| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2025-01-08 |
| タイトル |
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タイトル |
The Role of Collision Ionization of K-Shell Ions in Nonequilibrium Plasmas Produced by the Action of Super Strong, Ultrashort PW-Class Laser Pulses on Micron-Scale Argon Clusters with Intensity up to 5 × 10^21 W/cm^2 |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
I. Yu. Skobelev
S. N. Ryazantsev
R. K. Kulikov
M. V. Sedov
E.D. Filippov
S. A. Pikuz
T. Asai
M. Kanasaki
T. Yamauchi
S. Jinno
M. Ohta
S. Egashira
K. Sakai
T. Minami
Y. Abe
A. Tokiyasu
H. Kohri
Y. Kuramitsu
Y. Sakawa
Miyasaka Yasuhiro
Kondo Kotaro
Kon Akira
Sagisaka Akito
Ogura Koichi
Alexander Pirozhkov
Kando Masaki
Kiriyama Hiromitsu
T. Pikuz
Fukuda Yuji
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
The generation of highly charged ions in laser plasmas is usually associated with collisional ionization processes that occur in electron?ion collisions. An alternative ionization channel caused by tunnel ionization in an optical field is also capable of effectively producing highly charged ions with ionization potentials of several kiloelectronvolts when the laser intensity q >10^20W/cm2^.Itis challenging to clearly distinguish the impacts of the optical field and collisional ionizations on the evolution of the charge state of a nonequilibrium plasma produced by the interaction of high-intensity, ultrashort PW-class laser pulses with dense matter. In the present work, it is shown that the answer to this question can be obtained in some cases by observing the X-ray spectral lines caused by the transition of an electron into the K-shell of highly charged ions. The time-dependent calculations of plasma kinetics show that this is possible, for example, if sufficiently small clusters targets with low-density background gas are irradiated. In the case of Ar plasma, the limit of the cluster radius was estimated to be R_0 = 0.1 μm. The calculation results for argon ions were compared with the results of the experiment at the J-KAREN-P laser facility at QST-KPSI. |
| 書誌情報 |
Photonics
巻 10,
号 11,
p. 1250,
発行日 2023-11
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| 出版者 |
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出版者 |
MDPI |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
2304-6732 |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.3390/photonics10111250 |
2023-11 Skovelev-Sergey-Fukuda_Photonics-10-01250-v2.pdf (2.4 MB)
