Gas pixel detector for x-ray observation D. Attié, P. Colas, E. Delagnes, Y. Giomataris, M. Campbell, X. Llopart, M. Chefdeville, H. van der Graaf, J. Timmermans and J. Visschers EAS Publications Series, 37 (2009) 181-188 Published online: 11 June 2009 DOI: 10.1051/eas/0937022