PAC2013 - List of Authors (Xie, J.)

Paper	Title	Page
THPAC17	Alkali Antimonide Photocathodes for Everyone	1178
	J. Smedley, K. Attenkofer, S.G. Schubert BNL, Upton, Long Island, New York, USA I. Ben-Zvi, X. Liang, E.M. Muller, M. Ruiz-Osés Stony Brook University, Stony Brook, USA J. DeFazio PHOTONIS USA PENNSYLVANIA, INC., Lancaster, USA H.A. Padmore, J.J. Wong LBNL, Berkeley, California, USA J. Xie ANL, Argonne, USA
	Funding: The authors wish to acknowledge the support of the US DOE, under Contract No. KC0407-ALSJNT-I0013, DE-AC02-98CH10886 and DE-SC0005713. Use of CHESS is supported by NSF award DMR-0936384. Alkali Antimonide photocathodes have yielded the highest current on record for any photoinjector source (75 mA), with QE of ~10% for green light. However, traditional growth methods for these cathodes yield material that is inherently rough, leading to rise of the intrinsic emittance for high gradient injectors such as those for next-generation light sources. It this presentation we will explore the origin of roughness in these materials, as well as the growth dynamics, using in situ and in operando techniques, including Grazing Incidence X-ray Diffraction, Grazing Incidence Small Angle X-ray Scattering, X-ray reflectivity and in vacuum Atomic Force Microscopy.

Paper

Title

Page

Alkali Antimonide Photocathodes for Everyone

1178

J. Smedley, K. Attenkofer, S.G. Schubert
BNL, Upton, Long Island, New York, USA
I. Ben-Zvi, X. Liang, E.M. Muller, M. Ruiz-Osés
Stony Brook University, Stony Brook, USA
J. DeFazio
PHOTONIS USA PENNSYLVANIA, INC., Lancaster, USA
H.A. Padmore, J.J. Wong
LBNL, Berkeley, California, USA
J. Xie
ANL, Argonne, USA

Funding: The authors wish to acknowledge the support of the US DOE, under Contract No. KC0407-ALSJNT-I0013, DE-AC02-98CH10886 and DE-SC0005713. Use of CHESS is supported by NSF award DMR-0936384.
Alkali Antimonide photocathodes have yielded the highest current on record for any photoinjector source (75 mA), with QE of ~10% for green light. However, traditional growth methods for these cathodes yield material that is inherently rough, leading to rise of the intrinsic emittance for high gradient injectors such as those for next-generation light sources. It this presentation we will explore the origin of roughness in these materials, as well as the growth dynamics, using in situ and in operando techniques, including Grazing Incidence X-ray Diffraction, Grazing Incidence Small Angle X-ray Scattering, X-ray reflectivity and in vacuum Atomic Force Microscopy.