自由電子激光（Free Electron Lasers,FELs）能夠產(chǎn)生高亮度,高功率,全相干,以及超短脈沖的X射線輻射。這些特性使其在生物,化學(xué),醫(yī)學(xué),物理等許多領(lǐng)域展現(xiàn)出十分耀眼的活力。從最初理論的提出到現(xiàn)在,短短幾十年間,自由電子激光得到了飛速的發(fā)展,并且在常規(guī)激光器難以實現(xiàn)的遠紅外,極紫外,X射線波段建成了用戶裝置。在X射線波段的應(yīng)用中,生物大分子單顆粒相干衍射成像（Coherent Diffraction Imaging,CDI）,泵浦-探針（Pump-Probe）對超快物理化學(xué)動力學(xué)過程的探測,以及強場極端條件下物理等領(lǐng)域的研究對具有全相干,超快,高穩(wěn)定性,高功率的X射線FEL光源有著強烈的需求�，F(xiàn)有的X射線FEL用戶裝置主要都工作在自放大輻射（Self-Amplified Spon-taneous Emission,SASE）模式,比如,已建成的FLASH（德國）,LCLS（美國）,SACLA（日本）,European-XFEL（德國）,以及正在建造的,SwissFEL（瑞士）,PAL-XFEL（韓國）,和SHINE（中國）。SASE模式下產(chǎn)生的輻射脈沖雖然具有橫向全相... 

【文章來源】：中國科學(xué)技術(shù)大學(xué)安徽省 211工程院校 985工程院校

【文章頁數(shù)】：195 頁

【學(xué)位級別】：博士

【文章目錄】：
英文部分
    Abstract
    Acknowledgements
    1 Introduction
        1.1 Overview of FELs
        1.2 FEL operation modes
        1.3 Future development of FELs
        1.4 Thesis organization and innovation
    2 Basic principles of Free Electron Lasers
        2.1 Electron beams
            2.1.1 Electron beam phase space
            2.1.2 Electron beam emittance
            2.1.3 Electron beam propagation
            2.1.4 Electron distribution in phase space
        2.2 Radiation beams
            2.2.1 Angular spectrum diffraction
            2.2.2 Radiation energy transport
            2.2.3 Wigner distribution function
            2.2.4 Spatial and temporal coherence
        2.3 Basic FEL theory
            2.3.1 Electron trajectory in an undulator
            2.3.2 Longitudinal dynamics of FEL
            2.3.3 Low-gain regime
            2.3.4 High-gain regime
            2.3.5 1-D solution of high-gain FEL
            2.3.6 Parameter optimization of high-gain FEL
        2.4 Fully coherent free electron lasers
            2.4.1 External seeded free electron laser
            2.4.2 Self-seeding free electron laser
            2.4.3 X-ray Free electron laser oscillator
        2.5 FEL simulation codes
        2.6 Conclusion
    3 Dynamical theory of X-ray diffraction
        3.1 Historical developments
        3.2 Dynamical theory of X-ray diffraction
            3.2.1 Maxwell equations inside the crystal
            3.2.2 Solution for two-beam diffraction
            3.2.3 Dispersion surface in reciprocal space
            3.2.4 Bragg and Laue diffraction geometries
            3.2.5 Crystal detuning effect in X-ray diffraction
            3.2.6 Darwin width in Bragg geometry
        3.3 Transmissiveity and reflectivity in Bragg and Laue geometries
            3.3.1 Amplitude ratio of refracted and reflected waves
            3.3.2 Thin crystal in Bragg geometry
            3.3.3 Thin crystal in Laue geometry
            3.3.4 Transverse offset of Bragg diffraction
        3.4 The applications in HXRSS FEL
        3.5 Summary and discussion
    4 Studies on seed generation and seed properties of HXRSS
        4.1 Introduction and motivation
        4.2 Seed generation for HXRSS FEL
            4.2.1 One dimensional seed generation
            4.2.2 Quasi-three-dimensional seed generation
            4.2.3 Three dimensional seed generation
        4.3 Spectral properties of seed
        4.4 HXRSS FEL operation mode
            4.4.1 Short-bunch operation mode
            4.4.2 Long-bunch operation mode
        4.5 Summary and conclusion
    5 Efficiency enhancement by crystal detuning in HXRSS FEL
        5.1 Introduction and motivation
        5.2 Efficiency enhancement by undulator tapering
        5.3 Efficiency enhancement by crystal detuning effect
            5.3.1 Detuning effect of crystal monochromator
            5.3.2 Crystal detuning in hard self-seeding FEL
            5.3.3 Crystal detuning effect in XFELO
        5.4 Summary and discussion
    6 The fluctuation of hard X-ray self-seeding Free Electron Laser
        6.1 Intrinsic fluctuation of SASE
        6.2 Fluctuation associated with crystal bandwidth
        6.3 Fluctuation arising from electron beam energy jitter
        6.4 Fluctuation induced by the angular jitter
        6.5 Fluctuation arising from the time jitter
        6.6 Fluctuation caused by crystal detuning effect
        6.7 Summary and discussion
    7 An optimal HXRSS scheme of LCLS-Ⅱ
        7.1 The operating modes of LCLS-Ⅱ
        7.2 Self-seeding scheme
        7.3 Damage discussion
        7.4 HXRSS of LCLS-Ⅱ 4GeV operation mode
            7.4.1 Electron beam and crystal parameters
            7.4.2 Lower limit: 3.25 keV
            7.4.3 Upper limit: 4.25 keV
        7.5 HXRSS of LCLS-Ⅱ-HE 8GeV operation mode
            7.5.1 Electron beam and crystal parameters
            7.5.2 One-stage HXRSS investigation
            7.5.3 Emittance tolerance investigation
        7.6 HXRSS of CuRF-Linac operation mode
        7.7 Conclusion
    8 Summary and discussion
        8.1 Summary
        8.2 Discussion
    Bibliography
    Biography
中文部分
    中文摘要
    第一部分 緒論
    第二部分 自由電子激光基本理論
    第三部分 X射線衍射動力學(xué)理論
    第四部分 種子光的數(shù)值模擬和種子光特性研究
    第五部分 髙效率硬X射線自種子自由電子激光研究
    第六部分 硬X射線自種子自由電子激光種子能量的抖動性研究
    第七部分 LCLS-Ⅱ硬X射線自種子自由電子激光方案研究
    第八部分 總結(jié)和展望


【參考文獻】：
期刊論文
[1]Review of fully coherent free-electron lasers[J]. Chao Feng,Hai-Xiao Deng.  Nuclear Science and Techniques. 2018(11)



本文編號：2900165