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SLAC Publication: SLAC-PUB-15904
SLAC Release Date: July 25, 2014
Laser Ionized Preformed Plasma at FACET
Li, Selina.
The Facility for Advanced Accelerator and Experimental Tests (FACET) at SLAC installed a 10-TW Ti:Sapphire laser system for pre-ionized plasma wakefield acceleration experiments. High energy (500 mJ), short (50 fs) pulses of 800-nm laser light at 1 Hz are used at the FACET experimental area to produce a plasma column. The laser pulses are stretched to 250 fs before injection into a vapor cell, where the laser is focused by an axicon lens to form a plasma column that can be sustained over the d... Show Full Abstract
The Facility for Advanced Accelerator and Experimental Tests (FACET) at SLAC installed a 10-TW Ti:Sapphire laser system for pre-ionized plasma wakefield acceleration experiments. High energy (500 mJ), short (50 fs) pulses of 800-nm laser light at 1 Hz are used at the FACET experimental area to produce a plasma column. The laser pulses are stretched to 250 fs before injection into a vapor cell, where the laser is focused by an axicon lens to form a plasma column that can be sustained over the desired radius and length. A 20-GeV electron bunch interacts with this preformed plasma to generate a non-linear wakefield, thus accelerating a trailing witness bunch with gradients on the order of a few GV/m. The experimental setup and methods for producing the pre-ionized plasma for plasma wakef ield acceleration experiments performed at FACET are described. Show Partial Abstract
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  • Interest Categories: Accelerator Physics