Imperial College London
Alternate

ProfessorZulfikarNajmudin

Faculty of Natural Sciences, Department of Physics

Professor of Physics
 
 
 
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Contact

 

z.najmudin Website

 
 
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Location

 

736Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Hussein:2019:10.1038/s41598-019-39845-4,
author = {Hussein, AE and Senabulya, N and Ma, Y and Streeter, MJV and Kettle, B and Dann, SJD and Albert, F and Bourgeois, N and Cipiccia, S and Cole, JM and Finlay, O and Gerstmayr, E and Gonzalez, IG and Higginbotham, A and Jaroszynski, DA and Falk, K and Krushelnick, K and Lemos, N and Lopes, NC and Lumsdon, C and Lundh, O and Mangles, SPD and Najmudin, Z and Rajeev, PP and Schleputz, CM and Shahzad, M and Smid, M and Spesyvtsev, R and Symes, DR and Vieux, G and Willingale, L and Wood, JC and Shahani, AJ and Thomas, AGR},
doi = {10.1038/s41598-019-39845-4},
journal = {Scientific Reports},
pages = {1--13},
title = {Laser-wakefield accelerators for high-resolution X-ray imaging of complex microstructures},
url = {http://dx.doi.org/10.1038/s41598-019-39845-4},
volume = {9},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Laser-wakefield accelerators (LWFAs) are high acceleration-gradient plasma-based particle accelerators capable of producing ultra-relativistic electron beams. Within the strong focusing fields of the wakefield, accelerated electrons undergo betatron oscillations, emitting a bright pulse of X-rays with a micrometer-scale source size that may be used for imaging applications. Non-destructive X-ray phase contrast imaging and tomography of heterogeneous materials can provide insight into their processing, structure, and performance. To demonstrate the imaging capability of X-rays from an LWFA we have examined an irregular eutectic in the aluminum-silicon (Al-Si) system. The lamellar spacing of the Al-Si eutectic microstructure is on the order of a few micrometers, thus requiring high spatial resolution. We present comparisons between the sharpness and spatial resolution in phase contrast images of this eutectic alloy obtained via X-ray phase contrast imaging at the Swiss Light Source (SLS) synchrotron and X-ray projection microscopy via an LWFA source. An upper bound on the resolving power of 2.7 ± 0.3 μm of the LWFA source in this experiment was measured. These results indicate that betatron X-rays from laser wakefield acceleration can provide an alternative to conventional synchrotron sources for high resolution imaging of eutectics and, more broadly, complex microstructures.
AU  - Hussein,AE
AU  - Senabulya,N
AU  - Ma,Y
AU  - Streeter,MJV
AU  - Kettle,B
AU  - Dann,SJD
AU  - Albert,F
AU  - Bourgeois,N
AU  - Cipiccia,S
AU  - Cole,JM
AU  - Finlay,O
AU  - Gerstmayr,E
AU  - Gonzalez,IG
AU  - Higginbotham,A
AU  - Jaroszynski,DA
AU  - Falk,K
AU  - Krushelnick,K
AU  - Lemos,N
AU  - Lopes,NC
AU  - Lumsdon,C
AU  - Lundh,O
AU  - Mangles,SPD
AU  - Najmudin,Z
AU  - Rajeev,PP
AU  - Schleputz,CM
AU  - Shahzad,M
AU  - Smid,M
AU  - Spesyvtsev,R
AU  - Symes,DR
AU  - Vieux,G
AU  - Willingale,L
AU  - Wood,JC
AU  - Shahani,AJ
AU  - Thomas,AGR
DO  - 10.1038/s41598-019-39845-4
EP  - 13
PY  - 2019///
SN  - 2045-2322
SP  - 1
TI  - Laser-wakefield accelerators for high-resolution X-ray imaging of complex microstructures
T2  - Scientific Reports
UR  - http://dx.doi.org/10.1038/s41598-019-39845-4
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000459983900055&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/71353
VL  - 9
ER  -
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