Monte Carlo simulation method for incoherent Thomson scattering spectra from arbitrary electron distribution functions

• 資料種別: 記事
• タイトル: Monte Carlo simulation method for incoherent Thomson scattering spectra from arbitrary electron distribution functions
• 著者標目: SAKAI, Kentaro; TOMITA, Kentaro; HOSHI, Takeo; YASUHARA, Ryo
• 出版年月日等: 2026-01-07
• 出版年（W3CDTF）: 2026-01-07
• タイトル（掲載誌）: Journal of Instrumentation
• 巻号年月日等（掲載誌）: 21 January 2026
• 掲載巻: 21
• 掲載号: January 2026
• 掲載ページ: C01002-
• 掲載年月日（W3CDTF）: 2026-01-07
• 出版事項（掲載誌）: IOP Publishing
• 本文の言語コード: en
• 件名標目: Plasma diagnostics - interferometry; spectroscopy and imaging; Simulation methods and programs
• 対象利用者: 一般
• 著作権情報: © 2026 The Author(s). Published by IOP Publishing Ltd on behalf of Sissa Medialab. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
• 関連情報（URI）: http://hdl.handle.net/10655/0002001818; https://nifs-repository.repo.nii.ac.jp/records/2001818
• 連携機関・データベース: 国立情報学研究所 : CiNii Research; https://cir.nii.ac.jp/
• 提供元機関・データベース: 学術機関リポジトリデータベース; https://irdb.nii.ac.jp

• 要約等: We developed a Monte Carlo simulation method to calculate incoherent Thomson scattering spectra in high temperature plasmas. The basic idea is to treat the entire scattering process as the superposition of individual photon-electron interactions. We introduce macro-particles, referred from particle-in-cell simulations, to reduce the computational cost, and obtain scattered spectra within a reasonable computational time. Since the velocity of the interacting electron is randomly sampled from an electron distribution function, the method can be applied to arbitrary electron distribution functions provided an appropriate sampling scheme is available. We present simulation results for relativistic Maxwellian and kappa distribution functions, and compare them with both analytical and numerical spectra for validation. The simulated spectra show good agreement with both analytical and numerical results, demonstrating that the Monte Carlo simulation method can reliably reproduce incoherent Thomson scattering spectra.
• オンライン閲覧公開範囲: インターネット公開
• 著作権情報: © 2026 The Author(s). Published by IOP Publishing Ltd on behalf of Sissa Medialab. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
• 関連情報: Kentaro Sakai et al 2026 JINST 21 C01002; Publisher version; https://doi.org/10.1088/1748-0221/21/01/C01002
• 関連情報（DOI）: 10.1088/1748-0221/21/01/C01002; https://doi.org/10.1088/1748-0221/21/01/C01002
• 連携機関・データベース: 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• 提供元機関・データベース: 核融合科学研究所 : 核融合科学研究所機関リポジトリ