Efficient neutron generation from solid- nanoparticle explosions driven by DPSSL-pumped high-repetition rate femtosecond laser pulse

نویسندگان

  • Masahiro Kobayashi
  • Kenji Tashiro
  • Shuichi Takamura
  • T Watari
  • K Matsukado
  • T Sekine
  • Y Takeuchi
  • Y Hatano
  • R Yoshimura
  • N Satoh
  • K Nishihara
چکیده

We propose novel neutron source using high-intensity laser based on the cluster fusion scheme. We developed DPSSL-pumped high-repetition-rate 20-TW laser system and solid nanoparticle target for neutron generation demonstration. In our neutron generation experiment, high-energy deuterons were generated from coulomb explosion of CD solidnanoparticles and neutrons were generated by DD fusion reaction. Efficient and stable neutron generation was obtained by irradiating an intense femtosecond laser pulse of >2×10 W/cm. A yield of ~10 neutrons per shot was stably observed during 0.1-1 Hz continuous operation.

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تاریخ انتشار 2014