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000642928 041__ $$aEnglish
000642928 1001_ $$0P:(DE-H253)PIP1089935$$aWood, Jonathan Christopher$$b0$$eCorresponding author$$udesy
000642928 1112_ $$a7th European Advanced Accelerator Conference$$cElba$$d2025-09-21 - 2025-09-27$$gEAAC$$wItaly
000642928 245__ $$aLatest Results from the FLASHForward Experiment
000642928 260__ $$c2025
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000642928 520__ $$aThe FLASHForward experiment at DESY uses high-quality electron bunches from the FLASH linac to perform fundamental plasma-wakefield-accelerator research. An overview of recent results will be provided in three areas: beam-quality preservation, energy efficient acceleration and repetition-rate limits. By precisely controlling the transverse properties of the witness bunch we demonstrate the preservation of the witness-bunch emittance εn during plasma acceleration for the first time. εn was preserved at 2.8 mm-mrad while maintaining > 20% instantaneous energy-transfer efficiency. To improve the overall energy-transfer efficiency, the acceleration distance must be increased. We will present the design and development of a new discharge plasma source which allowed us to accelerate a 1.2 GeV witness bunch by more than 0.5 GeV with per-cent-level energy spread. To further improve bunch quality, we have incorporated Bayesian optimisation techniques into our workflow and have demonstrated 0.25 GeV energy gain with < 0.2% energy spread. Finally, we further studied the ultimate repetition rate of plasma accelerators, which can be limited by secondary ionisation over tens or hundreds of nanoseconds driven by the hot plasma species left after the wakefield interaction.
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000642928 536__ $$0G:(DE-HGF)POF4-6G2$$a6G2 - FLASH (DESY) (POF4-6G2)$$cPOF4-6G2$$fPOF IV$$x1
000642928 693__ $$0EXP:(DE-H253)FLASHForward-20150101$$1EXP:(DE-H253)FLASH-20150101$$5EXP:(DE-H253)FLASHForward-20150101$$aFLASH$$eFLASHForward$$x0
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000642928 7001_ $$0P:(DE-H253)PIP1094593$$aBjörklund Svensson, Jonas Halfdan$$b2
000642928 7001_ $$0P:(DE-H253)PIP1086724$$aBoulton, Lewis Anthony$$b3
000642928 7001_ $$0P:(DE-H253)PIP1083196$$aBoyle, Gregory James$$b4
000642928 7001_ $$0P:(DE-H253)PIP1089246$$aBurghart, Philipp$$b5
000642928 7001_ $$0P:(DE-H253)PIP1107033$$aCowley, James$$b6
000642928 7001_ $$0P:(DE-H253)PIP1027904$$aD'Arcy, Richard$$b7
000642928 7001_ $$0P:(DE-H253)PIP1111863$$aDiaz Pacheco, Juan Pablo Jose$$b8
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000642928 7001_ $$0P:(DE-H253)PIP1003141$$aFoster, Brian$$b10
000642928 7001_ $$0P:(DE-H253)PIP1084257$$aGarland, Matthew James$$b11
000642928 7001_ $$0P:(DE-H253)PIP1022006$$aGonzalez Caminal, Pau$$b12
000642928 7001_ $$0P:(DE-H253)PIP1032518$$aHohmann, Marcel Stefan$$b13
000642928 7001_ $$0P:(DE-H253)PIP1108247$$aHuck, Maryam$$b14
000642928 7001_ $$0P:(DE-H253)PIP1100996$$aJones, Harry$$b15
000642928 7001_ $$0P:(DE-H253)PIP1098561$$aKanekar, Advait$$b16
000642928 7001_ $$0P:(DE-H253)PIP1014245$$aKornilov, Oleg$$b17
000642928 7001_ $$0P:(DE-H253)PIP1108728$$aKrivkova, Anna$$b18
000642928 7001_ $$0P:(DE-H253)PIP1086874$$aLindstroem, Carl Andreas$$b19
000642928 7001_ $$0P:(DE-H253)PIP1026627$$aLoisch, Gregor$$b20
000642928 7001_ $$0P:(DE-H253)PIP1098289$$aLong, Tianyun$$b21
000642928 7001_ $$0P:(DE-H253)PIP1014692$$aMaier, Andreas$$b22
000642928 7001_ $$0P:(DE-H253)PIP1083142$$aMewes, Steven Mathis$$b23
000642928 7001_ $$0P:(DE-H253)PIP1023610$$aMüller, Lukas$$b24
000642928 7001_ $$0P:(DE-H253)PIP1113163$$aNajmudin, Ibrahim$$b25
000642928 7001_ $$0P:(DE-H253)PIP1012785$$aOsterhoff, Jens$$b26
000642928 7001_ $$0P:(DE-H253)PIP1091505$$aParikh, Trupen$$b27
000642928 7001_ $$0P:(DE-H253)PIP1094542$$aPena Asmus, Felipe Lars$$b28
000642928 7001_ $$0P:(DE-H253)PIP1094107$$aSamoilenko, Dmitrii$$b29
000642928 7001_ $$0P:(DE-H253)PIP1023434$$aSchröder, Sarah$$b30
000642928 7001_ $$0P:(DE-HGF)0$$aSchultess, Ivo$$b31
000642928 7001_ $$0P:(DE-H253)PIP1006758$$aSchuette, Bernd$$b32
000642928 7001_ $$0P:(DE-HGF)0$$aSvirplys, Evaldas$$b33
000642928 7001_ $$0P:(DE-H253)PIP1093740$$aThévenet, Maxence$$b34
000642928 7001_ $$0P:(DE-HGF)0$$aThomas, J.$$b35
000642928 7001_ $$0P:(DE-H253)PIP1007368$$aVrakking, Marc$$b36
000642928 7001_ $$0P:(DE-H253)PIP1006306$$aWesch, Stephan$$b37
000642928 7001_ $$0P:(DE-H253)PIP1002533$$aWing, Matthew$$b38
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