Design and Recent Progress of High Intensity Accelerator for Jinping Underground Nuclear Astrophysics Experiment (JUNA)

被引：0

作者：

Chen L. ^{[1
]}

Cui B. ^{[1
]}

Ma Y. ^{[1
]}

Ma R. ^{[1
]}

Tang B. ^{[1
]}

Huang Q. ^{[1
]}

Ma X. ^{[1
]}

Lian G. ^{[1
]}

Guo B. ^{[1
]}

Liu W. ^{[1
]}

Sun L. ^{[2
]}

Wu Q. ^{[2
]}

机构：

[1] China Institute of Atomic Energy, Beijing

[2] Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou

来源：

Yuanzineng Kexue Jishu/Atomic Energy Science and Technology | 2020年 / 54卷 / 11期

关键词：

Direct measurement; High intensity accelerator; Underground laboratory;

D O I：

10.7538/yzk.2019.youxian.0865

中图分类号：

学科分类号：

摘要：

Direct measurement of the cross sections for the key nuclear reactions is crucial for obtaining benchmark data for stellar model, verifying extrapolation model, constraining theoretical calculations, and solving key scientific questions in nuclear astrophysics. However, cross sections of the astrophysical reactions are extremely small. Tiny reaction rates in laboratories at the earth surface are hampered by the cosmic-ray background. With the ultra-low background, underground lab becomes a promising solution of experimental nuclear astrophysics. China Jinping Underground Laboratory (CJPL) is currently deepest underground site in the world. For such experiments, a 400 kV and 10 mA accelerator specially designed for Jinping Underground Nuclear Astrophysics Experiment (JUNA) will be placed in CJPL. In this paper, JUNA high intensity accelerator was introduced. Its layout, design considerations, beam optics and recent progress in ground laboratory were presented. © 2020, Editorial Board of Atomic Energy Science and Technology. All right reserved.

引用

页码：2231 / 2237

页数：6

共 12 条

[1] RUBIN V C, GALAXIES S., Cosmos: The past decade, the next decade, Science, 209, 4452, pp. 64-71, (1980)
[2] ROLFS C, RODNEY W S., Cauldrons in the cosmos, (1988)
[3] CONFORTOLA F, BEMMERER D, BONETTI R, Et al., Underground measurement of 14N(p, X)15O astrophysical factor at low energy, Journal of Physics: Conference Series, 39, pp. 262-265, (2006)
[4] JUNKER M, D'ALESSANDRO A, ZAVATARELLI S, Et al., Cross section of 3He(3He, 2p)4He measure at solar energies, Physical Review C, 70, 1-3, pp. 382-385, (1999)
[5] FORMICOLAA A, IMBRIANIB G, JUNKERC M, Et al., The LUNA Ⅱ accelerator, Nuclear Instruments and Methods in Physics Research A, 507, 3, pp. 609-616, (2003)
[6] LEMUT A, LEMUT A, COUDER M, Et al., Design of a 400 kV deep underground, high detector efficiency, high target density, high beam intensity accelerator facility, Physical Review Special Topics-Accelerators and Beams, 14, (2011)
[7] KANG K J, CHENG J P, CHEN Y H, Et al., Status and prospects of a deep underground laboratory in China, Journal of Physics: Conference Series, 203, (2010)
[8] WU Q, SUN L T, CUI B Q, Et al., Design of an intensity ion source and LEBT for Jinping Underground Nuclear Astrophysics experiments, Nuclear Instruments and Methods in Physics Research A, 830, pp. 214-218, (2016)
[9] ROHRER U., Computer programs for designing, investigating and commissioning charged particle beam lines
[10] BENISMAIL A, DUPERRIER R, URIOT D, Et al., Space charge compensation in low energy proton beams, Proceedings of LINAC 2004, (2005)

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