>Any photomultiplier tubes in the application? Am working >on a scintillation detector using a 1.5Gsps ADC and a >Virtex-4 FPGA and would love to trade war stories.. >this thing is keeping me up at nights.. No, this is using CCD detectors to measure the scintillation of minerals caused by x-rays from the sun. It is a slightly updated version of the DCIXS instrument currently orbiting the moon on Smart-1. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist