Joe Frisch: Synchrotron radiation sources and free ... - Conferences
Joe Frisch: Synchrotron radiation sources and free ... - Conferences
Joe Frisch: Synchrotron radiation sources and free ... - Conferences
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Laser-Plasma Accelerators - LBNL<br />
Potential for a very compact X-ray<br />
source<br />
Esarey, Schroeder,<br />
Leemans, Rev. Mod. Phys.<br />
(2009).<br />
Plasma: (H-discharge capillary)<br />
n ≈ 10 18 cm -3 density<br />
Accelerating field:<br />
E max ≈ 100 GV/m<br />
λ p = 2�c/w p<br />
≈ 10 mm<br />
Technology not there yet – but dramatic<br />
improvements in the last decade!<br />
3 cm<br />
short pulse,<br />
intense laser:<br />
I ≈ 10 18 W/cm 2<br />
Laser:<br />
C. Schroeder<br />
LBNL<br />
1.5 J, 45 fs,<br />
40 TW peak power<br />
measurement<br />
Measurements (2006)<br />
1 GeV, Q ≈ 30 pC, e N ≈ 1 mm,<br />
bunch duration ≈ few fs,<br />
s E/E ≈ 2.5% rms,<br />
Leemans et al., Nature Phys. (2006)
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