When underwater testing of explosives to determine their energy content, the raw data has to be corrected for several reasons. One of them is the shape of charge. If the shots are not symmetrical, the test results have to be corrected by the shape correction factor K_f which is defined as K_f = E_(SYMMETRICAL)/E_(SHAPE). The shape of cylindrical charge can be defined as L = length of the charge divided by the diameter. By measuring the bubble energy content of a set of cylindrical charges and by plotting the shape correction factor as a function of the shape of the charges, one gets a curve, which can be used to describe the shape correction factor for all cylindrical charge.
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