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000463084 1001_ $$0P:(DE-H253)PIP1023434$$aSchröder, Sarah$$b0$$eCorresponding author$$udesy
000463084 1112_ $$a12th International Particle Accelerator Conference, IPAC2021$$cCampinas$$d2021-05-24 - 2021-05-28$$gIPAC21$$wBrazil
000463084 245__ $$aPrecision control of plasma wakefields for highly efficient and energy-spread-preserving electron acceleration
000463084 260__ $$c2021
000463084 3367_ $$033$$2EndNote$$aConference Paper
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000463084 520__ $$aPlasma-wakefield accelerators driven by intense particle beams promise to significantly reduce the size of future high-energy facilities. These applications require an energy-efficient acceleration process with a well-controlled energy spectrum, both of which can be achieved simultaneously by tailoring the plasma wakefield. Prerequisite for such control of the wakefield is its precise measurement. Here we discuss a new measurement technique that enables femtosecond-level sampling of the longitudinal electric fields and that is particularly powerful due to its operational simplicity. Using this method, we experimentally demonstrated optimal beamloading in a nonlinear electron-driven plasma accelerator by wakefield flattening at the few-percent level. Bunches were accelerated at a gradient of 1.3  GV/m and with an energy-transfer efficiency of (42±4)% while preserving per-mille energy spreads with full charge coupling. These results open the door to high-quality operation of future plasma accelerators through precise control of the acceleration process.
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000463084 7001_ $$0P:(DE-H253)PIP1086874$$aLindstroem, Carl Andreas$$b1$$udesy
000463084 7001_ $$0P:(DE-H253)PIP1019641$$aBohlen, Simon$$b2$$udesy
000463084 7001_ $$0P:(DE-H253)PIP1086724$$aBoulton, Lewis$$b3
000463084 7001_ $$0P:(DE-H253)PIP1083196$$aBoyle, Gregory James$$b4$$udesy
000463084 7001_ $$0P:(DE-H253)PIP1027904$$aD'Arcy, Richard$$b5$$udesy
000463084 7001_ $$0P:(DE-HGF)0$$aOssa, Alberto de la$$b6
000463084 7001_ $$0P:(DE-H253)PIP1086959$$aChappell, James$$b7
000463084 7001_ $$0P:(DE-H253)PIP1029417$$aDiederichs, Severin$$b8$$udesy
000463084 7001_ $$0P:(DE-H253)PIP1084257$$aGarland, Matthew James$$b9$$udesy
000463084 7001_ $$0P:(DE-H253)PIP1022006$$aGonzalez Caminal, Pau$$b10$$udesy
000463084 7001_ $$0P:(DE-HGF)0$$aKnetsch, Alexander$$b11
000463084 7001_ $$0P:(DE-H253)PIP1026627$$aLoisch, Gregor$$b12$$udesy
000463084 7001_ $$0P:(DE-H253)PIP1030949$$aPoder, Kristjan$$b13$$udesy
000463084 7001_ $$0P:(DE-H253)PIP1015071$$aSchaper, Lucas$$b14$$udesy
000463084 7001_ $$0P:(DE-H253)PIP1003038$$aSchmidt, Bernhard$$b15$$udesy
000463084 7001_ $$0P:(DE-H253)PIP1026344$$aSheeran, Bridget$$b16$$udesy
000463084 7001_ $$0P:(DE-H253)PIP1016481$$aTauscher, Gabriele$$b17
000463084 7001_ $$0P:(DE-H253)PIP1006306$$aWesch, Stephan$$b18$$udesy
000463084 7001_ $$0P:(DE-H253)PIP1089935$$aWood, Jonathan Christopher$$b19$$udesy
000463084 7001_ $$0P:(DE-H253)PIP1006317$$aZemella, Johann$$b20$$udesy
000463084 7001_ $$0P:(DE-H253)PIP1012785$$aOsterhoff, Jens$$b21$$udesy
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