Plasma and Fusion Research

Volume 17, 2402012 (2022)

Regular Articles

Feasibility Study of Deuterium-Deuterium Fusion Profile Diagnostics Using Fusion Born 3 MeV Proton for CFQS

Kunihiro OGAWA^1,2), Mitsutaka ISOBE^1,2), Ryosuke SEKI^1,2), Hideo NUGA¹⁾, Hiroyuki YAMAGUCHI^1,2), Siriyaporn SANGAROON³⁾, Akihiro SHIMIZU^1,2), Shoichi OKAMURA¹⁾, Hiromi TAKAHASHI^1,2), Tetsurato OISHI^1,2), Shigeyoshi KINOSHITA¹⁾, Takanori MURASE¹⁾, Sho NAKAGAWA¹⁾, Hiroyuki TANOUE¹⁾, Masaki OSAKABE^1,2), Haifeng LIU⁴⁾ and Yuhong XU⁴⁾

1): National Institute for Fusion Science, National Institutes of Natural Sciences, Toki 509-5292, Japan
2): The Graduate University for Advanced Studies, SOKENDAI, Toki 509-5292, Japan

3): Mahasarakham University, Kantharawichai District, Maha Sarakham 44150, Thailand

4): Southwest Jiaotong University, Sha Xi Mei Shi Yi Tiao Jie, Jinniu District, Chengdu, Sichuan, China

(Received 8 December 2021 / Accepted 14 February 2022 / Published 30 March 2022)

Abstract

A feasibility study for measuring a deuterium-deuterium (D-D) fusion reaction radial profile by promptly lost D-D fusion born 3 MeV protons, whose energy Larmor radius is the same as the minor radius of CFQS, was performed. The Lorentz orbit code was utilized to estimate the predicted signals of collimated proton detectors using the D-D fusion radial profile calculated by the analytical Fokker-Planck code for steady-state plasma FIT3D-DD code. The inversion of the D-D fusion profile using the estimated signals was performed using a linear matrix solution library. The coarse agreement between input and inverted profiles shows the possibility of D-D fusion profile diagnostics by a 3 MeV proton in CFQS.

Keywords

CFQS, fusion product diagnostics, fusion emission profile, deuterium plasma, energetic ion

DOI: 10.1585/pfr.17.2402012

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