Beam collimation and energy spectrum compression of laser-accelerated proton beams using solenoid field and RF cavity

被引：4

作者：

Teng, J. ^{[1
]}

Gu, Y. Q. ^{[1
]}

Zhu, B. ^{[1
]}

Hong, W. ^{[1
]}

Zhao, Z. Q. ^{[1
]}

Zhou, W. M. ^{[1
]}

Cao, L. F. ^{[1
]}

机构：

[1] China Acad Engn Phys, Laser Fus Res Ctr, Sci & Technol Plasma Phys Lab, Mianyang 621900, Peoples R China

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2013年 / 729卷

基金：

中国国家自然科学基金;

关键词：

Laser-accelerated proton beams; Beam collimation; Spectrum compression; Solenoid; RF cavity;

D O I：

10.1016/j.nima.2013.07.048

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

This paper presents a new method of laser produced proton beam collimation and spectrum compression using a combination of a solenoid field and a RE cavity. The solenoid collects laser-driven protons efficiently within an angle that is smaller than 12 degrees because it is mounted few millimeters from the target, and collimates protons with energies around 2.3 MeV. The collimated proton beam then passes through a RE cavity to allow compression of the spectrum. Particle-in-cell (PIC) simulations demonstrate the proton beam transport in the solenoid and RE electric fields. Excellent energy compression and collection efficiency of protons are presented. This method for proton beam optimization is suitable for high repetition-rate laser acceleration proton beams, which could be used as an injector for a conventional proton accelerator. (C) 2013 Published by Elsevier B.V.

引用

页码：399 / 403

页数：5

共 28 条

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