Enhanced and reproducible X-ray emission in a low-energy plasma focus S. Ahmad, M. Sadiq, S. Hussain, M. Shafiq, P. Lee, M. Zakaullah and A. Waheed Europhys. Lett., 73 1 (2006) 42-48 Published online: 02 December 2005 DOI: 10.1209/epl/i2005-10364-y