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@INPROCEEDINGS{Popp:601466,
author = {Popp, Jennifer and Bohlen, Simon and Helary, Louis and
Stehr, Felix and List, Jenny and Moortgat-Pick, Gudrid and
Osterhoff, Jens and Põder, Kristjan},
title = {{C}ompton transmission polarimetry of laser-plasma
accelerated electron beams},
journal = {Proceedings of Science / International School for Advanced
Studies},
volume = {(SPIN2023)},
issn = {1824-8039},
address = {Trieste},
publisher = {SISSA},
reportid = {PUBDB-2024-00196, DESY-24-009},
series = {2814921},
pages = {093},
year = {2024},
abstract = {Polarised particle beams are indispensable for the study of
spin-dependent processes . The LEAP(Laser Electron
Acceleration with Polarisation) project at DESY aims to
demonstrate theacceleration of polarised electrons in the
extremely high fields enabled by laser plasma acceleratorsto
create high energy electron beams in ultra-compact
footprint. In this proof of principleexperiment,
spin-polarised electron beams with energies of tens of MeV
will be generated in a sub-millimetre long plasma source.
For electron beams of such energies, Compton
transmissionpolarimetry is the ideal method to measure the
polarisation. Gamma rays produced bybremsstrahlung are
transmitted through an iron absorber core magnetised by a
surroundingsolenoid, with rate and energy spectrum depending
on the relativeorientation of the gamma spin and the
magnetisation direction of the iron. Thetransmission
asymmetry with respect to the direction of the magnetisation
is proportional to theinitial electron polarisation.In this
contribution, an overview of the LEAP project is presented,
detailing the setup of thepolarimeter as well as its
implementation and commissioning status.},
month = {Sep},
date = {2023-09-24},
organization = {25th International Spin Physics
Symposium, Durham, North Carolina
(USA), 24 Sep 2023 - 29 Sep 2023},
cin = {FTX / MPA4},
ddc = {530},
cid = {I:(DE-H253)FTX-20210408 / I:(DE-H253)MPA4-20220318},
pnm = {621 - Accelerator Research and Development (POF4-621)},
pid = {G:(DE-HGF)POF4-621},
experiment = {EXP:(DE-MLZ)NOSPEC-20140101},
typ = {PUB:(DE-HGF)16 / PUB:(DE-HGF)8 / PUB:(DE-HGF)7},
doi = {10.22323/1.456.0093},
url = {https://bib-pubdb1.desy.de/record/601466},
}