Abstract
X-rays generated by betatron oscillations of electrons in a laser-driven plasma accelerator were characterised and applied to imaging industrial samples. With a 125TW laser, a low divergence beam with 5.2±1.7 × 107photonsmrad−2 per pulse was produced with a synchrotron spectrum with a critical energy of 14.6±1.3keV. Radiographs were obtained of a metrology test sample, battery electrodes, and a damage site in a composite material. These results demonstrate the suitability of the source for non-destructive evaluation applications. The potential for industrial implementation of plasma accelerators is discussed.
Original language | English |
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Article number | 164369 |
Number of pages | 7 |
Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
Volume | 983 |
Early online date | 16 Jul 2020 |
DOIs | |
Publication status | Published - 11 Dec 2020 |
Keywords
- Betatron radiation
- Femto-second X-ray imaging
- LPWA
- Novel industrial X-ray imaging
- Radiographs