Measurement method for areal density of pulsed X-ray photographic images in metal ejection diagnosis

Jing Yuefeng; Kang Xu; Wang Weirong

doi:10.11884/HPLPB202537.250025

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Jing Yuefeng, Kang Xu, Wang Weirong. Measurement method for areal density of pulsed X-ray photographic images in metal ejection diagnosis[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202537.250025

Citation:

Jing Yuefeng, Kang Xu, Wang Weirong. Measurement method for areal density of pulsed X-ray photographic images in metal ejection diagnosis[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202537.250025

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Measurement method for areal density of pulsed X-ray photographic images in metal ejection diagnosis

doi: 10.11884/HPLPB202537.250025

Institute of Fluid Physics, CAEP, P. O. Box 919-105, Mianyang 621900, China

Received Date: 2025-02-15
Accepted Date: 2025-04-24
Rev Recd Date: 2025-05-16

Available Online: 2025-06-05

Abstract

Abstract

The ejection phenomenon generated by metal materials under strong impact is an important issue in the field of impact compression research. Pulse X-ray photography is an important diagnostic testing method for micro jet processes. The use of X-ray images to obtain the surface density of metal material experimental objects and jets under strong impact is an important objective of this type of experiment. A method for measuring the areal density data of ejection X-ray images based on stepped wedges is proposed. The method reduces the influence of white spot noise by median filtering, corrects the unevenness of light field distribution and detector response by using empty field images, obtains the system point spread function by imaging the Roll-Bar object, and uses the imaging system point spread function and an improved Tikhonov regularization based image restoration method to reduce the impact of blur on X-ray images. The processing flow for obtaining the areal density information of ejection X-ray images is provided. The verification of the inversion of areal density in static object experimental images shows that the proposed areal density measurement method can accurately obtain the areal density information of metal ejection experimental X-ray images.
- ejection,
- areal density diagnosis,
- pulsed X-ray radiography,
- Roll-Bar method,
- image restoration

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References(20)

References

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