Name: 7th Advanced Accelerator Concepts Workshop
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Created at: Fri Jul 27 23:53:34 -0700 2007
Updated at: Fri Jul 27 23:53:34 -0700 2007
Edit | Back | Add Paper| title: | Summary Report: Working Group 3 on "Structure-Based Accelerator Concepts" |
| format: | conference procceeding |
| conference: | 7th Advanced Accelerator Concepts Workshop |
| year: | 1997 |
| 1 author: | |
| abstract: | The working group on structure-based accelerators had an expansive mission, consisting of externally powered structures of high frequency, novel material and/or novel structure design, wakefield (excluding plasma) accelerators, and inverse radiative process accelerators. Within the context of these themes, discussions were held on the subjects of field gradient, efficiency, and accelerated beam quality, with an eye on technical and experimental issues brought on by the need to experimentally develop these schemes. We discuss here the progress presented in the working group, as well as recommendations for future directions in this area of advanced accelerator techniques. |
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| title: | Initial commissioning results of the Next Generation Photoinjector |
| format: | conference procceeding |
| conference: | 7th Advanced Accelerator Concepts Workshop |
| year: | 1997 |
| 11 authors: | | | | | | | | | | | |
| abstract: | The BNL/SLAC/UCLA symmetrized 1.6 Cell S-band emittance-compensated photoinjector has been installed at the Brookhaven Accelerator Test Facility (ATF). The commissioning results and performance of the photocathode injector are presented. This emittance-compensated photoinjector consists of the symmetrized BNL/SLAC/UCLA 1.6 cell S-band photocathode radio-frequency (RF) gun and a single solenoidal magnet for transverse emittance compensation. The highest acceleration field achieved on the cathode is 150 MV/m, and the normal operating field is 130 MV/m. The quantum efficiency of the copper cathode was measured to be 4.5*10/sup -5/. The transverse emittance and bunch length of the photoelectron beam were measured. The optimized RMS normalized emittance for a charge of 300 pC is 0.7 pi mm-mrad. The bunch length dependency of photoelectron beam on the RF gun phase and acceleration fields were experimentally investigated. (11 References). |
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