Nuclear Fusion (Jan 2022)

Fabrication of high-concentration Cu-doped deuterated targets for fast ignition experiments

  • Tomokazu Ikeda,
  • Yumi Kaneyasu,
  • Hitomi Hosokawa,
  • Keisuke Shigemori,
  • Takayoshi Norimastu,
  • Marilou Cadatal-Raduban,
  • Keiji Nagai,
  • Sadaoki Kojima,
  • Yuki Abe,
  • Eisuke Miura,
  • Yoneyoshi Kitagawa,
  • Mao Takemura,
  • Yubo Wang,
  • Jinyuan Dun,
  • Shuwang Guo,
  • Shoui Asano,
  • Ryunosuke Takizawa,
  • Shinsuke Fujioka,
  • Hiroyuki Shiraga,
  • Yasunobu Arikawa,
  • Tetsuo Ozaki,
  • Akifumi Iwamoto,
  • Hitoshi Sakagami,
  • Hiroshi Sawada,
  • Yoshitaka Mori,
  • Kohei Yamanoi

DOI
https://doi.org/10.1088/1741-4326/aca2ba
Journal volume & issue
Vol. 63, no. 1
p. 016010

Abstract

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In high-energy-density physics, including inertial fusion energy using high-power lasers, doping tracer atoms and deuteration of target materials play an important role in diagnosis. For example, a low-concentration Cu dopant acts as an x-ray source for electron temperature detection while a deuterium dopant acts as a neutron source for fusion reaction detection. However, the simultaneous achievement of Cu doping, a deuterated polymer, mechanical toughness and chemical robustness during the fabrication process is not so simple. In this study, we report the successful fabrication of a Cu-doped deuterated target. The obtained samples were characterized by inductively coupled plasma optical emission spectrometry, differential scanning calorimetry and Fourier transform infrared spectroscopy. Simultaneous measurements of Cu K-shell x-ray emission and beam fusion neutrons were demonstrated using a petawatt laser at Osaka University.

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