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@INPROCEEDINGS{PenaAsmus:600086,
author = {Pena Asmus, Felipe Lars and Lindstroem, Carl Andreas and
Beinortaite, Judita and Björklund Svensson, Jonas Halfdan
and Boulton, Lewis Anthony and Diederichs, Severin and
Foster, Brian and Garland, Matthew James and Gonzalez
Caminal, Pau and Loisch, Gregor and Schröder, Sarah and
Thévenet, Maxence and Wesch, Stephan and Wood, Jonathan
Christopher and Osterhoff, Jens and D'Arcy, Richard},
title = {{D}river energy depletion - {E}nergy {D}epletion and
{R}e-{A}cceleration of {D}river {E}lectrons},
reportid = {PUBDB-2023-07739},
year = {2023},
abstract = {For plasma-wakefield accelerators to fulfil their potential
for cost effectiveness and reduced envi-ronmental footprint,
it is essential that their energy-transfer efficiency be
maximized. A key aspectof this efficiency is the
near-complete transfer of energy, or depletion, from the
driver electrons tothe plasma wake. Achieving full depletion
is limited by the process of re-acceleration, which oc-curs
when the driver electrons decelerate to non-relativistic
energies, slipping backwards into theaccelerating phase of
the wakefield and being subsequently re-accelerated. Such
re-accelerationis observed here for the first time. At this
re-acceleration limit, we measure a beam driver de-positing
(56 ± $5)\%$ of its energy into a 195-mm-long plasma.
Combining this driver-to-plasmaefficiency with previously
measured plasma-to-beam and expected wall-plug-to-driver
efficien-cies, our result shows that plasma-wakefield
accelerators can in principle reach or even exceed
theenergy-transfer efficiency of conventional accelerators.},
month = {Sep},
date = {2023-09-18},
organization = {European Advanced Accelerator Concepts
Workshop, Isola d'Elba (Italy), 18 Sep
2023 - 22 Sep 2023},
cin = {$HH_FH_FTX_AS$ / MPA2},
cid = {$I:(DE-H253)HH_FH_FTX_AS-20210421$ /
I:(DE-H253)MPA2-20210408},
pnm = {621 - Accelerator Research and Development (POF4-621) / 6G2
- FLASH (DESY) (POF4-6G2)},
pid = {G:(DE-HGF)POF4-621 / G:(DE-HGF)POF4-6G2},
experiment = {EXP:(DE-H253)FLASHForward-20150101},
typ = {PUB:(DE-HGF)6},
url = {https://bib-pubdb1.desy.de/record/600086},
}