Enhancement of laser-driven betatron x-rays by a density-depressed plasma structure

B. Guo; Z. Cheng; S. Liu; X. N. Ning; J. Zhang; C. H. Pai; J. F. Hua; H. H. Chu; J. Wang; W. Lu

doi:10.1088/1361-6587/aaf613

Enhancement of laser-driven betatron x-rays by a density-depressed plasma structure

B. Guo, Z. Cheng, S. Liu, X. N. Ning, J. Zhang, C. H. Pai, J. F. Hua, H. H. Chu, J. Wang, W. Lu

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

7 引文斯高帕斯（Scopus）

摘要

We report a significant enhancement of betatron radiation from a laser wakefield accelerator (LWFA) by inserting a density-depressed plasma structure. By using a technique of transverse laser machining, a longitudinally density-depressed plasma structure with tunable length and position has been fabricated to increase the betatron amplitude of the electron beam in the LWFA, leading to an enhanced photon number and critical energy of the betatron x-ray beam. By adjusting the length and position of the plasma density depression region, the photon number of the betatron x-ray is enhanced by a factor of 3, and the critical energy is enhanced by a factor of 1.4.

原文	???core.languages.en_GB???
文章編號	035003
期刊	Plasma Physics and Controlled Fusion
卷	61
發行號	3
DOIs	https://doi.org/10.1088/1361-6587/aaf613
出版狀態	已出版 - 10 1月 2019

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10.1088/1361-6587/aaf613

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abstract = "We report a significant enhancement of betatron radiation from a laser wakefield accelerator (LWFA) by inserting a density-depressed plasma structure. By using a technique of transverse laser machining, a longitudinally density-depressed plasma structure with tunable length and position has been fabricated to increase the betatron amplitude of the electron beam in the LWFA, leading to an enhanced photon number and critical energy of the betatron x-ray beam. By adjusting the length and position of the plasma density depression region, the photon number of the betatron x-ray is enhanced by a factor of 3, and the critical energy is enhanced by a factor of 1.4.",

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author = "B. Guo and Z. Cheng and S. Liu and Ning, {X. N.} and J. Zhang and Pai, {C. H.} and Hua, {J. F.} and Chu, {H. H.} and J. Wang and W. Lu",

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T1 - Enhancement of laser-driven betatron x-rays by a density-depressed plasma structure

AU - Guo, B.

AU - Cheng, Z.

AU - Liu, S.

AU - Ning, X. N.

AU - Zhang, J.

AU - Pai, C. H.

AU - Hua, J. F.

AU - Chu, H. H.

AU - Wang, J.

AU - Lu, W.

PY - 2019/1/10

Y1 - 2019/1/10

N2 - We report a significant enhancement of betatron radiation from a laser wakefield accelerator (LWFA) by inserting a density-depressed plasma structure. By using a technique of transverse laser machining, a longitudinally density-depressed plasma structure with tunable length and position has been fabricated to increase the betatron amplitude of the electron beam in the LWFA, leading to an enhanced photon number and critical energy of the betatron x-ray beam. By adjusting the length and position of the plasma density depression region, the photon number of the betatron x-ray is enhanced by a factor of 3, and the critical energy is enhanced by a factor of 1.4.

AB - We report a significant enhancement of betatron radiation from a laser wakefield accelerator (LWFA) by inserting a density-depressed plasma structure. By using a technique of transverse laser machining, a longitudinally density-depressed plasma structure with tunable length and position has been fabricated to increase the betatron amplitude of the electron beam in the LWFA, leading to an enhanced photon number and critical energy of the betatron x-ray beam. By adjusting the length and position of the plasma density depression region, the photon number of the betatron x-ray is enhanced by a factor of 3, and the critical energy is enhanced by a factor of 1.4.

KW - betatron radiation

KW - laser plasma accelerator

KW - particle-in-cell simulations

KW - plasma machining

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U2 - 10.1088/1361-6587/aaf613

DO - 10.1088/1361-6587/aaf613

M3 - 期刊論文

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SN - 0741-3335

VL - 61

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

IS - 3

M1 - 035003

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Enhancement of laser-driven betatron x-rays by a density-depressed plasma structure

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