Chris Lee FRS 142 19 April 2004 Prof. Groth GPS Basics Made up of a constellation of 27 satellites Each of these satellites are about 12,000 miles from.
Characterization of Detectors NEP= noise equivalent power = noise current (A/ Hz)/Radiant sensitivity (A/W) D = detectivity = area/NEP IR cut-off maximum.
Photomultipliers hf e e e e e e PE effect Secondary electron emission Electron multiplication.
Postwar Marketing of New Chemicals for Civilian Use.
