首页|Tunable energy spectrum betatron x-ray sources in a plasma wakefield

Tunable energy spectrum betatron x-ray sources in a plasma wakefield

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X-ray sources with tunable energy spectra have a wide range of applications in different scenarios due to their different penetration depths.However,existing x-ray sources face difficulties in terms of energy regulation.In this paper,we present a scheme for tuning the energy spectrum of a betatron x-ray generated from a relativistic electron bunch oscillating in a plasma wakefield.The center energy of the x-ray source can be tuned from several keV to several hundred keV by changing the plasma density,thereby extending the control range by an order of magnitude.At different central energies,the brightness of the betatron radiation is in the range of 3.7 × 1022 to 5.5 × 1022 photons/(0.1％BW·s·mm2·mrad2)and the photon divergence angle is about 2 mrad.This high-brightness,energy-controlled betatron source could pave the way to a wide range of applications requiring photons of specific energy,such as phase-contrast imaging in medicine,non-destructive testing and material analysis in industry,and imaging in nuclear physics.

betatronplasma physicsx-rayplasma wakefield acceleration(PWFA)

奚传易、寿寅任、韩立琦、阿卜杜伍普尔·阿布力米提、刘晓丹、赵研英、余金清

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Hunan Provincial Key Laboratory of High-Energy Scale Physics and Applications,School of Physics and Electronics,Hunan University,Changsha 410082,China

Center for Relativistic Laser Science,Institute for Basic Science,Gwangju,Korea

State Key Laboratory of Nuclear Physics and Technology,and Key Laboratory of HEDP of the Ministry of Education,CAPT,Peking University,Beijing 100871,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaBeijing Distinguished Young Scientist Program and National Grand Instrument ProjectBeijing Municipal Science & Technology Commission,Administrative Commission of Zhongguancun science ParkUnited Kingdom EPSRCUnited Kingdom EPSRCUnited Kingdom EPSRCUnited Kingdom EPSRC

1192100612175058SQ2019YFF01014400Z231100006023003EP/G054950/1EP/G056803/1EP/G055165/1EP/M022463/1

2024

10.1088/1674-1056/ad4531

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子：0.995
ISSN：1674-1056
年,卷(期)：2024.33(8)