TY - CPAPER
AU - Vecchione, T.
TI - Simulating Single Crystal Copper Photocathode Emittance
J2 - Proc. of FEL2015
AB - The performance of free-electron lasers depends on the quality of the electron beam used. In some cases this performance can be improved by optimizing the choice of photocathode with respect to emittance. With this in mind, electronic structure calculations have been included in photoemission simulations and used to predict the emittance from single crystal copper photocathodes. The results from different low-index surfaces are reported. Within the model assumptions the Cu(100) surface was identified as having minimal emittance, particularly when illuminated by 266 nm light and extracted in a 60 MV/m gradient. These findings may guide future experimental work, leading to improved machine performance.
PB - JACoW
CY - Geneva, Switzerland
SP - 587
EP - 591
KW - emittance
KW - simulation
KW - electron
KW - FEL
KW - laser
DA - 2015/12
PY - 2015
SN - 978-3-95450-134-2
DO - 10.18429/JACoW-FEL2015-WEP002
UR - http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/wep002.pdf
ER -