Abstract
Previous work has demonstrated the use of a plasma mirror (PM), after a laser-plasma accelerator (LPA), for generating Compton γ-rays by retro-reflecting the spent laser pulse into the just-accelerated electrons. Here, we investigate the use of a PM to stimulate Compton backscatter (CBS) by retro-reflecting a spent pulse from the Texas Petawatt (TPW) laser after it has driven a cm-scale, GeV LPA. A comparative analysis between the electron and CBS pointing and divergence reveals strong agreement, from shot-to-shot, suggesting a reliable, non-invasive extension for GeV-beam metrology. Our observations confirm the self-aligning PM method is scalable to GeV LPAs, while also suggesting a technique with unique advantages and a robustness that can potentially be exploited for investigations of nonlinear Compton backscatter from ultralow divergence, GeV electrons using the Texas Petawatt Laser.
Original language | English |
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Title of host publication | Advanced Accelerator Concepts |
Subtitle of host publication | 17th Advanced Accelerator Concepts Workshop, AAC 2016 |
Publisher | American Institute of Physics Inc. |
Volume | 1812 |
ISBN (Electronic) | 9780735414808 |
DOIs | |
Publication status | Published - 6 Mar 2017 |
Event | 17th Advanced Accelerator Concepts Workshop, AAC 2016 - National Harbor, United States Duration: 31 Jul 2016 → 5 Aug 2016 |
Conference
Conference | 17th Advanced Accelerator Concepts Workshop, AAC 2016 |
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Country/Territory | United States |
City | National Harbor |
Period | 31/07/2016 → 5/08/2016 |