J. Phys. IV France 11 (2001) Pr2-409-Pr2-412
Strong soft X-ray emission from a double-stream gas puff target irradiated with a nanosecond Nd : YAG laserH. Fiedorowicz1, A. Bartnik1, R. Rakowski1, M. Szczurek1, H. Daido2, 3, M. Suzuki2, 3, S. Yamagami2, I.W. Choi2, 4 and H.J. Tang2
1 Institute of Optoelectronics, Military University of Technology, ul. Kaliskiego 2, 00-908 Warsaw, Poland
2 Institute of Laser Engineering, Osaka University, Osaka 565-0871, Japan
3 Advanced Photon Research Center, Japan Atomic Energy Research Institute, Kyoto 619-0215, Japan
4 Department of Physics, Korea Advanced Institute of Science, Taejon 1305-701, Korea
Soft x-ray emission from a new double-stream gas puff target irradiated with a nanosecond, high-power Nd : YAG laser pulse has been studied. The target was formed by pulsed injection of gas into a hollow gas stream made from helium by using a double-nozzle setup. Strong x-ray emissions near 10 nm from the double-stream krypton/helium, near 11 nm from the xenon/helium, and at 13 nm from the oxygen/helium targets were observed. The emission from the double-stream gas puff target was several times higher as compared to the ordinary gas puff targets, and comparable to the emission from the solid targets irradiated in the same conditions.
© EDP Sciences 2001