Journal of Power Sources, Vol.170, issue 2, July 2007, pp.376-386. 1 Water distribution measurement for a PEMFC through neutron radiography Yong-Song Chen a , Huei Peng a *, Daniel S. Hussey b , David L. Jacobson b , Doanh T. Tran c , Tarek Abdel-Baset c , Mark Biernacki c a Department of Mechanical Engineering, University of Michigan, Ann Arbor, 1231 Beal Avenue, Ann Arbor, MI 48109-2121, USA b Center for Neutron Research, National Institute of Standards and Technology, 100 Bureau Dr., Stop 8461, Gaithersburg, MD 20899-8461, USA c DaimlerChrysler Corporation, 800 Chrysler Drive, Auburn Hills, MI 48326-2757, USA *Corresponding author. Tel.: +1 734 936-0352; fax: +1 734 764-4256 E-mail Address: hpeng@umich.edu