Accelerated protons with energies up to 70 MeV based on the optimized SG-II Peta-watt laser facility

被引：17

作者：

An, H. H. ^{[1
,4
]}

Wang, W. ^{[1
,4
]}

Xiong, J. ^{[1
,4
]}

Wang, C. ^{[1
,4
]}

Pan, X. ^{[2
,4
]}

Ouyang, X. P. ^{[2
,4
]}

Jiang, S. ^{[3
]}

Xie, Z. Y. ^{[1
,4
]}

Wang, P. P. ^{[1
,4
]}

Yao, Y. L. ^{[3
]}

Hua, N. ^{[2
,4
]}

Wang, Y. ^{[2
,4
]}

Jiang, Z. C. ^{[2
,4
]}

Xiao, Q. ^{[2
,4
]}

Ding, F. C. ^{[2
,4
]}

Wan, Y. T. ^{[1
,4
]}

Liu, X. ^{[1
,4
]}

Wang, R. R. ^{[1
,4
]}

Fang, Z. H. ^{[1
,4
]}

Yang, P. Q. ^{[2
,4
]}

Jiang, Y. E. ^{[2
,4
]}

Zhang, P. Z. ^{[2
,4
]}

Zhu, B. Q. ^{[2
,4
]}

Sun, J. R. ^{[1
,4
]}

Qiao, B. ^{[3
]}

Lei, A. L. ^{[1
,4
]}

Zhu, J. Q. ^{[2
,4
]}

机构：

[1] China Acad Engn Phys, Shanghai Inst Laser Plasma, Shanghai 201800, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China

[3] Peking Univ, Ctr Appl Phys & Technol, Beijing 100871, Peoples R China

[4] Natl Lab High Power Laser & Phys, Shanghai, Peoples R China

来源：

HIGH POWER LASER SCIENCE AND ENGINEERING | 2023年 / 11卷

基金：

中国国家自然科学基金;

关键词：

laser-driven proton acceleration; SG-II Peta-watt laser; target normal sheath acceleration; SHORT-PULSE LASERS; GAMMA-RAY; PLASMA; GENERATION; INTENSITY; ELECTRON; PHYSICS; BEAMS;

D O I：

10.1017/hpl.2023.54

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The target backsheath field acceleration mechanism is one of the main mechanisms of laser-driven proton acceleration (LDPA) and strongly depends on the comprehensive performance of the ultrashort ultra-intense lasers used as the driving sources. The successful use of the SG-II Peta-watt (SG-II PW) laser facility for LDPA and its applications in radiographic diagnoses have been manifested by the good performance of the SG-II PW facility. Recently, the SG-II PW laser facility has undergone extensive maintenance and a comprehensive technical upgrade in terms of the seed source, laser contrast and terminal focus. LDPA experiments were performed using the maintained SG-II PW laser beam, and the highest cutoff energy of the proton beam was obviously increased. Accordingly, a double-film target structure was used, and the maximum cutoff energy of the proton beam was up to 70 MeV. These results demonstrate that the comprehensive performance of the SG-II PW laser facility was improved significantly.

引用

页数：10

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