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Article

High-Intensity Laser-Driven Oxygen Source from CW Laser-Heated Titanium Tape Targets

1
Kansai Photon Science Institute (KPSI), National Institutes for Quantum and Radiological Science and Technology (QST), Kizugawa, Kyoto 619-0215, Japan
2
Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
3
Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
4
John Adams Institute for Accelerator Science, Blackett Laboratory, Imperial College London, London SW7 2AZ, UK
*
Author to whom correspondence should be addressed.
Crystals 2020, 10(9), 837; https://doi.org/10.3390/cryst10090837
Received: 19 August 2020 / Revised: 15 September 2020 / Accepted: 16 September 2020 / Published: 19 September 2020
(This article belongs to the Special Issue Development of High Intensity Crystal Laser and Its Applications)
The interaction of high-intensity laser pulses with solid targets can be used as a highly charged, energetic heavy ion source. Normally, intrinsic contaminants on the target surface suppress the performance of heavy ion acceleration from a high-intensity laser–target interaction, resulting in preferential proton acceleration. Here, we demonstrate that CW laser heating of 5 µm titanium tape targets can remove contaminant hydrocarbons in order to expose a thin oxide layer on the metal surface, ideal for the generation of energetic oxygen beams. This is demonstrated by irradiating the heated targets with a PW class high-power laser at an intensity of 5 × 1021 W/cm2, showing enhanced acceleration of oxygen ions with a non-thermal-like distribution. Our new scheme using a CW laser-heated Ti tape target is promising for use as a moderate repetition energetic oxygen ion source for future applications. View Full-Text
Keywords: Ti Sapphire laser; high-power laser; laser-driven heavy ion acceleration; surface treatment; CW laser heating; oxygen ion source Ti Sapphire laser; high-power laser; laser-driven heavy ion acceleration; surface treatment; CW laser heating; oxygen ion source
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MDPI and ACS Style

Kondo, K.; Nishiuchi, M.; Sakaki, H.; Dover, N.P.; Lowe, H.F.; Miyahara, T.; Watanabe, Y.; Ziegler, T.; Zeil, K.; Schramm, U.; Ditter, E.J.; Hicks, G.S.; Ettlinger, O.C.; Najmudin, Z.; Kiriyama, H.; Kando, M.; Kondo, K. High-Intensity Laser-Driven Oxygen Source from CW Laser-Heated Titanium Tape Targets. Crystals 2020, 10, 837. https://doi.org/10.3390/cryst10090837

AMA Style

Kondo K, Nishiuchi M, Sakaki H, Dover NP, Lowe HF, Miyahara T, Watanabe Y, Ziegler T, Zeil K, Schramm U, Ditter EJ, Hicks GS, Ettlinger OC, Najmudin Z, Kiriyama H, Kando M, Kondo K. High-Intensity Laser-Driven Oxygen Source from CW Laser-Heated Titanium Tape Targets. Crystals. 2020; 10(9):837. https://doi.org/10.3390/cryst10090837

Chicago/Turabian Style

Kondo, Kotaro, Mamiko Nishiuchi, Hironao Sakaki, Nicholas P. Dover, Hazel F. Lowe, Takumi Miyahara, Yukinobu Watanabe, Tim Ziegler, Karl Zeil, Ulrich Schramm, Emma J. Ditter, George S. Hicks, Oliver C. Ettlinger, Zulfikar Najmudin, Hiromitsu Kiriyama, Masaki Kando, and Kiminori Kondo. 2020. "High-Intensity Laser-Driven Oxygen Source from CW Laser-Heated Titanium Tape Targets" Crystals 10, no. 9: 837. https://doi.org/10.3390/cryst10090837

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