Effect of driver dimensions (length and diameter) on pressure range and mean pressures.

Data as shown as mean± s.e.m., n = 10. Driven section length: 72.5 in. Mild (>20–50 psi), Moderate (>50–90 psi) and Severe (>90–130 psi) bTBI classification.*This length was from the first-generation design of the shock tube, in which the driver was filled for variable time intervals (range, 500 ms-3 s) to produce an incremental increase in pressures (range, 17–44 psi). Abbreviations: in-inch; psi-pounds per square inch. Effect of driver dimensions (length and diameter) on pressure range and mean pressures.