Imperial College London


Faculty of Natural SciencesDepartment of Physics

Professor of Physics



z.najmudin Website




736Blackett LaboratorySouth Kensington Campus






BibTex format

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 = {},
volume = {9},
year = {2019}

RIS format (EndNote, RefMan)

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 -
UR -
UR -
VL - 9
ER -