Abstract
The Brookhaven Accelerator Test Facility (ATF) uses a photocathode rf gun to provide a high-brightness electron beam intended for FEL and laser acceleration experiments. The rf gun consists of 1 1 2 cells driven at 2856 MHz in π-mode with a maximum cathode field of 100 MV/m. To achieve long lifetimes, our photocathode development concentrates on robust metals such as copper, yttrium and samarium. We illuminate these cathodes with a 10 ps, frequency-quadrupled Nd: YAG laser. We describe the initial operation of the gun, including measurements of transverse and longitudinal emittance, quantum efficiencies, and peak current. These results are compared to models.
| Original language | English |
|---|---|
| Pages (from-to) | 372-376 |
| Number of pages | 5 |
| Journal | Nuclear Inst. and Methods in Physics Research, A |
| Volume | 318 |
| Issue number | 1-3 |
| DOIs | |
| State | Published - Jul 1 1992 |
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