000456053 001__ 456053 000456053 005__ 20250716150143.0 000456053 0247_ $$2doi$$a10.1103/PhysRevLett.126.174801 000456053 0247_ $$2ISSN$$a0031-9007 000456053 0247_ $$2ISSN$$a1079-7114 000456053 0247_ $$2ISSN$$a1092-0145 000456053 0247_ $$2datacite_doi$$a10.3204/PUBDB-2021-01303 000456053 0247_ $$2altmetric$$aaltmetric:104791336 000456053 0247_ $$2pmid$$apmid:33988405 000456053 0247_ $$2WOS$$aWOS:000652836300005 000456053 0247_ $$2openalex$$aopenalex:W3159548170 000456053 037__ $$aPUBDB-2021-01303 000456053 041__ $$aEnglish 000456053 082__ $$a530 000456053 1001_ $$0P:(DE-H253)PIP1021382$$aKirchen, Manuel$$b0$$eCorresponding author 000456053 245__ $$aOptimal Beam Loading in a Laser-Plasma Accelerator 000456053 260__ $$aCollege Park, Md.$$bAPS$$c2021 000456053 3367_ $$2DRIVER$$aarticle 000456053 3367_ $$2DataCite$$aOutput Types/Journal article 000456053 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1628509446_25597 000456053 3367_ $$2BibTeX$$aARTICLE 000456053 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000456053 3367_ $$00$$2EndNote$$aJournal Article 000456053 520__ $$aApplications of laser-plasma accelerators demand low energy spread beams and high-efficiency operation. Achieving both requires flattening the accelerating fields by controlled beam loading of the plasma wave. Here, we optimize the generation of an electron bunch via localized ionization injection, such that the combination of injected current profile and averaged acceleration dynamics results in optimal beam loading conditions. This enables the reproducible production of 1.2% rms energy spread bunches with 282 MeV and 44 pC at an estimated energy-transfer efficiency of ∼19%. We correlate shot-to-shot variations to reveal the phase space dynamics and train a neural network that predicts the beam quality as a function of the drive laser. 000456053 536__ $$0G:(DE-HGF)POF4-621$$a621 - Accelerator Research and Development (POF4-621)$$cPOF4-621$$fPOF IV$$x0 000456053 588__ $$aDataset connected to CrossRef, Journals: bib-pubdb1.desy.de 000456053 693__ $$0EXP:(DE-MLZ)NOSPEC-20140101$$5EXP:(DE-MLZ)NOSPEC-20140101$$eNo specific instrument$$x0 000456053 7001_ $$0P:(DE-H253)PIP1027758$$aJalas, Soeren$$b1 000456053 7001_ $$0P:(DE-H253)PIP1022096$$aMessner, Philipp$$b2 000456053 7001_ $$0P:(DE-H253)PIP1016482$$aWinkler, Paul Viktor$$b3 000456053 7001_ $$0P:(DE-H253)PIP1024414$$aEichner, Timo$$b4 000456053 7001_ $$0P:(DE-H253)PIP1023364$$aHuebner, Lars$$b5 000456053 7001_ $$0P:(DE-H253)PIP1028488$$aHülsenbusch, Thomas$$b6 000456053 7001_ $$0P:(DE-H253)PIP1087563$$aJeppe, Laurids$$b7 000456053 7001_ $$0P:(DE-H253)PIP1091505$$aParikh, Trupen$$b8 000456053 7001_ 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