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

被引：6

作者：

Kondo, Kotaro ^{[1
]}

Nishiuchi, Mamiko ^{[1
]}

Sakaki, Hironao ^{[1
]}

Dover, Nicholas P. ^{[1
]}

Lowe, Hazel F. ^{[1
]}

Miyahara, Takumi ^{[2
]}

Watanabe, Yukinobu ^{[2
]}

Ziegler, Tim ^{[3
]}

Zeil, Karl ^{[3
]}

Schramm, Ulrich ^{[3
]}

Ditter, Emma J. ^{[4
]}

Hicks, George S. ^{[4
]}

Ettlinger, Oliver C. ^{[4
]}

Najmudin, Zulfikar ^{[4
]}

Kiriyama, Hiromitsu ^{[1
]}

Kando, Masaki ^{[1
]}

Kondo, Kiminori ^{[1
]}

机构：

[1] Natl Inst Quantum & Radiol Sci & Technol QST, Kansai Photon Sci Inst KPSI, Kizugawa, Kyoto 6190215, Japan

[2] Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, Kasuga, Fukuoka 8168580, Japan

[3] Helmholtz Zentrum Dresden Rossendorf, Bautzner Landstr 400, D-01328 Dresden, Germany

[4] Imperial Coll London, Blackett Lab, John Adams Inst Accelerator Sci, London SW7 2AZ, England

来源：

CRYSTALS | 2020年 / 10卷 / 09期

基金：

英国科学技术设施理事会; 日本学术振兴会;

关键词：

Ti Sapphire laser; high-power laser; laser-driven heavy ion acceleration; surface treatment; CW laser heating; oxygen ion source; ION-ACCELERATION;

D O I：

10.3390/cryst10090837

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

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 mu m 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 x 10(21)W/cm(2), 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.

引用

页码：1 / 10

页数：10

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