79 citations · 333 across the 13 of their papers we have counts for
9 papers · 1 filter
Spin polarized electron beams production beyond III-V semiconductors
Luca Cultrera
This paper summarizes the state of the art of photocathode based on III-V semiconductors for spin polarized electron beam production. The limitations preventing this class of mater…
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…
A kiloelectron-volt ultrafast electron micro-diffraction apparatus using low emittance semiconductor photocathodes
W. H. Li, C. J. R. Duncan, M. B. Andorf +10
We report the design and performance of a time-resolved electron diffraction apparatus capable of producing intense bunches with simultaneously single digit micron probe size, long…
Photoemission characterization of N-polar III-Nitride photocathodes as bright electron beam source for accelerator applications
L. Cultrera, E. Rocco, F. Shahedipour-Sandvik +6
We report on the growth and characterization of a new class of photocathode structures for application as electron sources to produce high brightness electron beams for accelerator…
Cold electron beams from cryo-cooled, alkali antimonide photocathodes
Luca Cultrera, Siddharth Karkare, Hyeri Lee +2
In this letter we report on the generation of cold electron beams using a Cs3Sb photocathode grown by co-deposition of Sb and Cs. By cooling the photocathode to 90 K we demonstrate…
Demonstration of Cathode Emittance Dominated High Bunch Charge Beams in a DC gun-based Photoinjector
Colwyn Gulliford, Adam Bartnik, Ivan Bazarov +2
We present the results of transverse emittance and longitudinal current profile measurements of high bunch charge (greater than or equal to 100 pC) beams produced in the DC gun-bas…
Demonstration of Low Emittance in the Cornell Energy Recovery Linac Injector Prototype
Colwyn Gulliford, Adam Bartnik, Ivan Bazarov +13
We present a detailed study of the six-dimensional phase space of the electron beam produced by the Cornell Energy Recovery Linac Photoinjector, a high-brightness, high repetition…
Photocathode Behavior During High Current Running in the Cornell ERL Photoinjector
Luca Cultrera, Jared Maxson, Ivan Bazarov +18
The Cornell University Energy Recovery Linac (ERL) photoinjector has recently demonstrated operation at 20 mA for approximately 8 hours, utilizing a multialkali photocathode deposi…
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…