TY  - CONF
AU  - Popp, Jennifer
AU  - Bohlen, Simon
AU  - Helary, Louis
AU  - Stehr, Felix
AU  - List, Jenny
AU  - Moortgat-Pick, Gudrid
AU  - Osterhoff, Jens
AU  - Põder, Kristjan
TI  - Compton transmission polarimetry of laser-plasma accelerated electron beams
JO  - Proceedings of Science / International School for Advanced Studies
VL  - (SPIN2023)
IS  - DESY-24-009
SN  - 1824-8039
CY  - Trieste
PB  - SISSA
M1  - PUBDB-2024-00196
M1  - DESY-24-009
T2  - 2814921
SP  - 093
PY  - 2024
AB  - 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.
T2  - 25th International Spin Physics Symposium
CY  - 24 Sep 2023 - 29 Sep 2023, Durham, North Carolina (USA)
Y2  - 24 Sep 2023 - 29 Sep 2023
M2  - Durham, North Carolina, USA
LB  - PUB:(DE-HGF)16 ; PUB:(DE-HGF)8 ; PUB:(DE-HGF)7
DO  - DOI:10.22323/1.456.0093
UR  - https://bib-pubdb1.desy.de/record/601466
ER  -