PEPPo: Using a Polarized Electron Beam to Produce Polarized Positrons

Adeyemi, Adeleke; Adderley, Philip; Ali, Mahmoud; Areti, Hari; Baylac, Maud; Benesch, Jay; Cardman, Lawrence; Clark, Jim; Cole, Phil; Covert, Steve; Cuevas, Chris; Dadoun, Olivier; Dale, Dan; Fanchini, Erica; Forest, Tony; Freyberger, Arne; Froidefond, Emmanuel; Golge, Serkan; Grames, Joseph; Gueye, Paul; Hansknecht, John; Harrell, Percy; Hyde, Charles; Kazimi, Reza; Kim, Yujong; Machie, Danny; Mahoney, Kelly; Mammei, Russell; Marton, Marc; McCarter, James; McCaughan, Michael; Muraz, Jean-Francois; Poelker, Matt; Real, Jean-Sebastien; Stutzman, Marcy; Suleiman, Riad; Tsai, Cheng-Ying; Turner, Dennis; Variola, Alessandro; Voutier, Eric; Wang, Yan

doi:10.18429/JACoW-IPAC2015-TUPMA020

Joint Accelerator Conferences Website

The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.

RIS citation export for TUPMA020: PEPPo: Using a Polarized Electron Beam to Produce Polarized Positrons

TY - CONF
AU - Adeyemi, A.H.
AU - Adderley, P.A.
AU - Ali, M.M.
AU - Areti, H.
AU - Baylac, M.A.
AU - Benesch, J. F.
AU - Cardman, L.S.
AU - Clark, J.
AU - Cole, P.
AU - Covert, S.
AU - Cuevas, C.
AU - Dadoun, O.
AU - Dale, D.
AU - Fanchini, EF.
AU - Forest, T.A.
AU - Freyberger, A.
AU - Froidefond, E.
AU - Golge, S.
AU - Grames, J.M.
AU - Gueye, P.L.
AU - Hansknecht, J.
AU - Harrell, P.L.
AU - Hyde, C.
AU - Kazimi, R.
AU - Kim, Y.
AU - Machie, D.
AU - Mahoney, K.L.
AU - Mammei, R.R.
AU - Marton, M.
AU - McCarter, J.L.
AU - McCaughan, M.D.
AU - Muraz, J-F.
AU - Poelker, M.
AU - Real, J-S.
AU - Stutzman, M.L.
AU - Suleiman, R.
AU - Tsai, C.-Y.
AU - Turner, D.L.
AU - Variola, A.
AU - Voutier, E. J-M.
AU - Wang, Y.W.
ED - Henderson, Stuart
ED - Akers, Evelyn
ED - Satogata, Todd
ED - Schaa, Volker R.W.
TI - PEPPo: Using a Polarized Electron Beam to Produce Polarized Positrons
J2 - Proc. of IPAC2015, Richmond, VA, USA, May 3-8, 2015
C1 - Richmond, VA, USA
T2 - International Particle Accelerator Conference
T3 - 6
LA - english
AB - Polarized positron beams have been identified as either an essential or a significant ingredient for the experimental program of both the present and next generation of lepton accelerators (JLab, Super KEK B, ILC, CLIC). An experiment demonstrating a new method for producing polarized positrons has been performed at the Continuous Electron Beam Accelerator Facility at Jefferson Lab. The PEPPo (Polarized Electrons for Polarized Positrons) concept relies on the production of polarized e⁻/e⁺ pairs from the bremsstrahlung radiation of a longitudinally polarized electron beam interacting within a high Z conversion target. PEPPo demonstrated the effective transfer of spin-polarization of an 8.2 MeV/c polarized (P~85%) electron beam to positrons produced in varying thickness tungsten production targets, and collected and measured in the range of 3.1 to 6.2 MeV/c. In comparison to other methods this technique reveals a new pathway for producing either high energy or thermal polarized positron beams using a relatively low polarized electron beam energy (~10MeV) .This presentation will describe the PEPPo concept, the motivations of the experiment and high positron polarization achieved.
PB - JACoW
CP - Geneva, Switzerland
SP - 1878
EP - 1880
KW - positron
KW - electron
KW - target
KW - polarization
KW - solenoid
DA - 2015/06
PY - 2015
SN - 978-3-95450-168-7
DO - 10.18429/JACoW-IPAC2015-TUPMA020
UR - http://jacow.org/ipac2015/papers/tupma020.pdf
ER -