Grazing incidence pumping of an 18.9 nm Ni-like Mo X-ray laserN. Booth1, M.H. Edwards1, Z. Zhai1, G.J. Tallents1, T. Dzelzainis2, C.L.S. Lewis2, A. Behjat3, Q. Dong4, S.J. Wang4, D. Neely5, P. Foster5 and M. Streeter5
1 Department of Physics, University of York, York YO10 5DD, UK
2 School of Mathematics and Physics, Queen's University of Belfast, Belfast BT7 1NN, UK
3 Department of Physics, Yazd University, Yazd, Iran
4 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
5 Central Laser Facility, Rutherford Appleton Laboratory, Chilton, Didcot OX11 0QX, UK
Results of an experiment investigating the grazing-incidence pumping of a Ni-like Mo X-ray laser are presented. The X-ray laser was produced with a 600 mJ, 500 ps background pulse and a 250 mJ, 240 fs main pulse. X-ray laser output was measured using a flat-field spectrometer modified to record both the first- and second-order output of the molybdenum lasing emission. Time-resolved data was obtained using an Axis-Photonique PX1 X-ray streak camera coupled to the first order output of the flat-field spectrometer. It is shown that saturated X-ray laser output is produced with energy up to 150 nJ, and pulse duration of typically 1.7 ps for a range of grazing angles and delays between the background and main pulse. The experimental data is interpreted in terms of a model taking account of the expected ASE variation of X-ray laser output.
© EDP Sciences, Springer-Verlag 2009