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kHz激光与固体靶相互作用产生的X射线源 被引量:2

X-ray source produced by laser solid target interaction at kHz repetition rate
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摘要 利用kHz激光与固体靶相互作用产生了平均流强为1.3×107photons·sr 1·s 1的X射线源,研究了激光的对比度和能量对激光与固体靶相互作用产生的X射线能谱及Kα产额的影响,使用刀边成像技术测量了X射线源的源尺寸,并进行了初步的成像实验.实验中观察到对于非相对论级别的激光脉冲,降低激光的对比度有利于提高Kα产额,而使用高对比度高强度激光,更有利于获得高通量高信噪比X射线源. X-ray radiation with an average flux of 1.3×107 photons · sr?1· s?1 is generated by the interaction between ultra-short laser and solid target working at 1 kHz repetition rate. A knife edge is introduced to measure the source size. The X-ray emission shows obvious dependences on the laser contrast and intensity. It is discovered that at lower intensity the Kαyield increases with lower laser contrast. However, by using high contrast and high intensity laser pulses, high flux and high signal-to-noise ratio Kα X-ray can be generated. The generated source is used in proof-of-principle radiograghic imaging of simple specimens.
出处 《物理学报》 SCIE EI CAS CSCD 北大核心 2013年第20期328-332,共5页 Acta Physica Sinica
基金 科技部国家重大科学仪器设备开发专项(批准号:2012YQ12004705) 国家自然科学基金(批准号:11175192)资助的课题~~
关键词 kHz激光 固体靶 X射线 kHz laser solid target X-ray source
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  • 1Mourou G A, Tajima T, Bulanov S V 2006 Rev. Mod. Phys. 78 309.
  • 2Wilks S C, Kruer W L 1997 IEEE J. Quantum Electron. 33 1954.
  • 3Leemans W P, Nagler B, Gonslaves A J, Toth C, Nakamura K, Geddes C G R, Esarey E, Schroeder C B, Hooker S M 2006 Nat. Phys. 2 696.
  • 4Sheng Z M, Mima K, Zhang .1, Sanuki H 2005 Phys. Rev. Lett. 94 095003.
  • 5Chert L M, Wang W M, Kando M, Hudson L T, Liu E Lin X X, Ma J L, Li Y T, Bulanov S V, Tajima T, Kato Y, Sheng Z M, Zhang J 2010 Nucl. Instrum. Methods Phys. Res. A 619 128.
  • 6Rousse A, Phuoc K T, Shah R, Pukhov A, Lefebvre E, Malka V, Kise- lev S, Burgy F, Rousseau J P, Umstadter D, Hulin D 2004 Phys. Rev. Lett. 93 135005.
  • 7Xiong G, Zhao Y, Shang W L, Hu Z M, Zhu T, Wei M X, Yang G H, Zhang J Y, Yang J M 2010 Chhz. Phys. Lett. 27 095202.
  • 8Chen L M, Kando M, Xu M H, Li Y T, Koga J, Chen M, Xu H, Yuan X H, Dong Q L, Sheng Z M, Bulanov S V, Kato Y, Zhang J, Tajima T 2008 Phys. Rev. Lett. 100 045004.
  • 9Chen L M, Liu F, Wang W M, Kando M, Mao J Y, Zhang L, Ma J L, Li Y T, Bulanov S V, Tajima T, Kato Y, Sheng Z M, Wei Z Y, Zhang J 2010 Phys. Rev. Lett. 104 215004.
  • 10Siders C W, Cavalleri A, Tinten K S, Toth C, Guo T, Kammler M,Hoegen M Horn von, Wilson K R, Linde D vonder, Barty C P J 1999 Science 286 1340.

同被引文献17

  • 1徐妙华,陈黎明,李玉同,远晓辉,刘运全,Kazuhisa Nakajima,Toshi Tajima,王兆华,魏志义,赵卫,张杰.超短脉冲强激光与固体靶相互作用中Kα射线的实验研究[J].物理学报,2007,56(1):353-358. 被引量:6
  • 2Li Xiaoya, Wang Jiaxiang, Zhu Wenjun, et al. Enhanced inner-shell X ray emission by femtosecond-laser irradiation of solid cone targets [J] Physical Review E, 2011, 83:046404.
  • 3Sudipta Mondal, Indrani Chakraborty, Saima Ahmad, et al. Highly enhanced hard X-ray emission from oriented metal nanorod arrays excit- ed by intense femtosecond laser pulses[J]. Physical Review B, 2011, 83:035408.
  • 4Reich C, Gibbon P, Uschmann I, et al. Yield optimization and time structure of femtosecond laser plasma Ka sources[J]. Phys Rev Lett, 2000, 84(21) :4846.
  • 5Chen L M, Kando M, Xu M H, et al. Study of X-ray emission enhancement via a high-contrast femtosecond laser interacting with a solid foil [J]. Phys Rev Lett, 2008, 100:045004.
  • 6Mao J Y, Chen L M, Ge X L, et aI. Spectrally peaked electron beams produced via surface guiding and acceleration in femtosecond laser-sol- id interactions[J]. Physical Review E, 2012, 85:025401.
  • 7Serbanescu C G, Chakera J A, Fedosejevs R. Efficient K X-ray source from submillijoule femtoseeond laser pulses operated at kilohertz repetition rate[J]. Review of Scientific Instruments, 2007, 78:103502.
  • 8Gambacciai M, Cardarelli P, Taibi A, et ah Measurement of focal spot size in a 5.5 MeV linac[J]. Nuclear Instruments and Methods in Physics Research B, 2011, 269:1157-1165.
  • 9Wilkin Tang, Don Shiffler, Cartwright K L. Analysis of electric field screening by the proximity of two knife-edge field emitters[J]. Jour-nal of Applied Physics, 2011, 110:034905.
  • 10李成刚,邓建军,石金水,李勤,江孝国,王远,张开志,李劲,章林文.高能X射线源焦斑尺寸的时间分辨诊断[J].强激光与粒子束,2010,22(3):647-650. 被引量:3

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