dorsal/arxiv
View SchemaCompression of High-Charge Electron Bunches
| Authors | M. J. Fitch, A. C. Melissinos, N. Barov, J. -P. Carneiro, H. T. Edwards, W. H. Hartung |
|---|---|
| Categories | |
| ArXiv ID | physics/0008206 |
| URL | https://arxiv.org/abs/physics/0008206 |
| Journal | eConf C000821 (2000) MOB16 |
Abstract
The A0 Photoinjector at Fermilab can produce high charge (10-14 nC) electron bunches of low emittance (20 pi mm-mrad for 12 nC). We have undertaken a study of the optimal compression conditions. Off-crest acceleration in the 9-cell capture cavity induces an energy-time correlation, which is rotated by the compressor chicane (4 dipoles). The bunch length is measured using streak camera images of optical transition radiation. We present measurements under various conditions, including the effect of the laser pulse length (2 ps sigma Gaussian vs. 10 ps FWHM flat top). The best compression to date is for a 13.2 nC bunch with sigma = 0.63 mm (1.89 ps), which corresponds to a peak current of 2.8 kA.
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"abstract": "The A0 Photoinjector at Fermilab can produce high charge (10-14 nC) electron\nbunches of low emittance (20 pi mm-mrad for 12 nC). We have undertaken a study\nof the optimal compression conditions. Off-crest acceleration in the 9-cell\ncapture cavity induces an energy-time correlation, which is rotated by the\ncompressor chicane (4 dipoles). The bunch length is measured using streak\ncamera images of optical transition radiation. We present measurements under\nvarious conditions, including the effect of the laser pulse length (2 ps sigma\nGaussian vs. 10 ps FWHM flat top). The best compression to date is for a 13.2\nnC bunch with sigma = 0.63 mm (1.89 ps), which corresponds to a peak current of\n2.8 kA.",
"arxiv_id": "physics/0008206",
"authors": [
"M. J. Fitch",
"A. C. Melissinos",
"N. Barov",
"J. -P. Carneiro",
"H. T. Edwards",
"W. H. Hartung"
],
"categories": [
"physics.acc-ph"
],
"journal_ref": "eConf C000821 (2000) MOB16",
"title": "Compression of High-Charge Electron Bunches",
"url": "https://arxiv.org/abs/physics/0008206"
},
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