Publications (9)
Experimental Reconstruction of Source 4D Phase Space Without Prior Knowledge of Transfer Matrix
Charles Zhang, Elena Echeverria, Abigail Flint +7
We experimentally demonstrate a method for reconstructing the transverse 4D phase space of an electron beam at the time of emission from downstream diagnostics of the 4D phase spac…
Operation of Cs-Sb-O activated GaAs in a high voltage DC electron gun at high average current
Jai Kwan Bae, Matthew Andorf, Adam Bartnik +4
Negative Electron Affinity (NEA) activated GaAs photocathodes are the most popular option for generating a high current (> 1 mA) spin-polarized electron beam. Despite its popularit…
Building a Start-to-End Model of the CESR Injector Linac
Ryland Goldman, Adam Bartnik, Jared Maxson
The CESR injector linac supplies positrons to the Cornell Electron Storage Ring in six stages: a thermionic cathode, a 150 kV DC gun, a prebuncher, four electron linac sections, a…
Thermal emittance measurements of a cesium potassium antimonide photocathode
Ivan Bazarov, Luca Cultrera, Adam Bartnik +6
Thermal emittance measurements of a CsK2Sb photocathode at several laser wavelengths are presented. The emittance is obtained with a solenoid scan technique using a high voltage dc…
Monochromation of pulsed electron beams with terahertz radiation at a planar mirror
Cecilia Abbamonte, Adam Bartnik, Jared Maxson
Exquisite control of electron beam energy is required for many electron spectroscopy and imaging applications. For both continuous and pulsed beams, the beam energy spread is funda…
Ultimate bunch length and emittance performance of an MeV ultrafast electron diffraction apparatus with a DC gun and a multi-cavity SRF linac
Adam Bartnik, Colwyn Gulliford, Georg H. Hoffstaetter +1
We present the design of a high repetition rate MeV energy ultrafast electron diffraction instrument based on a DC photoelectron gun and an SRF linac with multiple independently co…