| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2023-08-02 |
| タイトル |
|
|
タイトル |
Development of Two-Color Laser Imaging Interferometer Using CO2 Laser and Quantum Cascade Laser in the Large Helical Device |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
plasma diagnostics |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
interferometer |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
CO2 laser |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
quantum cascade laser |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
LHD |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 著者 |
KINOSHITA, Toshiki
TANAKA, Kenji
TAKEMURA, Yuki
TAKESHIDA, Shota
SASAKI, Hikona
|
| 著者ID |
|
|
内容記述タイプ |
Other |
|
内容記述 |
0000-0003-3930-4434 |
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
CO2 laser interferometers are a promising option for high-density plasma measurements. However, in low- and middle-density measurements, noise due to mechanical vibrations is a serious problem. To remove this noise, we developed a two-color laser imaging interferometer using a CO2 laser and quantum cascade (QC) laser, called the CO2/QC laser imaging interferometer, through benchtop experiments and installed it in the Large Helical Device (LHD). Benchtop experiments provided optical design guidelines for the CO2/QC laser imaging interferometer to minimize the influence of the unstable output wavelength of the QC laser. The optical system in LHD was designed according to this guideline, and the vibration noise was successfully reduced to 2.80 × 1018 m-3. We also demonstrate measurement examples of hollowed and peaked electron density profiles evaluated using Abel inversion and macro-scale instability. This is the first study to present the measurement results of high-temperature plasma using a CO2/QC two-color laser interferometer. The study outcomes provide important insights for the development of two-color laser interferometers in future fusion devices. |
|
言語 |
en |
| 書誌情報 |
en : Plasma and Fusion Research
巻 17,
p. 1402107,
発行日 2022-12-09
|
| 出版者 |
|
|
出版者 |
The Japan Society of Plasma Science and Nuclear Fusion Research |
|
言語 |
en |
| ISSN |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
1880-6821 |
| 書誌レコードID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA12346675 |
| DOI |
|
|
関連タイプ |
isIdenticalTo |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.1585/pfr.17.1402107 |
| 権利 |
|
|
言語 |
en |
|
権利情報 |
(c) 2023 The Japan Society of Plasma Science and Nuclear Fusion Research |
| 関連サイト |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.1585/pfr.17.1402107 |
|
|
関連名称 |
Publisher version |
| 著者版フラグ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| NAIS |
|
|
|
13548 |
13548_PFR.pdf (5.5 MB)
.png)
