Production of Magnetized Electron Beam from a DC High Voltage Photogun

Mamun, Md Abdullah; Adderley, Philip; Benesch, Jay; Bullard, Don; Delayen, Jean; Grames, Joseph; Guo, Jiquan; Hannon, Fay; Hansknecht, John; Hernandez-Garcia, Carlos; Kazimi, Reza; Krafft, Geoffrey; Poelker, Matt; Suleiman, Riad; Tiefenback, Michael; Wang, Yan; Wijethunga, Sajini; Zhang, Shukui

doi:10.18429/JACoW-IPAC2018-THPMK108

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RIS citation export for THPMK108: Production of Magnetized Electron Beam from a DC High Voltage Photogun

TY - CONF
AU - Mamun, M.A.
AU - Adderley, P.A.
AU - Benesch, J. F.
AU - Bullard, D.B.
AU - Delayen, J.R.
AU - Grames, J.M.
AU - Guo, J.
AU - Hannon, F.E.
AU - Hansknecht, J.
AU - Hernandez-Garcia, C.
AU - Kazimi, R.
AU - Krafft, G.A.
AU - Poelker, M.
AU - Suleiman, R.
AU - Tiefenback, M.G.
AU - Wang, Y.W.
AU - Wijethunga, S.A.K.
AU - Zhang, S.
ED - Koscielniak, Shane
ED - Satogata, Todd
ED - Schaa, Volker RW
ED - Thomson, Jana
TI - Production of Magnetized Electron Beam from a DC High Voltage Photogun
J2 - Proc. of IPAC2018, Vancouver, BC, Canada, April 29-May 4, 2018
C1 - Vancouver, BC, Canada
T2 - International Particle Accelerator Conference
T3 - 9
LA - english
AB - Bunched-beam electron cooling is a key feature of all proposed designs of the future electron-ion collider, and a requirement for achieving the highest promised collision luminosity. At the Jefferson Lab Electron Ion Collider (JLEIC), fast cooling of ion beams will be accomplished via so-called 'magnetized cooling' implemented using a recirculator ring that employs an energy recovery linac. In this contribution, we describe the production of magnetized electron beam using a compact 300 kV DC high voltage photogun with an inverted insulator geometry, and using alkali-antimonide photocathodes. Beam magnetization was assessed using a modest diagnostic beamline that includes YAG view screens used to measure the rotation of the electron beamlet passing through a narrow upstream aperture. Magnetization results are presented for different gun bias voltages and for different laser spot sizes at the photocathode, using 532 nm lasers with DC and RF time structure. Photocathode lifetime was measured at currents up to 4.5 mA, with and without beam magnetization.
PB - JACoW Publishing
CP - Geneva, Switzerland
SP - 4567
EP - 4570
KW - cathode
KW - solenoid
KW - gun
KW - electron
KW - laser
DA - 2018/06
PY - 2018
SN - 978-3-95450-184-7
DO - 10.18429/JACoW-IPAC2018-THPMK108
UR - http://jacow.org/ipac2018/papers/thpmk108.pdf
ER -