Control of laser plasma accelerated electrons for light sources.

Control of laser plasma accelerated electrons for light sources.
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DOI:
10.1038/s41467-018-03776-x
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发表时间:
2018-04-06
影响因子:
16.6
通讯作者:
Couprie ME
Couprie ME
中科院分区:
综合性期刊1区
文献类型:
--
作者:
André T;Andriyash IA;Loulergue A;Labat M;Roussel E;Ghaith A;Khojoyan M;Thaury C;Valléau M;Briquez F;Marteau F;Tavakoli K;N'Gotta P;Dietrich Y;Lambert G;Malka V;Benabderrahmane C;Vétéran J;Chapuis L;El Ajjouri T;Sebdaoui M;Hubert N;Marcouillé O;Berteaud P;Leclercq N;El Ajjouri M;Rommeluère P;Bouvet F;Duval J-;Kitegi C;Blache F;Mahieu B;Corde S;Gautier J;Ta Phuoc K;Goddet JP;Lestrade A;Herbeaux C;Évain C;Szwaj C;Bielawski S;Tafzi A;Rousseau P;Smartsev S;Polack F;Dennetière D;Bourassin-Bouchet C;De Oliveira C;Couprie ME

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激光韦克菲尔德加速器(LWFA)具有千兆电子伏/厘米的能量增益和飞秒电子束,在超快电子衍射、多级对撞机和辐射源(电子感应加速器、康普顿、波荡器、自由电子激光器)等方面有着广阔的应用前景。然而,对于这些应用中的一些,光束性能,例如,能量扩散、发散和拍摄到拍摄的波动,需要大幅改善。在这里,我们表明,使用专用的传输线,我们可以减轻这些最初的弱点。我们证明,我们可以操纵目前可用的LWFA光束的光束的纵向和横向相空间。事实上,我们分别纠正轨道错误,并尽量减少分散由于专门设计的可变强度四极杆,并选择有用的能量范围通过磁弯道中的狭缝。因此,这种匹配的电子束导致在8米传输路径之后成功地观察到波荡器同步辐射。这些结果为要求光束质量的应用铺平了道路。加速器中的电子束质量是光源应用的关键。在这里,作者演示了激光等离子体电子的光束调节由于一个特定的传输线,使控制的发散,能量,转向和分散和应用观察波荡器辐射。
With gigaelectron-volts per centimetre energy gains and femtosecond electron beams, laser wakefield acceleration (LWFA) is a promising candidate for applications, such as ultrafast electron diffraction, multistaged colliders and radiation sources (betatron, compton, undulator, free electron laser). However, for some of these applications, the beam performance, for example, energy spread, divergence and shot-to-shot fluctuations, need a drastic improvement. Here, we show that, using a dedicated transport line, we can mitigate these initial weaknesses. We demonstrate that we can manipulate the beam longitudinal and transverse phase-space of the presently available LWFA beams. Indeed, we separately correct orbit mis-steerings and minimise dispersion thanks to specially designed variable strength quadrupoles, and select the useful energy range passing through a slit in a magnetic chicane. Therefore, this matched electron beam leads to the successful observation of undulator synchrotron radiation after an 8 m transport path. These results pave the way to applications demanding in terms of beam quality. Electron beam quality in accelerators is crucial for light source application. Here the authors demonstrate beam conditioning of laser plasma electrons thanks to a specific transport line enabling the control of divergence, energy, steering and dispersion and the application to observe undulator radiation.
DOI: 10.1038/lsa.2017.86
发表时间: 2017-11
期刊: Light, science & applications
影响因子: --
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Döpp A;Mahieu B;Lifschitz A;Thaury C;Doche A;Guillaume E;Grittani G;Lundh O;Hansson M;Gautier J;Kozlova M;Goddet JP;Rousseau P;Tafzi A;Malka V;Rousse A;Corde S;Ta Phuoc K
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发表时间: 2016-03-01
影响因子: 2.2
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发表时间: 2010-03-01
影响因子: 1.6
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