Monte Carlo Study of an Electron-Based Neutron Source for Bragg Edge Imaging

Bakhtiari, Mahdi; Jung, Nam-Suk; Um, Wooyong; Lee, Hee-Seock

doi:10.1080/00295639.2022.2162791

Cited by 1 publication

(2 citation statements)

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“…Moreover, the potential of a small-scale accelerator neutron source in performing Bragg edge imaging is shown. The results in this work along with our previous work (Bakhtiari et al, 2023), in which a conceptual target was designed, could be steps towards developing the Bragg edge imaging technique in Korea using an electron-based neutron source (Lee et al, 2021).…”

Section: Introductionmentioning

confidence: 80%

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Microstructure and texture analysis of 304 austenitic stainless steel using Bragg edge transmission imaging

Bakhtiari,

Sadeghi,

Sato

et al. 2023

J Appl Cryst

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Bragg edge imaging using pulsed neutrons is a non-destructive technique for studying microstructure and texture of materials. It provides two-dimensional visualization of crystallographic information using a pixelated gas electron multiplier detector and a time-of-flight method. In this work, the properties of type 304 austenitic stainless steel samples were studied via Bragg edge imaging. The samples included hot-rolled, cold-rolled and heat-treated specimens, which were characterized to investigate texture, phase fraction and grain growth. The results showed that the crystallite size increased with increasing annealing temperature. The cold-rolled and annealed samples exhibited strong textures, while the hot-rolled sample showed no preferred orientation. The phase volume fraction of induced martensite in the cold-rolled sample was also obtained. Two-dimensional maps of microstructures and textures were obtained without destructive processes. The results were validated by electron backscatter diffraction and found to be consistent. This work provides valuable information for non-destructive characterization of bulk materials by performing Bragg edge imaging using the Hokkaido University compact accelerator neutron source.

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Section: Introductionmentioning

confidence: 80%

“…In previous work (Bakhtiari et al, 2023), we presented a conceptual design of a neutron source for Bragg edge imaging based on an electron linac as a CANS. Our planned facility is similar to the Hokkaido University Neutron Source (HUNS) in Japan (Furusaka et al, 2014;Sato et al, 2018).…”

Section: Introductionmentioning

confidence: 99%