Analysis of laser-generated plasma ionizing radiation by synthetic single crystal diamond detectors

M. Marinelli, E. Milani, G. Prestopino, C. Verona*, G. Verona-Rinati, M. Cutroneo, L. Torrisi, D. Margarone, A. Velyhan, J. Krasa, E. Krousky

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

Diamond based detectors have been used in order to analyze the ionizing radiation emitted from the laser-generated plasma. High energy proton/ion beams were generated at Prague Asterix Laser System (PALS) Centre by the sub-nanosecond kJ-class laser at intensities above 10 16 W/cm 2 . The tested detectors consisted of a photoconductive device based on high quality chemical vapor deposition (CVD) single crystal diamond, produced at Rome "Tor Vergata" University. They have been operated in planar configuration, having inter-digitized electrodes. The proposed diamond detectors were able to measure UV, X-rays, electrons and ions. They have been employed in time-of-flight (TOF) configuration and their reliability was checked by comparison with standard ion collectors (mostly used at PALS). Both the forward and backward expanding plasma was characterized in the experiment. The results indicate that diamond detectors are very promising for the characterization of fast proton and ion beams produced by high power laser systems.

Original languageEnglish
Pages (from-to)104-108
Number of pages5
JournalApplied Surface Science
Volume272
DOIs
Publication statusPublished - 01 May 2013
Externally publishedYes

Keywords

  • Diamond detector
  • Ionizing radiation
  • Laser-generated plasma
  • Single crystal diamond
  • Time-of-fight spectrometer

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

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