin Wire Pairs And Pla...mentioning

confidence: 99%