Proton Generation by Ultra-Short High-Power Laser and the Dependence on Laser Intensity and Pulse Duration
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- OISHI Yuji
- Central Research Institute of Electric Power Industry
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- NAYUKI Takuya
- Central Research Institute of Electric Power Industry
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- FUJII Takashi
- Central Research Institute of Electric Power Industry
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- TAKIZAWA Yasushi
- Central Research Institute of Electric Power Industry
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- NEMOTO Koshichi
- Central Research Institute of Electric Power Industry
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- YAMAZAKI Tosimitsu
- Central Research Institute of Electric Power Industry
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- KAYOIJI Tsutomu
- Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology Nippon Steel Corporation
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- SEKIYA Tomohiko
- Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
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- HORIOKA Kazuhiko
- Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
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- OKANO Yasuaki
- Materials and Structures Laboratory, Tokyo Institute of Technology
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- HIRONAKA Yoichiro
- Materials and Structures Laboratory, Tokyo Institute of Technology
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- NAKAMURA Kazutaka G.
- Materials and Structures Laboratory, Tokyo Institute of Technology
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- KONDO Ken-ichi
- Materials and Structures Laboratory, Tokyo Institute of Technology
Bibliographic Information
- Other Title
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- 超短パルス超高強度レーザーを用いたプロトン生成とそのレーザー強度とパルス幅依存性
- チョウタンパルス チョウコウキョウド レーザー オ モチイタ プロトン セイセイ ト ソノ レーザー キョウド ト パルスハバ イゾンセイ
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Abstract
Energetic protons (∼ 1.2 MeV) were generated by irradiation of ultra-short high-power laser pulses onto a 5 μm thick copper tape target and the dependence of the proton energies on the laser intensity and pulse duration were investigated. The laser intensity was varied between 8.5×1017 W/cm2 and 6.6×1018 W/cm2, and the pulse duration was varied from 55 fs to 400 fs. The maximum proton energy Ep_max and proton temperature were proportional to laser intensity, and they increased with the pulse duration when the laser intensity was kept constant. Thus far, Ep_max has been usually scaled as a function of laser intensity, but Ep_max depends not only on the laser intensity, but also on the pulse duration in an ultra-short pulse regime such as several tens of femto-seconds.
Journal
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- The Review of Laser Engineering
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The Review of Laser Engineering 31 (11), 747-751, 2003
The Laser Society of Japan
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Details 詳細情報について
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- CRID
- 1390001204647533312
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- NII Article ID
- 130004465395
- 10012560849
- 30020010643
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- NII Book ID
- AN00255326
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- COI
- 1:CAS:528:DC%2BD3sXpvVSgsLw%3D
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- ISSN
- 13496603
- 03870200
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- NDL BIB ID
- 6770321
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed