DETECTION EFFICIENCY OF FLARED-TYPE MICRO CHANNELPLATES APPLIED FOR ToF ATOM-PROBE FIM Y. HASEGAWA, T. HASHIZUME, T. SAKURAI et Y. MIZUSHIMA J. Phys. Colloques, 47 C7 (1986) C7-509-C7-513 DOI: 10.1051/jphyscol:1986785