ESTABLISH DESIGN CRITERIA FOR, AN OPTICAL PROBE TO MEASURE THE DUST LOFTED BY THE SHOCK WAVE DURING A NUCLEAR BLAST WAVE SIMULATION.

ESTABLISH DESIGN CRITERIA FOR, AN OPTICAL PROBE TO MEASURE THE DUST LOFTED BY THE SHOCK WAVE DURING A NUCLEAR BLAST WAVE SIMULATION. DUST DENSITY IS DETERMINED FROM THE REDUCTION IN INTENSITY OF LIGHT PROJECTED OVER AN INTERROGATION PATH TRANSVERSE TO THE FLOW. USE OF A SIMPLE LIGHT SOURCE AND DETECTOR WITH FIBER OPTIC TRANSMISSION LINES PRODUCES AN INEXPENSIVE RUGGED INSTRUMENT WHICH CAN BE DEPLOYED IN MULTIPLE PROBE RAKES. USE OF A DIGITAL DATA ACQUISITION SYSTEM MINIMIZES THE NEED FOR EXPENSIVE TRANSMISSION CABLES AND SIGNAL CONDITIONING ELECTRONICS. IN PHASE I, A LIGHT SOURCE AND A DETECTOR WILL BE SELECTED AND CALIBRATED AGAINST KNOWN PARTICLE CONCENTRATIONS AND DISTRIBUTIONS, AND PRELIMINARY DESIGNS WILL BE ESTABLISHED FOR SHOCK TUBE AND FIELD TEST MEASURING STATIONS. FOR THE EARTH, MOON AND SUN. A SINGLE "SKY MAPPER" SENSOR