1209 
* PNA ALA LALA AN A A Le 
:€—200 usec —¥ 
CN NN ON ANA ON ALN Ne 
i975 O usec -—> 
INUAN TING ANUIN FRNA NAN MN AAA AA 
'<— 200 usec —> 
Fig. ll. Typical Pressure Time Records Obtained at the 
Intersection of Shock Waves. 
Gauges 4 ft. from two 1700 ¢. pentolite charges separated 
by 4A), 16 ine; (8), 29.5 in., and (C), 45 in. 
