1. Optically controlled laser-plasma electron accelerators for compact  - ray sources
Serge Kalmykov, UNL (WG 6, Tuesday, 10/26/2017) vg
+15 fs
Bi-color stack of sub-Joule pulses is resilient to degradation of the dense plasma (n0  1019 cm-3)
Electron beam quality is preserved
Electron energy is doubled vs. predictions of scaling
Production of ultra-bright (Bn > 1017 A/m2), GeV-scale bunches is expected in a mm-length plasma, with a kHz rep. rate, at affordable average laser power.
Stack-driven LPA produces perfect e-beams for a Thomson scattering-based -ray source:
Photon signal to background ratio exceeds 4:1
Photon yield in a sr observation solid angle d = (/2)  e  -2: up to 5  106 in full bandwidth
Photon energy is tunable from 4 to 16 MeV, while preserving the yield
Photon pulse length: 0.8 to 3.8 fs
Photon pulse power: 1 to 4 GW
With a kHz repetition rate promised by the stack-driven LPA, the expected dosage is  1010 ph/s
z = 1.6 mm
z = 2.15 mm
z = 2.15 mm
Electron energy
spectra
at dephasing
-ray flux in the
direction
of e-beam
propagation