TY - GEN
T1 - Development of a collimated keV X-ray beam for probing of dense plasmas
AU - Shah, R.
AU - Taphuoc, K.
AU - Albert, F.
AU - Rousse, A.
AU - Burgy, F.
AU - Mercier, B.
AU - Rousseau, J. P.
AU - Pukhov, A.
AU - Kiselev, S.
PY - 2006/6/1
Y1 - 2006/6/1
N2 - Experimental findings of a fully optical, keV x-ray source of 1-2° divergence and broadband spectrum (>5 keV bandwidth) are presented. The radiation results from the highly relativistic interaction of a 30 TW(1 J, 30fs) laser pulse thru a 3 mm length span of He gas(ne = 1 × 10 19 electrons/cm3). Quantitative measurements from the filtered back-illuminated CCD give 105 photons/eV, and the knife-edge technique measures the source diameter of 10 μm. These source characteristics, the measured beam of relativistic electrons, and PIC simulation indicate the radiation results from forceful transverse oscillations of the laser-accelerated electrons in response to the ionic channel formed by the laser pulse. The source brightness (107 photons/eV/mm2/mr 2/shot and ultrafast duration (≤30fs) make it applicable to both backlighting and x-ray science applications.
AB - Experimental findings of a fully optical, keV x-ray source of 1-2° divergence and broadband spectrum (>5 keV bandwidth) are presented. The radiation results from the highly relativistic interaction of a 30 TW(1 J, 30fs) laser pulse thru a 3 mm length span of He gas(ne = 1 × 10 19 electrons/cm3). Quantitative measurements from the filtered back-illuminated CCD give 105 photons/eV, and the knife-edge technique measures the source diameter of 10 μm. These source characteristics, the measured beam of relativistic electrons, and PIC simulation indicate the radiation results from forceful transverse oscillations of the laser-accelerated electrons in response to the ionic channel formed by the laser pulse. The source brightness (107 photons/eV/mm2/mr 2/shot and ultrafast duration (≤30fs) make it applicable to both backlighting and x-ray science applications.
UR - https://www.scopus.com/pages/publications/33749342925
U2 - 10.1051/jp4:2006133097
DO - 10.1051/jp4:2006133097
M3 - Conference contribution
AN - SCOPUS:33749342925
SN - 2868839258
SN - 9782868839251
T3 - Journal De Physique. IV : JP
SP - 473
EP - 477
BT - Proceedings - IFSA 2005
T2 - IFSA 2005: Inertial Fusion Sciences and Applications 2005
Y2 - 4 September 2005 through 9 September 2005
ER -