Pin-hole array production and detailed data analysis for advanced single-shot X-ray imaging of laboratory plasmas

T. Levato*, L. Labate, N. C. Pathak, C. Cecchetti, P. Koester, Enzo Di Fabrizio, P. Delogu, A. Giulietti, D. Giulietti, L. A. Gizzi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Laser produced plasmas offer the unique opportunity to investigate physical mechanisms working at extremely high field in pulsed regime [1] (Gizzi et al., 2009). Future large scale infrastructure like HiPER and ELI may open new frontiers of knowledge in this way. Technologies needed for improving diagnostic in this field have a strong impact on a wide range of multi-disciplinary applications as for compact plasma-based accelerators [1,2] (Gizzi et al., 2009; Betti et al., 2009) laser fusion oriented experiments, three-dimensional microscopy and lithography. As an example the X-ray imaging, being a powerful diagnostic tool for deep investigation on different variety of laser produced plasma, has obtained a grooving effort in recent years. Large scale facilities working in single-pulse regime for laser fusion oriented experiments have evidenced the necessity to obtain spectrally resolved X-ray images of produced plasmas in a single shot. By combining the charge coupled devices (CCD) based single-photon detection technique with a pin-hole array (PHA) a new diagnostic technique was developed, as shown in recent experiments related to the European HiPER project [3] (Labate et al., 2009). Here we qualitatively describe the PHA production process on a heavy metal substrate by means of SEM images that show an internal diameter on the micrometer scale and an aspect ratio of about 20. The characterization of the X-ray contrast up to 90 keV is presented. The data analysis of the X-ray photons interaction on CCD, for spectrum reconstruction up to high energy, is described [4] (Levato et al., 2008).

Original languageEnglish (US)
Pages (from-to)842-844
Number of pages3
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume623
Issue number2
DOIs
StatePublished - Nov 11 2010

Keywords

  • Metal mesh holes
  • Single photon counting
  • Ultrafast ablation
  • X-ray energy resolved imaging
  • X-ray pin-hole array (PHA)
  • X-ray single-shot imaging

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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